Attachment #97682 for bug #148550

Lines 51-60 Link Here

(-)tsocks-1.8/acconfig.h (+14 lines)
51	/* We use strsep which isn't on all machines, but we provide our own	51	/* We use strsep which isn't on all machines, but we provide our own
52	definition of it for those which don't have it, this causes us to define	52	definition of it for those which don't have it, this causes us to define
53	our version */	53	our version */
54	#undef DEFINE_STRSEP	54	#undef DEFINE_STRSEP
55		55
		56	/* Should we resolve DNS entries in a way which works well with tor? */
		57	#undef USE_TOR_DNS
		58
56	/* Allow the use of DNS names in the socks configuration file for socks	59	/* Allow the use of DNS names in the socks configuration file for socks
57	servers. This doesn't work if socksified DNS is enabled for obvious	60	servers. This doesn't work if socksified DNS is enabled for obvious
58	reasons, it also introduces overhead, but people seem to want it */	61	reasons, it also introduces overhead, but people seem to want it */
59	#define HOSTNAMES 0	62	#define HOSTNAMES 0
60		63
Lines 62-66 Link Here
62	in inspectsocks */	65	in inspectsocks */
63	#undef HAVE_GETHOSTBYNAME	66	#undef HAVE_GETHOSTBYNAME
64		67
65	/* Location of configuration file (typically /etc/tsocks.conf) */	68	/* Location of configuration file (typically /etc/tsocks.conf) */
66	#undef CONF_FILE	69	#undef CONF_FILE
		70
		71	/* Define to indicate the correct signature for gethostbyname_r */
		72	#undef HAVE_FUNC_GETHOSTBYNAME_R_6
		73	#undef HAVE_FUNC_GETHOSTBYNAME_R_5
		74	#undef HAVE_FUNC_GETHOSTBYNAME_R_3
		75
		76	/* Signatures for name resolution stuff */
		77	#undef GETHOSTBYNAME_SIGNATURE
		78	#undef GETADDRINFO_SIGNATURE
		79	#undef GETIPNODEBYNAME_SIGNATURE
		80




dnl http://autoconf-archive.cryp.to/ax_func_which_gethostbyname_r.html

AC_DEFUN([AX_FUNC_WHICH_GETHOSTBYNAME_R], [

    AC_LANG_PUSH(C)
    AC_MSG_CHECKING([how many arguments gethostbyname_r() takes])

    AC_CACHE_VAL(ac_cv_func_which_gethostbyname_r, [

################################################################

ac_cv_func_which_gethostbyname_r=unknown

#
# ONE ARGUMENT (sanity check)
#

# This should fail, as there is no variant of gethostbyname_r() that takes
# a single argument. If it actually compiles, then we can assume that
# netdb.h is not declaring the function, and the compiler is thereby
# assuming an implicit prototype. In which case, we're out of luck.
#
AC_COMPILE_IFELSE(
    AC_LANG_PROGRAM(
        [[#include <netdb.h>]],
        [[
            char *name = "www.gnu.org";
            (void)gethostbyname_r(name) /* ; */
        ]]),
    ac_cv_func_which_gethostbyname_r=no)

#
# SIX ARGUMENTS
# (e.g. Linux)
#

if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then

AC_COMPILE_IFELSE(
    AC_LANG_PROGRAM(
        [[#include <netdb.h>]],
        [[
            char *name = "www.gnu.org";
            struct hostent ret, *retp;
            char buf@<:@1024@:>@;
            int buflen = 1024;
            int my_h_errno;
            (void)gethostbyname_r(name, &ret, buf, buflen, &retp, &my_h_errno) /* ; */
        ]]),
    ac_cv_func_which_gethostbyname_r=six)

fi

#
# FIVE ARGUMENTS
# (e.g. Solaris)
#

if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then

AC_COMPILE_IFELSE(
    AC_LANG_PROGRAM(
        [[#include <netdb.h>]],
        [[
            char *name = "www.gnu.org";
            struct hostent ret;
            char buf@<:@1024@:>@;
            int buflen = 1024;
            int my_h_errno;
            (void)gethostbyname_r(name, &ret, buf, buflen, &my_h_errno) /* ; */
        ]]),
    ac_cv_func_which_gethostbyname_r=five)

fi

#
# THREE ARGUMENTS
# (e.g. AIX, HP-UX, Tru64)
#

if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then

AC_COMPILE_IFELSE(
    AC_LANG_PROGRAM(
        [[#include <netdb.h>]],
        [[
            char *name = "www.gnu.org";
            struct hostent ret;
            struct hostent_data data;
            (void)gethostbyname_r(name, &ret, &data) /* ; */
        ]]),
    ac_cv_func_which_gethostbyname_r=three)

fi

################################################################

]) dnl end AC_CACHE_VAL

case "$ac_cv_func_which_gethostbyname_r" in
    three)
    AC_MSG_RESULT([three])
    AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_3)
    ;;

    five)
    AC_MSG_RESULT([five])
    AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_5)
    ;;

    six)
    AC_MSG_RESULT([six])
    AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_6)
    ;;

    no)
    AC_MSG_RESULT([cannot find function declaration in netdb.h])
    ;;

    unknown)
    AC_MSG_RESULT([can't tell])
    ;;

    *)
    AC_MSG_ERROR([internal error])
    ;;
esac

AC_LANG_POP(C)

]) dnl end AC_DEFUN


Line 0 Link Here

(-)tsocks-1.8/autogen.sh (+6 lines)
	1	#!/bin/sh
	2
	3	aclocal -I aclocal
	4	autoconf
	5	autoheader
	6

Lines 1-5 Link Here

(-)tsocks-1.8/ChangeLog (+4 lines)
		1	version 1.80tordns - 2005.10.4 bls@totalinfosecurity.com
		2	Intercept gethostbyname() and friends, added --tordns
		3	option for better name resolution with Tor.
		4
1	version 1.80Beta5 - 2002.?.?? delius@progsoc.uts.edu.au	5	version 1.80Beta5 - 2002.?.?? delius@progsoc.uts.edu.au
2	Intercept close() to fix problems with tsocks and	6	Intercept close() to fix problems with tsocks and
3	kmail	7	kmail
4	Add FAQ to distribution	8	Add FAQ to distribution
5		9




   }

   logstamp = timestamp;
}

/* Count the bits in a netmask.  This is a little bit buggy; it assumes 
   all the zeroes are on the right... */

int count_netmask_bits(uint32_t mask)
{
    int i;
    int nbits = 0;

    for(i=0; i<32; i++) {
        if((mask >> i) & 1) {
            nbits++;
        } 
    }
    mask = ~mask;
    mask = ntohl(mask);
    if(mask & (mask+1)) {
        return -1;  /* Noncontiguous */
    }
    return nbits;
}

void show_msg(int level, char *fmt, ...) {
	va_list ap;
	int saveerr;
	extern char *progname;
   char timestring[20];

      strftime(timestring, sizeof(timestring),  "%H:%M:%S", 
               localtime(&timestamp));
      fprintf(logfile, "%s ", timestring);
   }

   // fputs(progname, logfile);

   if (logstamp) {
      fprintf(logfile, "(%d)", getpid());
   }
   

Lines 1-9 Link Here

(-)tsocks-1.8/common.h (+1 lines)
1	/* Common functions provided in common.c */	1	/* Common functions provided in common.c */
2		2
3	void set_log_options(int, char *, int);	3	void set_log_options(int, char *, int);
4	void show_msg(int level, char *, ...);	4	void show_msg(int level, char *, ...);
		5	int count_netmask_bits(uint32_t mask);
5	unsigned int resolve_ip(char *, int, int);	6	unsigned int resolve_ip(char *, int, int);
6		7
7	#define MSGNONE -1	8	#define MSGNONE -1
8	#define MSGERR 0	9	#define MSGERR 0
9	#define MSGWARN 1	10	#define MSGWARN 1




/* config.h.in.  Generated from configure.in by autoheader.  */
/* accconfig.h -- `autoheader' will generate config.h.in for tsocks . */
/* Define if you have the ANSI C header files.  */
#undef STDC_HEADERS

/* Allow tsocks to generate messages to stderr when errors are
encountered, this is really important and should only be disabled if
you're REALLY sure. It can also be turned off at run time, see the man
page for details */

/* Work out which function we have for conversion from string IPs to 
numerical ones */
#undef HAVE_INET_ADDR
#undef HAVE_INET_ATON

/* We use strsep which isn't on all machines, but we provide our own
definition of it for those which don't have it, this causes us to define
our version */
#undef DEFINE_STRSEP

/* Should we resolve DNS entries in a way which works well with tor? */
#undef USE_TOR_DNS

/* Allow the use of DNS names in the socks configuration file for socks
servers. This doesn't work if socksified DNS is enabled for obvious
reasons, it also introduces overhead, but people seem to want it */
#define HOSTNAMES 0


#undef HAVE_GETHOSTBYNAME

/* Location of configuration file (typically /etc/tsocks.conf) */
#undef CONF_FILE 

/* Define to indicate the correct signature for gethostbyname_r */
#undef HAVE_FUNC_GETHOSTBYNAME_R_6
#undef HAVE_FUNC_GETHOSTBYNAME_R_5
#undef HAVE_FUNC_GETHOSTBYNAME_R_3

/* Signatures for name resolution stuff */
#undef GETHOSTBYNAME_SIGNATURE
#undef GETADDRINFO_SIGNATURE
#undef GETIPNODEBYNAME_SIGNATURE


/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H

/* Define to 1 if you have the `dl' library (-ldl). */
#undef HAVE_LIBDL

/* Define to 1 if you have the `socket' library (-lsocket). */
#undef HAVE_LIBSOCKET

/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H

/* Define to 1 if you have the `mmap' function. */
#undef HAVE_MMAP

/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H

/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H

/* Define to 1 if you have the `strcasecmp' function. */
#undef HAVE_STRCASECMP

/* Define to 1 if you have the `strcspn' function. */
#undef HAVE_STRCSPN

/* Define to 1 if you have the `strdup' function. */
#undef HAVE_STRDUP

/* Define to 1 if you have the `strerror' function. */
#undef HAVE_STRERROR

/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H

/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H

/* Define to 1 if you have the `strncasecmp' function. */
#undef HAVE_STRNCASECMP

/* Define to 1 if you have the `strspn' function. */
#undef HAVE_STRSPN

/* Define to 1 if you have the `strtol' function. */
#undef HAVE_STRTOL

/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H

/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H

/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H

/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT

/* Define to the full name of this package. */
#undef PACKAGE_NAME

/* Define to the full name and version of this package. */
#undef PACKAGE_STRING

/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME

/* Define to the version of this package. */
#undef PACKAGE_VERSION

/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS




#! /bin/sh
# Generated automatically by configure.
# Run this file to recreate the current configuration.
# This directory was configured as follows,
# on host cardini.homenet:
#
# ./configure 
#
# Compiler output produced by configure, useful for debugging
# configure, is in ./config.log if it exists.

ac_cs_usage="Usage: ./config.status [--recheck] [--version] [--help]"
for ac_option
do
  case "$ac_option" in
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    echo "running ${CONFIG_SHELL-/bin/sh} ./configure  --no-create --no-recursion"
    exec ${CONFIG_SHELL-/bin/sh} ./configure  --no-create --no-recursion ;;
  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
    echo "./config.status generated by autoconf version 2.13"
    exit 0 ;;
  -help | --help | --hel | --he | --h)
    echo "$ac_cs_usage"; exit 0 ;;
  *) echo "$ac_cs_usage"; exit 1 ;;
  esac
done

ac_given_srcdir=.
ac_given_INSTALL="/usr/bin/install -c"

trap 'rm -fr Makefile config.h conftest*; exit 1' 1 2 15

# Protect against being on the right side of a sed subst in config.status.
sed 's/%@/@@/; s/@%/@@/; s/%g$/@g/; /@g$/s/[\\&%]/\\&/g;
 s/@@/%@/; s/@@/@%/; s/@g$/%g/' > conftest.subs <<\CEOF
/^[ 	]*VPATH[ 	]*=[^:]*$/d

s%@SHELL@%/bin/sh%g
s%@CFLAGS@%-g -O2 -Wall%g
s%@CPPFLAGS@%%g
s%@CXXFLAGS@%%g
s%@FFLAGS@%%g
s%@DEFS@%-DHAVE_CONFIG_H%g
s%@LDFLAGS@%%g
s%@LIBS@% -lc%g
s%@exec_prefix@%${prefix}%g
s%@prefix@%/usr%g
s%@program_transform_name@%s,x,x,%g
s%@bindir@%${exec_prefix}/bin%g
s%@sbindir@%${exec_prefix}/sbin%g
s%@libexecdir@%${exec_prefix}/libexec%g
s%@datadir@%${prefix}/share%g
s%@sysconfdir@%${prefix}/etc%g
s%@sharedstatedir@%${prefix}/com%g
s%@localstatedir@%${prefix}/var%g
s%@libdir@%/lib%g
s%@includedir@%${prefix}/include%g
s%@oldincludedir@%/usr/include%g
s%@infodir@%${prefix}/info%g
s%@mandir@%${prefix}/man%g
s%@host@%i586-pc-linux-gnu%g
s%@host_alias@%i586-pc-linux-gnu%g
s%@host_cpu@%i586%g
s%@host_vendor@%pc%g
s%@host_os@%linux-gnu%g
s%@CC@%gcc%g
s%@INSTALL_PROGRAM@%${INSTALL}%g
s%@INSTALL_SCRIPT@%${INSTALL_PROGRAM}%g
s%@INSTALL_DATA@%${INSTALL} -m 644%g
s%@LN_S@%ln -s%g
s%@CPP@%gcc -E%g
s%@FIND@%%g
s%@TAIL@%%g
s%@SPECIALLIBS@%-ldl %g

CEOF

# Split the substitutions into bite-sized pieces for seds with
# small command number limits, like on Digital OSF/1 and HP-UX.
ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
ac_file=1 # Number of current file.
ac_beg=1 # First line for current file.
ac_end=$ac_max_sed_cmds # Line after last line for current file.
ac_more_lines=:
ac_sed_cmds=""
while $ac_more_lines; do
  if test $ac_beg -gt 1; then
    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
  else
    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
  fi
  if test ! -s conftest.s$ac_file; then
    ac_more_lines=false
    rm -f conftest.s$ac_file
  else
    if test -z "$ac_sed_cmds"; then
      ac_sed_cmds="sed -f conftest.s$ac_file"
    else
      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
    fi
    ac_file=`expr $ac_file + 1`
    ac_beg=$ac_end
    ac_end=`expr $ac_end + $ac_max_sed_cmds`
  fi
done
if test -z "$ac_sed_cmds"; then
  ac_sed_cmds=cat
fi

CONFIG_FILES=${CONFIG_FILES-"Makefile"}
for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case "$ac_file" in
  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
  *) ac_file_in="${ac_file}.in" ;;
  esac

  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.

  # Remove last slash and all that follows it.  Not all systems have dirname.
  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
    # The file is in a subdirectory.
    test ! -d "$ac_dir" && mkdir "$ac_dir"
    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
    # A "../" for each directory in $ac_dir_suffix.
    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
  else
    ac_dir_suffix= ac_dots=
  fi

  case "$ac_given_srcdir" in
  .)  srcdir=.
      if test -z "$ac_dots"; then top_srcdir=.
      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
  *) # Relative path.
    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
    top_srcdir="$ac_dots$ac_given_srcdir" ;;
  esac

  case "$ac_given_INSTALL" in
  [/$]*) INSTALL="$ac_given_INSTALL" ;;
  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
  esac

  echo creating "$ac_file"
  rm -f "$ac_file"
  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
  case "$ac_file" in
  *Makefile*) ac_comsub="1i\\
# $configure_input" ;;
  *) ac_comsub= ;;
  esac

  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
  sed -e "$ac_comsub
s%@configure_input@%$configure_input%g
s%@srcdir@%$srcdir%g
s%@top_srcdir@%$top_srcdir%g
s%@INSTALL@%$INSTALL%g
" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
fi; done
rm -f conftest.s*

# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
# NAME is the cpp macro being defined and VALUE is the value it is being given.
#
# ac_d sets the value in "#define NAME VALUE" lines.
ac_dA='s%^\([ 	]*\)#\([ 	]*define[ 	][ 	]*\)'
ac_dB='\([ 	][ 	]*\)[^ 	]*%\1#\2'
ac_dC='\3'
ac_dD='%g'
# ac_u turns "#undef NAME" with trailing blanks into "#define NAME VALUE".
ac_uA='s%^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
ac_uB='\([ 	]\)%\1#\2define\3'
ac_uC=' '
ac_uD='\4%g'
# ac_e turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
ac_eA='s%^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
ac_eB='$%\1#\2define\3'
ac_eC=' '
ac_eD='%g'

if test "${CONFIG_HEADERS+set}" != set; then
  CONFIG_HEADERS="config.h"
fi
for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case "$ac_file" in
  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
  *) ac_file_in="${ac_file}.in" ;;
  esac

  echo creating $ac_file

  rm -f conftest.frag conftest.in conftest.out
  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
  cat $ac_file_inputs > conftest.in

  cat > conftest.frag <<CEOF
${ac_dA}CONF_FILE${ac_dB}CONF_FILE${ac_dC}"/etc/tsocks.conf"${ac_dD}
${ac_uA}CONF_FILE${ac_uB}CONF_FILE${ac_uC}"/etc/tsocks.conf"${ac_uD}
${ac_eA}CONF_FILE${ac_eB}CONF_FILE${ac_eC}"/etc/tsocks.conf"${ac_eD}
${ac_dA}STDC_HEADERS${ac_dB}STDC_HEADERS${ac_dC}1${ac_dD}
${ac_uA}STDC_HEADERS${ac_uB}STDC_HEADERS${ac_uC}1${ac_uD}
${ac_eA}STDC_HEADERS${ac_eB}STDC_HEADERS${ac_eC}1${ac_eD}
${ac_dA}HAVE_UNISTD_H${ac_dB}HAVE_UNISTD_H${ac_dC}1${ac_dD}
${ac_uA}HAVE_UNISTD_H${ac_uB}HAVE_UNISTD_H${ac_uC}1${ac_uD}
${ac_eA}HAVE_UNISTD_H${ac_eB}HAVE_UNISTD_H${ac_eC}1${ac_eD}
${ac_dA}HAVE_STRCSPN${ac_dB}HAVE_STRCSPN${ac_dC}1${ac_dD}
${ac_uA}HAVE_STRCSPN${ac_uB}HAVE_STRCSPN${ac_uC}1${ac_uD}
${ac_eA}HAVE_STRCSPN${ac_eB}HAVE_STRCSPN${ac_eC}1${ac_eD}
CEOF
  sed -f conftest.frag conftest.in > conftest.out
  rm -f conftest.in
  mv conftest.out conftest.in

  cat > conftest.frag <<CEOF
${ac_dA}HAVE_STRDUP${ac_dB}HAVE_STRDUP${ac_dC}1${ac_dD}
${ac_uA}HAVE_STRDUP${ac_uB}HAVE_STRDUP${ac_uC}1${ac_uD}
${ac_eA}HAVE_STRDUP${ac_eB}HAVE_STRDUP${ac_eC}1${ac_eD}
${ac_dA}HAVE_STRERROR${ac_dB}HAVE_STRERROR${ac_dC}1${ac_dD}
${ac_uA}HAVE_STRERROR${ac_uB}HAVE_STRERROR${ac_uC}1${ac_uD}
${ac_eA}HAVE_STRERROR${ac_eB}HAVE_STRERROR${ac_eC}1${ac_eD}
${ac_dA}HAVE_STRSPN${ac_dB}HAVE_STRSPN${ac_dC}1${ac_dD}
${ac_uA}HAVE_STRSPN${ac_uB}HAVE_STRSPN${ac_uC}1${ac_uD}
${ac_eA}HAVE_STRSPN${ac_eB}HAVE_STRSPN${ac_eC}1${ac_eD}
${ac_dA}HAVE_STRTOL${ac_dB}HAVE_STRTOL${ac_dC}1${ac_dD}
${ac_uA}HAVE_STRTOL${ac_uB}HAVE_STRTOL${ac_uC}1${ac_uD}
${ac_eA}HAVE_STRTOL${ac_eB}HAVE_STRTOL${ac_eC}1${ac_eD}
CEOF
  sed -f conftest.frag conftest.in > conftest.out
  rm -f conftest.in
  mv conftest.out conftest.in

  cat > conftest.frag <<CEOF
${ac_dA}HAVE_INET_ATON${ac_dB}HAVE_INET_ATON${ac_dC}1${ac_dD}
${ac_uA}HAVE_INET_ATON${ac_uB}HAVE_INET_ATON${ac_uC}1${ac_uD}
${ac_eA}HAVE_INET_ATON${ac_eB}HAVE_INET_ATON${ac_eC}1${ac_eD}
${ac_dA}HAVE_GETHOSTBYNAME${ac_dB}HAVE_GETHOSTBYNAME${ac_dC}1${ac_dD}
${ac_uA}HAVE_GETHOSTBYNAME${ac_uB}HAVE_GETHOSTBYNAME${ac_uC}1${ac_uD}
${ac_eA}HAVE_GETHOSTBYNAME${ac_eB}HAVE_GETHOSTBYNAME${ac_eC}1${ac_eD}
${ac_dA}HAVE_LIBDL${ac_dB}HAVE_LIBDL${ac_dC}1${ac_dD}
${ac_uA}HAVE_LIBDL${ac_uB}HAVE_LIBDL${ac_uC}1${ac_uD}
${ac_eA}HAVE_LIBDL${ac_eB}HAVE_LIBDL${ac_eC}1${ac_eD}
${ac_dA}ALLOW_ENV_CONFIG${ac_dB}ALLOW_ENV_CONFIG${ac_dC}1${ac_dD}
${ac_uA}ALLOW_ENV_CONFIG${ac_uB}ALLOW_ENV_CONFIG${ac_uC}1${ac_uD}
${ac_eA}ALLOW_ENV_CONFIG${ac_eB}ALLOW_ENV_CONFIG${ac_eC}1${ac_eD}
CEOF
  sed -f conftest.frag conftest.in > conftest.out
  rm -f conftest.in
  mv conftest.out conftest.in

  cat > conftest.frag <<CEOF
${ac_dA}ALLOW_MSG_OUTPUT${ac_dB}ALLOW_MSG_OUTPUT${ac_dC}1${ac_dD}
${ac_uA}ALLOW_MSG_OUTPUT${ac_uB}ALLOW_MSG_OUTPUT${ac_uC}1${ac_uD}
${ac_eA}ALLOW_MSG_OUTPUT${ac_eB}ALLOW_MSG_OUTPUT${ac_eC}1${ac_eD}
${ac_dA}HOSTNAMES${ac_dB}HOSTNAMES${ac_dC}1${ac_dD}
${ac_uA}HOSTNAMES${ac_uB}HOSTNAMES${ac_uC}1${ac_uD}
${ac_eA}HOSTNAMES${ac_eB}HOSTNAMES${ac_eC}1${ac_eD}
${ac_dA}SELECT_SIGNATURE${ac_dB}SELECT_SIGNATURE${ac_dC}int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout${ac_dD}
${ac_uA}SELECT_SIGNATURE${ac_uB}SELECT_SIGNATURE${ac_uC}int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout${ac_uD}
${ac_eA}SELECT_SIGNATURE${ac_eB}SELECT_SIGNATURE${ac_eC}int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout${ac_eD}
${ac_dA}CONNECT_SIGNATURE${ac_dB}CONNECT_SIGNATURE${ac_dC}int __fd, const struct sockaddr_in * __addr, socklen_t __len${ac_dD}
${ac_uA}CONNECT_SIGNATURE${ac_uB}CONNECT_SIGNATURE${ac_uC}int __fd, const struct sockaddr_in * __addr, socklen_t __len${ac_uD}
${ac_eA}CONNECT_SIGNATURE${ac_eB}CONNECT_SIGNATURE${ac_eC}int __fd, const struct sockaddr_in * __addr, socklen_t __len${ac_eD}
CEOF
  sed -f conftest.frag conftest.in > conftest.out
  rm -f conftest.in
  mv conftest.out conftest.in

  cat > conftest.frag <<CEOF
${ac_dA}CONNECT_SOCKARG${ac_dB}CONNECT_SOCKARG${ac_dC}struct sockaddr_in *${ac_dD}
${ac_uA}CONNECT_SOCKARG${ac_uB}CONNECT_SOCKARG${ac_uC}struct sockaddr_in *${ac_uD}
${ac_eA}CONNECT_SOCKARG${ac_eB}CONNECT_SOCKARG${ac_eC}struct sockaddr_in *${ac_eD}
${ac_dA}CLOSE_SIGNATURE${ac_dB}CLOSE_SIGNATURE${ac_dC}int fd${ac_dD}
${ac_uA}CLOSE_SIGNATURE${ac_uB}CLOSE_SIGNATURE${ac_uC}int fd${ac_uD}
${ac_eA}CLOSE_SIGNATURE${ac_eB}CLOSE_SIGNATURE${ac_eC}int fd${ac_eD}
${ac_dA}POLL_SIGNATURE${ac_dB}POLL_SIGNATURE${ac_dC}struct pollfd *ufds, unsigned long nfds, int timeout${ac_dD}
${ac_uA}POLL_SIGNATURE${ac_uB}POLL_SIGNATURE${ac_uC}struct pollfd *ufds, unsigned long nfds, int timeout${ac_uD}
${ac_eA}POLL_SIGNATURE${ac_eB}POLL_SIGNATURE${ac_eC}struct pollfd *ufds, unsigned long nfds, int timeout${ac_eD}
s%^[ 	]*#[ 	]*undef[ 	][ 	]*[a-zA-Z_][a-zA-Z_0-9]*%/* & */%
CEOF
  sed -f conftest.frag conftest.in > conftest.out
  rm -f conftest.in
  mv conftest.out conftest.in

  rm -f conftest.frag conftest.h
  echo "/* $ac_file.  Generated automatically by configure.  */" > conftest.h
  cat conftest.in >> conftest.h
  rm -f conftest.in
  if cmp -s $ac_file conftest.h 2>/dev/null; then
    echo "$ac_file is unchanged"
    rm -f conftest.h
  else
    # Remove last slash and all that follows it.  Not all systems have dirname.
      ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
      if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
      # The file is in a subdirectory.
      test ! -d "$ac_dir" && mkdir "$ac_dir"
    fi
    rm -f $ac_file
    mv conftest.h $ac_file
  fi
fi; done



exit 0




#! /bin/sh

# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.59.
# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
#
# Copyright (C) 2003 Free Software Foundation, Inc.
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## --------------------- ##
## M4sh Initialization.  ##
## --------------------- ##

# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
  set -o posix
fi
DUALCASE=1; export DUALCASE # for MKS sh

# Support unset when possible.
if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
  as_unset=unset
else
  as_unset=false
fi


# Work around bugs in pre-3.0 UWIN ksh.
$as_unset ENV MAIL MAILPATH
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
for as_var in \
  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
  LC_TELEPHONE LC_TIME
do
  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
    eval $as_var=C; export $as_var
  else
    $as_unset $as_var
  fi
done

# Required to use basename.
if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi


# Name of the executable.
as_me=`$as_basename "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)$' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
  	  /^X\/\(\/\/\)$/{ s//\1/; q; }
  	  /^X\/\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`


# PATH needs CR, and LINENO needs CR and PATH.
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  echo "#! /bin/sh" >conf$$.sh
  echo  "exit 0"   >>conf$$.sh
  chmod +x conf$$.sh
  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
    PATH_SEPARATOR=';'
  else
    PATH_SEPARATOR=:
  fi
  rm -f conf$$.sh
fi


  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
  # Find who we are.  Look in the path if we contain no path at all
  # relative or not.
  case $0 in
    *[\\/]* ) as_myself=$0 ;;
    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
done

       ;;
  esac
  # We did not find ourselves, most probably we were run as `sh COMMAND'
  # in which case we are not to be found in the path.
  if test "x$as_myself" = x; then
    as_myself=$0
  fi
  if test ! -f "$as_myself"; then
    { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2
   { (exit 1); exit 1; }; }
  fi
  case $CONFIG_SHELL in
  '')
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for as_base in sh bash ksh sh5; do
	 case $as_dir in
	 /*)
	   if ("$as_dir/$as_base" -c '
  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
	     $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
	     $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
	     CONFIG_SHELL=$as_dir/$as_base
	     export CONFIG_SHELL
	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
	   fi;;
	 esac
       done
done
;;
  esac

  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
  # uniformly replaced by the line number.  The first 'sed' inserts a
  # line-number line before each line; the second 'sed' does the real
  # work.  The second script uses 'N' to pair each line-number line
  # with the numbered line, and appends trailing '-' during
  # substitution so that $LINENO is not a special case at line end.
  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
  sed '=' <$as_myself |
    sed '
      N
      s,$,-,
      : loop
      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
      t loop
      s,-$,,
      s,^['$as_cr_digits']*\n,,
    ' >$as_me.lineno &&
  chmod +x $as_me.lineno ||
    { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
   { (exit 1); exit 1; }; }

  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensible to this).
  . ./$as_me.lineno
  # Exit status is that of the last command.
  exit
}


case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
  *c*,-n*) ECHO_N= ECHO_C='
' ECHO_T='	' ;;
  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
esac

if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

rm -f conf$$ conf$$.exe conf$$.file
echo >conf$$.file
if ln -s conf$$.file conf$$ 2>/dev/null; then
  # We could just check for DJGPP; but this test a) works b) is more generic
  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
  if test -f conf$$.exe; then
    # Don't use ln at all; we don't have any links
    as_ln_s='cp -p'
  else
    as_ln_s='ln -s'
  fi
elif ln conf$$.file conf$$ 2>/dev/null; then
  as_ln_s=ln
else
  as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.file

if mkdir -p . 2>/dev/null; then
  as_mkdir_p=:
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi

as_executable_p="test -f"

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


# IFS
# We need space, tab and new line, in precisely that order.
as_nl='
'
IFS=" 	$as_nl"

# CDPATH.
$as_unset CDPATH


# Name of the host.
# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
# so uname gets run too.
ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`

exec 6>&1

#
# Initializations.
#
ac_default_prefix=/usr/local
ac_config_libobj_dir=.
cross_compiling=no
subdirs=
MFLAGS=
MAKEFLAGS=
SHELL=${CONFIG_SHELL-/bin/sh}

# Maximum number of lines to put in a shell here document.
# This variable seems obsolete.  It should probably be removed, and
# only ac_max_sed_lines should be used.
: ${ac_max_here_lines=38}

# Identity of this package.
PACKAGE_NAME=
PACKAGE_TARNAME=
PACKAGE_VERSION=
PACKAGE_STRING=
PACKAGE_BUGREPORT=

ac_unique_file="saveme.c"
ac_default_prefix=/usr
# Factoring default headers for most tests.
ac_includes_default="\
#include <stdio.h>
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# if HAVE_STDLIB_H
#  include <stdlib.h>
# endif
#endif
#if HAVE_STRING_H
# if !STDC_HEADERS && HAVE_MEMORY_H
#  include <memory.h>
# endif
# include <string.h>
#endif
#if HAVE_STRINGS_H
# include <strings.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#else
# if HAVE_STDINT_H
#  include <stdint.h>
# endif
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif"

ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA LN_S CPP EGREP DEADPOOL_O FIND TAIL SPECIALLIBS LIBOBJS LTLIBOBJS'
ac_subst_files=''

# Initialize some variables set by options.
ac_init_help=
ac_init_version=false
# The variables have the same names as the options, with
# dashes changed to underlines.
cache_file=/dev/null
cache_file=./config.cache
exec_prefix=NONE
host=NONE
no_create=
nonopt=NONE
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
target=NONE
verbose=
x_includes=NONE
x_libraries=NONE

# Installation directory options.
# These are left unexpanded so users can "make install exec_prefix=/foo"
# and all the variables that are supposed to be based on exec_prefix
# by default will actually change.
# Use braces instead of parens because sh, perl, etc. also accept them.
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datadir='${prefix}/share'
sysconfdir='${prefix}/etc'

includedir='${prefix}/include'
oldincludedir='/usr/include'
infodir='${prefix}/info'
mandir='${prefix}/man'

# Initialize some other variables.
subdirs=
MFLAGS= MAKEFLAGS=
SHELL=${CONFIG_SHELL-/bin/sh}
# Maximum number of lines to put in a shell here document.
ac_max_here_lines=12

ac_prev=
for ac_option
do

  # If the previous option needs an argument, assign it.
  if test -n "$ac_prev"; then
    eval "$ac_prev=\$ac_option"
    ac_prev=
    continue
  fi

  ac_optarg=`expr "x$ac_option" : 'x[^=]*=\(.*\)'`
  -*=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) ac_optarg= ;;
  esac

  # Accept the important Cygnus configure options, so we can diagnose typos.

  case $ac_option in

  -bindir | --bindir | --bindi | --bind | --bin | --bi)
    ac_prev=bindir ;;
  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
    bindir=$ac_optarg ;;

  -build | --build | --buil | --bui | --bu)
    ac_prev=build_alias ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build_alias=$ac_optarg ;;

  -cache-file | --cache-file | --cache-fil | --cache-fi \
  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    ac_prev=cache_file ;;
  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
    cache_file=$ac_optarg ;;

  --config-cache | -C)
    cache_file=config.cache ;;

  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
    ac_prev=datadir ;;
  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
  | --da=*)
    datadir=$ac_optarg ;;

  -disable-* | --disable-*)
    ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
   { (exit 1); exit 1; }; }
    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
    eval "enable_$ac_feature=no" ;;

  -enable-* | --enable-*)
    ac_feature=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
   { (exit 1); exit 1; }; }
    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
    case $ac_option in
      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
      *) ac_optarg=yes ;;
    esac
    eval "enable_$ac_feature='$ac_optarg'" ;;

  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
  | --exec | --exe | --ex)
    ac_prev=exec_prefix ;;
  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
  | --exec=* | --exe=* | --ex=*)
    exec_prefix=$ac_optarg ;;

  -gas | --gas | --ga | --g)
    # Obsolete; use --with-gas.
    with_gas=yes ;;

  -help | --help | --hel | --he | -h)
    ac_init_help=long ;;
  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
    ac_init_help=recursive ;;
  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
    ac_init_help=short ;;
Configuration:
  --cache-file=FILE       cache test results in FILE
  --help                  print this message
  --no-create             do not create output files
  --quiet, --silent       do not print \`checking...' messages
  --version               print the version of autoconf that created configure
Directory and file names:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [same as prefix]
  --bindir=DIR            user executables in DIR [EPREFIX/bin]
  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
  --datadir=DIR           read-only architecture-independent data in DIR
                          [PREFIX/share]
  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
                          [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
  --includedir=DIR        C header files in DIR [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
  --infodir=DIR           info documentation in DIR [PREFIX/info]
  --mandir=DIR            man documentation in DIR [PREFIX/man]
  --srcdir=DIR            find the sources in DIR [configure dir or ..]
  --program-prefix=PREFIX prepend PREFIX to installed program names
  --program-suffix=SUFFIX append SUFFIX to installed program names
  --program-transform-name=PROGRAM
                          run sed PROGRAM on installed program names
EOF
    cat << EOF
Host type:
  --build=BUILD           configure for building on BUILD [BUILD=HOST]
  --host=HOST             configure for HOST [guessed]
  --target=TARGET         configure for TARGET [TARGET=HOST]
Features and packages:
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --x-includes=DIR        X include files are in DIR
  --x-libraries=DIR       X library files are in DIR
EOF
    if test -n "$ac_help"; then
      echo "--enable and --with options recognized:$ac_help"
    fi
    exit 0 ;;

  -host | --host | --hos | --ho)
    ac_prev=host_alias ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host_alias=$ac_optarg ;;

  -includedir | --includedir | --includedi | --included | --include \
  | --includ | --inclu | --incl | --inc)
    ac_prev=includedir ;;
  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
  | --includ=* | --inclu=* | --incl=* | --inc=*)
    includedir=$ac_optarg ;;

  -infodir | --infodir | --infodi | --infod | --info | --inf)
    ac_prev=infodir ;;
  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
    infodir=$ac_optarg ;;

  -libdir | --libdir | --libdi | --libd)
    ac_prev=libdir ;;
  -libdir=* | --libdir=* | --libdi=* | --libd=*)
    libdir=$ac_optarg ;;

  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
  | --libexe | --libex | --libe)
    ac_prev=libexecdir ;;
  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
  | --libexe=* | --libex=* | --libe=*)
    libexecdir=$ac_optarg ;;

  -localstatedir | --localstatedir | --localstatedi | --localstated \
  | --localstate | --localstat | --localsta | --localst \
  | --locals | --local | --loca | --loc | --lo)
    ac_prev=localstatedir ;;
  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
    localstatedir=$ac_optarg ;;

  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
    ac_prev=mandir ;;
  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
    mandir=$ac_optarg ;;

  -nfp | --nfp | --nf)
    # Obsolete; use --without-fp.
    with_fp=no ;;

  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c | -n)
    no_create=yes ;;

  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
    no_recursion=yes ;;

  | --oldin | --oldi | --old | --ol | --o)
    ac_prev=oldincludedir ;;
  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
    oldincludedir=$ac_optarg ;;

  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    ac_prev=prefix ;;
  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    prefix=$ac_optarg ;;

  -program-prefix | --program-prefix | --program-prefi | --program-pref \
  | --program-pre | --program-pr | --program-p)
    ac_prev=program_prefix ;;
  -program-prefix=* | --program-prefix=* | --program-prefi=* \
  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
    program_prefix=$ac_optarg ;;

  -program-suffix | --program-suffix | --program-suffi | --program-suff \
  | --program-suf | --program-su | --program-s)
    ac_prev=program_suffix ;;
  -program-suffix=* | --program-suffix=* | --program-suffi=* \
  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
    program_suffix=$ac_optarg ;;

  -program-transform-name | --program-transform-name \
  | --program-transform-nam | --program-transform-na \
  | --program-transform-n | --program-transform- \
  | --program-transform | --program-transfor \

  | --program-transform-n=* | --program-transform-=* \
  | --program-transform=* | --program-transfor=* \
  | --program-transfo=* | --program-transf=* \
  | --program-trans=* | --program-tran=* \
  | --progr-tra=* | --program-tr=* | --program-t=*)
    program_transform_name=$ac_optarg ;;

  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil)
    silent=yes ;;

  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
    ac_prev=sbindir ;;
  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
  | --sbi=* | --sb=*)
    sbindir=$ac_optarg ;;

  -sharedstatedir | --sharedstatedir | --sharedstatedi \
  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
  | --sharedst | --shareds | --shared | --share | --shar \
  | --sha | --sh)
    ac_prev=sharedstatedir ;;
  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
  | --sha=* | --sh=*)
    sharedstatedir=$ac_optarg ;;

  -site | --site | --sit)
    ac_prev=site ;;
  -site=* | --site=* | --sit=*)
    site=$ac_optarg ;;

  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    ac_prev=srcdir ;;
  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    srcdir=$ac_optarg ;;

  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
  | --syscon | --sysco | --sysc | --sys | --sy)
    ac_prev=sysconfdir ;;
  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
    sysconfdir=$ac_optarg ;;

  -target | --target | --targe | --targ | --tar | --ta | --t)
    ac_prev=target_alias ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target_alias=$ac_optarg ;;

  -v | -verbose | --verbose | --verbos | --verbo | --verb)
    verbose=yes ;;

  -version | --version | --versio | --versi | --vers | -V)
    ac_init_version=: ;;
    exit 0 ;;

  -with-* | --with-*)
    ac_package=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid package name: $ac_package" >&2
   { (exit 1); exit 1; }; }
    ac_package=`echo $ac_package| sed 's/-/_/g'`
    case $ac_option in
      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
      *) ac_optarg=yes ;;
    esac
    eval "with_$ac_package='$ac_optarg'" ;;

  -without-* | --without-*)
    ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid package name: $ac_package" >&2
   { (exit 1); exit 1; }; }
    ac_package=`echo $ac_package | sed 's/-/_/g'`
    eval "with_$ac_package=no" ;;

  --x)
    # Obsolete; use --with-x.
    with_x=yes ;;

  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
  | --x-incl | --x-inc | --x-in | --x-i)
    ac_prev=x_includes ;;
  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
    x_includes=$ac_optarg ;;

  -x-libraries | --x-libraries | --x-librarie | --x-librari \
  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
    ac_prev=x_libraries ;;
  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
    x_libraries=$ac_optarg ;;

  -*) { echo "$as_me: error: unrecognized option: $ac_option
Try \`$0 --help' for more information." >&2
   { (exit 1); exit 1; }; }
    ;;

  *=*)
    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
    # Reject names that are not valid shell variable names.
    expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
   { (exit 1); exit 1; }; }
    ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
    eval "$ac_envvar='$ac_optarg'"
    export $ac_envvar ;;

  *)
    # FIXME: should be removed in autoconf 3.0.
    echo "$as_me: WARNING: you should use --build, --host, --target" >&2
    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
      echo "$as_me: WARNING: invalid host type: $ac_option" >&2
    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
    fi
    nonopt="$ac_option"
    ;;

  esac
done

if test -n "$ac_prev"; then
  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
  { echo "$as_me: error: missing argument to $ac_option" >&2
   { (exit 1); exit 1; }; }
trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15

# File descriptor usage:
# 0 standard input
# 1 file creation
# 2 errors and warnings
# 3 some systems may open it to /dev/tty
# 4 used on the Kubota Titan
# 6 checking for... messages and results
# 5 compiler messages saved in config.log
if test "$silent" = yes; then
  exec 6>/dev/null
else
  exec 6>&1
fi
exec 5>./config.log

# Be sure to have absolute paths.
for ac_var in exec_prefix prefix
do
  eval ac_val=$`echo $ac_var`
  case $ac_val in
    [\\/$]* | ?:[\\/]* | NONE | '' ) ;;
    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
   { (exit 1); exit 1; }; };;
  esac
done

# Be sure to have absolute paths.
for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
	      localstatedir libdir includedir oldincludedir infodir mandir
for ac_arg
do
  eval ac_val=$`echo $ac_var`
  case $ac_val in
    [\\/$]* | ?:[\\/]* ) ;;
    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
   { (exit 1); exit 1; }; };;
  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
  esac
done

# There might be people who depend on the old broken behavior: `$host'
# used to hold the argument of --host etc.
# FIXME: To remove some day.
build=$build_alias
host=$host_alias
target=$target_alias

# FIXME: To remove some day.
if test "x$host_alias" != x; then
  if test "x$build_alias" = x; then
    cross_compiling=maybe
    echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
    If a cross compiler is detected then cross compile mode will be used." >&2
  elif test "x$build_alias" != "x$host_alias"; then
    cross_compiling=yes
  fi
fi

ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-

test "$silent" = yes && exec 6>/dev/null

# A filename unique to this package, relative to the directory that
# configure is in, which we can look for to find out if srcdir is correct.
ac_unique_file=saveme.c

# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  ac_srcdir_defaulted=yes
  # Try the directory containing this script, then its parent.
  ac_confdir=`(dirname "$0") 2>/dev/null ||
$as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$0" : 'X\(//\)[^/]' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$0" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
  srcdir=$ac_confdir
  if test ! -r $srcdir/$ac_unique_file; then
    srcdir=..
  fi
else
  ac_srcdir_defaulted=no
fi
if test ! -r $srcdir/$ac_unique_file; then
  if test "$ac_srcdir_defaulted" = yes; then
    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $ac_confdir or .." >&2
   { (exit 1); exit 1; }; }
  else
    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
   { (exit 1); exit 1; }; }
  fi
fi
(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
  { echo "$as_me: error: sources are in $srcdir, but \`cd $srcdir' does not work" >&2
   { (exit 1); exit 1; }; }
srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
ac_env_build_alias_set=${build_alias+set}
ac_env_build_alias_value=$build_alias
ac_cv_env_build_alias_set=${build_alias+set}
ac_cv_env_build_alias_value=$build_alias
ac_env_host_alias_set=${host_alias+set}
ac_env_host_alias_value=$host_alias
ac_cv_env_host_alias_set=${host_alias+set}
ac_cv_env_host_alias_value=$host_alias
ac_env_target_alias_set=${target_alias+set}
ac_env_target_alias_value=$target_alias
ac_cv_env_target_alias_set=${target_alias+set}
ac_cv_env_target_alias_value=$target_alias
ac_env_CC_set=${CC+set}
ac_env_CC_value=$CC
ac_cv_env_CC_set=${CC+set}
ac_cv_env_CC_value=$CC
ac_env_CFLAGS_set=${CFLAGS+set}
ac_env_CFLAGS_value=$CFLAGS
ac_cv_env_CFLAGS_set=${CFLAGS+set}
ac_cv_env_CFLAGS_value=$CFLAGS
ac_env_LDFLAGS_set=${LDFLAGS+set}
ac_env_LDFLAGS_value=$LDFLAGS
ac_cv_env_LDFLAGS_set=${LDFLAGS+set}
ac_cv_env_LDFLAGS_value=$LDFLAGS
ac_env_CPPFLAGS_set=${CPPFLAGS+set}
ac_env_CPPFLAGS_value=$CPPFLAGS
ac_cv_env_CPPFLAGS_set=${CPPFLAGS+set}
ac_cv_env_CPPFLAGS_value=$CPPFLAGS
ac_env_CPP_set=${CPP+set}
ac_env_CPP_value=$CPP
ac_cv_env_CPP_set=${CPP+set}
ac_cv_env_CPP_value=$CPP

#
# Report the --help message.
#
if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
\`configure' configures this package to adapt to many kinds of systems.

Usage: $0 [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print \`checking...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for \`--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or \`..']

_ACEOF

  cat <<_ACEOF
Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
			  [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
			  [PREFIX]

By default, \`make install' will install all the files in
\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
an installation prefix other than \`$ac_default_prefix' using \`--prefix',
for instance \`--prefix=\$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR           user executables [EPREFIX/bin]
  --sbindir=DIR          system admin executables [EPREFIX/sbin]
  --libexecdir=DIR       program executables [EPREFIX/libexec]
  --datadir=DIR          read-only architecture-independent data [PREFIX/share]
  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR   modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]
  --libdir=DIR           object code libraries [EPREFIX/lib]
  --includedir=DIR       C header files [PREFIX/include]
  --oldincludedir=DIR    C header files for non-gcc [/usr/include]
  --infodir=DIR          info documentation [PREFIX/info]
  --mandir=DIR           man documentation [PREFIX/man]
_ACEOF

  cat <<\_ACEOF

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
_ACEOF
fi

if test -n "$ac_init_help"; then

  cat <<\_ACEOF

Optional Features:
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-socksdns       force dns lookups to use tcp
  --disable-tordns         don't override name lookup calls to use SOCKS
  --disable-debug         disable ALL error messages from tsocks
  --enable-oldmethod      use the old method to override connect
  --enable-hostnames      enable hostname lookups for socks servers
  --disable-envconf       do not allow TSOCKS_CONF_FILE to specify configuration file

Optional Packages:
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --with-conf=<file>      location of configuration file (/etc/tsocks.conf default)

Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  CPPFLAGS    C/C++ preprocessor flags, e.g. -I<include dir> if you have
              headers in a nonstandard directory <include dir>
  CPP         C preprocessor

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

_ACEOF
fi

if test "$ac_init_help" = "recursive"; then
  # If there are subdirs, report their specific --help.
  ac_popdir=`pwd`
  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
    test -d $ac_dir || continue
    ac_builddir=.

if test "$ac_dir" != .; then
  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
  # A "../" for each directory in $ac_dir_suffix.
  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
else
  ac_dir_suffix= ac_top_builddir=
fi

case $srcdir in
  .)  # No --srcdir option.  We are building in place.
    ac_srcdir=.
    if test -z "$ac_top_builddir"; then
       ac_top_srcdir=.
    else
       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
    fi ;;
  [\\/]* | ?:[\\/]* )  # Absolute path.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir ;;
  *) # Relative path.
    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_builddir$srcdir ;;
esac

# Do not use `cd foo && pwd` to compute absolute paths, because
# the directories may not exist.
case `pwd` in
.) ac_abs_builddir="$ac_dir";;
*)
  case "$ac_dir" in
  .) ac_abs_builddir=`pwd`;;
  [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
  *) ac_abs_builddir=`pwd`/"$ac_dir";;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_builddir=${ac_top_builddir}.;;
*)
  case ${ac_top_builddir}. in
  .) ac_abs_top_builddir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
  *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_srcdir=$ac_srcdir;;
*)
  case $ac_srcdir in
  .) ac_abs_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
  *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_srcdir=$ac_top_srcdir;;
*)
  case $ac_top_srcdir in
  .) ac_abs_top_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
  *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
  esac;;
esac

    cd $ac_dir
    # Check for guested configure; otherwise get Cygnus style configure.
    if test -f $ac_srcdir/configure.gnu; then
      echo
      $SHELL $ac_srcdir/configure.gnu  --help=recursive
    elif test -f $ac_srcdir/configure; then
      echo
      $SHELL $ac_srcdir/configure  --help=recursive
    elif test -f $ac_srcdir/configure.ac ||
	   test -f $ac_srcdir/configure.in; then
      echo
      $ac_configure --help
    else
      echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
    fi
    cd "$ac_popdir"
  done
fi

test -n "$ac_init_help" && exit 0
if $ac_init_version; then
  cat <<\_ACEOF

Copyright (C) 2003 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
  exit 0
fi
exec 5>config.log
cat >&5 <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by $as_me, which was
generated by GNU Autoconf 2.59.  Invocation command line was

  $ $0 $@

_ACEOF
{
cat <<_ASUNAME
## --------- ##
## Platform. ##
## --------- ##

hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
uname -m = `(uname -m) 2>/dev/null || echo unknown`
uname -r = `(uname -r) 2>/dev/null || echo unknown`
uname -s = `(uname -s) 2>/dev/null || echo unknown`
uname -v = `(uname -v) 2>/dev/null || echo unknown`

/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`

/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
hostinfo               = `(hostinfo) 2>/dev/null               || echo unknown`
/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`

_ASUNAME

as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  echo "PATH: $as_dir"
done

} >&5

cat >&5 <<_ACEOF


## ----------- ##
## Core tests. ##
## ----------- ##

_ACEOF


# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
# Strip out --silent because we don't want to record it for future runs.
# Also quote any args containing shell meta-characters.
# Make two passes to allow for proper duplicate-argument suppression.
ac_configure_args=
ac_configure_args0=
ac_configure_args1=
ac_sep=
ac_must_keep_next=false
for ac_pass in 1 2
do
  for ac_arg
  do
    case $ac_arg in
    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
    | -silent | --silent | --silen | --sile | --sil)
      continue ;;
    *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
      ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    case $ac_pass in
    1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
    2)
      ac_configure_args1="$ac_configure_args1 '$ac_arg'"
      if test $ac_must_keep_next = true; then
	ac_must_keep_next=false # Got value, back to normal.
      else
	case $ac_arg in
	  *=* | --config-cache | -C | -disable-* | --disable-* \
	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
	  | -with-* | --with-* | -without-* | --without-* | --x)
	    case "$ac_configure_args0 " in
	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
	    esac
	    ;;
	  -* ) ac_must_keep_next=true ;;
	esac
      fi
      ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
      # Get rid of the leading space.
      ac_sep=" "
      ;;
    esac
  done
done
$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }

# When interrupted or exit'd, cleanup temporary files, and complete
# config.log.  We remove comments because anyway the quotes in there
# would cause problems or look ugly.
# WARNING: Be sure not to use single quotes in there, as some shells,
# such as our DU 5.0 friend, will then `close' the trap.
trap 'exit_status=$?
  # Save into config.log some information that might help in debugging.
  {
    echo

    cat <<\_ASBOX
## ---------------- ##
## Cache variables. ##
## ---------------- ##
_ASBOX
    echo
    # The following way of writing the cache mishandles newlines in values,
{
  (set) 2>&1 |
    case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
    *ac_space=\ *)
      sed -n \
	"s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
      ;;
    *)
      sed -n \
	"s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
      ;;
    esac;
}
    echo

    cat <<\_ASBOX
## ----------------- ##
## Output variables. ##
## ----------------- ##
_ASBOX
    echo
    for ac_var in $ac_subst_vars
    do
      eval ac_val=$`echo $ac_var`
      echo "$ac_var='"'"'$ac_val'"'"'"
    done | sort
    echo

    if test -n "$ac_subst_files"; then
      cat <<\_ASBOX
## ------------- ##
## Output files. ##
## ------------- ##
_ASBOX
      echo
      for ac_var in $ac_subst_files
      do
	eval ac_val=$`echo $ac_var`
	echo "$ac_var='"'"'$ac_val'"'"'"
      done | sort
      echo
    fi

    if test -s confdefs.h; then
      cat <<\_ASBOX
## ----------- ##
## confdefs.h. ##
## ----------- ##
_ASBOX
      echo
      sed "/^$/d" confdefs.h | sort
      echo
    fi
    test "$ac_signal" != 0 &&
      echo "$as_me: caught signal $ac_signal"
    echo "$as_me: exit $exit_status"
  } >&5
  rm -f core *.core &&
  rm -rf conftest* confdefs* conf$$* $ac_clean_files &&
    exit $exit_status
     ' 0
for ac_signal in 1 2 13 15; do
  trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
done
ac_signal=0

# confdefs.h avoids OS command line length limits that DEFS can exceed.
rm -rf conftest* confdefs.h
# AIX cpp loses on an empty file, so make sure it contains at least a newline.
echo >confdefs.h

# Predefined preprocessor variables.

cat >>confdefs.h <<_ACEOF
#define PACKAGE_NAME "$PACKAGE_NAME"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PACKAGE_VERSION "$PACKAGE_VERSION"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PACKAGE_STRING "$PACKAGE_STRING"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
_ACEOF


# Let the site file select an alternate cache file if it wants to.
# Prefer explicitly selected file to automatically selected ones.
if test -z "$CONFIG_SITE"; then
  if test "x$prefix" != xNONE; then
    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
  else
    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
  fi
fi
for ac_site_file in $CONFIG_SITE; do
  if test -r "$ac_site_file"; then
    { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
echo "$as_me: loading site script $ac_site_file" >&6;}
    sed 's/^/| /' "$ac_site_file" >&5
    . "$ac_site_file"
  fi
done

if test -r "$cache_file"; then
  # Some versions of bash will fail to source /dev/null (special
  # files actually), so we avoid doing that.
  if test -f "$cache_file"; then
    { echo "$as_me:$LINENO: loading cache $cache_file" >&5
echo "$as_me: loading cache $cache_file" >&6;}
    case $cache_file in
      [\\/]* | ?:[\\/]* ) . $cache_file;;
      *)                      . ./$cache_file;;
    esac
  fi
else
  { echo "$as_me:$LINENO: creating cache $cache_file" >&5
echo "$as_me: creating cache $cache_file" >&6;}
  >$cache_file
fi

# Check that the precious variables saved in the cache have kept the same
# value.
ac_cache_corrupted=false
for ac_var in `(set) 2>&1 |
	       sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_old_val="\$ac_cv_env_${ac_var}_value"
  eval ac_new_val="\$ac_env_${ac_var}_value"
  case $ac_old_set,$ac_new_set in
    set,)
      { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,set)
      { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,);;
    *)
      if test "x$ac_old_val" != "x$ac_new_val"; then
	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
echo "$as_me:   former value:  $ac_old_val" >&2;}
	{ echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
echo "$as_me:   current value: $ac_new_val" >&2;}
	ac_cache_corrupted=:
      fi;;
  esac
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
    case $ac_new_val in
    *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    case " $ac_configure_args " in
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
    esac
  fi
done
if $ac_cache_corrupted; then
  { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
echo "$as_me: error: changes in the environment can compromise the build" >&2;}
  { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu













fi






          ac_config_headers="$ac_config_headers config.h"




test "$libdir" = "\${exec_prefix}/lib" && libdir="/lib"

# Check whether --enable-socksdns or --disable-socksdns was given.
if test "${enable_socksdns+set}" = set; then
  enableval="$enable_socksdns"
  :
fi

fi;
# Check whether --enable-tordns or --disable-tordns was given.
if test "${enable_tordns+set}" = set; then
  enableval="$enable_tordns"

fi;
# Check whether --enable-debug or --disable-debug was given.
if test "${enable_debug+set}" = set; then
  enableval="$enable_debug"
  :
fi

fi;
# Check whether --enable-oldmethod or --disable-oldmethod was given.
if test "${enable_oldmethod+set}" = set; then
  enableval="$enable_oldmethod"
  :
fi

fi;
# Check whether --enable-hostnames or --disable-hostnames was given.
if test "${enable_hostnames+set}" = set; then
  enableval="$enable_hostnames"
  :
fi

fi;
# Check whether --enable-envconf or --disable-envconf was given.
if test "${enable_envconf+set}" = set; then
  enableval="$enable_envconf"

fi;

# Check whether --with-conf or --without-conf was given.
if test "${with_conf+set}" = set; then
  withval="$with_conf"

if test "${withval}" = "yes" ; then
  { { echo "$as_me:$LINENO: error: \"--with-conf requires the location of the configuration file as an argument\"" >&5
echo "$as_me: error: \"--with-conf requires the location of the configuration file as an argument\"" >&2;}
   { (exit 1); exit 1; }; }
else
  cat >>confdefs.h <<_ACEOF
#define CONF_FILE "${withval}"
_ACEOF

fi

else
  
  cat >> confdefs.h <<EOF
#define CONF_FILE "/etc/tsocks.conf"
EOF

  cat >>confdefs.h <<_ACEOF
#define CONF_FILE "/etc/tsocks.conf"
_ACEOF

fi

fi;


ac_aux_dir=
for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
  if test -f $ac_dir/install-sh; then

    break
  elif test -f $ac_dir/install.sh; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install.sh -c"
    break
  elif test -f $ac_dir/shtool; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/shtool install -c"
    break
  fi
done
if test -z "$ac_aux_dir"; then
  { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&5
echo "$as_me: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&2;}
   { (exit 1); exit 1; }; }
fi
ac_config_guess="$SHELL $ac_aux_dir/config.guess"
ac_config_sub="$SHELL $ac_aux_dir/config.sub"
ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.

# Make sure we can run config.sub.
$ac_config_sub sun4 >/dev/null 2>&1 ||
  { { echo "$as_me:$LINENO: error: cannot run $ac_config_sub" >&5
echo "$as_me: error: cannot run $ac_config_sub" >&2;}
   { (exit 1); exit 1; }; }

echo "$as_me:$LINENO: checking build system type" >&5
echo $ECHO_N "checking build system type... $ECHO_C" >&6
if test "${ac_cv_build+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_build_alias=$build_alias
test -z "$ac_cv_build_alias" &&
  ac_cv_build_alias=`$ac_config_guess`
test -z "$ac_cv_build_alias" &&
  { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
   { (exit 1); exit 1; }; }
ac_cv_build=`$ac_config_sub $ac_cv_build_alias` ||
  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_build_alias failed" >&5
echo "$as_me: error: $ac_config_sub $ac_cv_build_alias failed" >&2;}
   { (exit 1); exit 1; }; }

fi
echo "$as_me:$LINENO: result: $ac_cv_build" >&5
echo "${ECHO_T}$ac_cv_build" >&6
build=$ac_cv_build
build_cpu=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
build_vendor=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
build_os=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`


echo "$as_me:$LINENO: checking host system type" >&5
echo $ECHO_N "checking host system type... $ECHO_C" >&6
if test "${ac_cv_host+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_host_alias=$host_alias
test -z "$ac_cv_host_alias" &&
  ac_cv_host_alias=$ac_cv_build_alias
ac_cv_host=`$ac_config_sub $ac_cv_host_alias` ||
  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_host_alias failed" >&5
echo "$as_me: error: $ac_config_sub $ac_cv_host_alias failed" >&2;}
   { (exit 1); exit 1; }; }

fi
echo "$as_me:$LINENO: result: $ac_cv_host" >&5
echo "${ECHO_T}$ac_cv_host" >&6
host=$ac_cv_host
host_cpu=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
host_vendor=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
host_os=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`

host=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $host_alias`
host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
echo "$ac_t""$host" 1>&6


ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  CC=$ac_ct_CC
else
  CC="$ac_cv_prog_CC"
fi

if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
set dummy ${ac_tool_prefix}cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  CC=$ac_ct_CC
else
  CC="$ac_cv_prog_CC"
fi

fi
if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_CC="cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
    shift
    ac_cv_prog_CC="$@"
  fi
fi
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  for ac_prog in cl
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

    test -n "$CC" && break
  done
fi
if test -z "$CC"; then
  ac_ct_CC=$CC
  for ac_prog in cl
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  test -n "$ac_ct_CC" && break
done

  CC=$ac_ct_CC
fi
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross

fi

#line 772 "configure"
#include "confdefs.h"

test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
See \`config.log' for more details." >&5
echo "$as_me: error: no acceptable C compiler found in \$PATH
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }

# Provide some information about the compiler.
echo "$as_me:$LINENO:" \
     "checking for C compiler version" >&5
ac_compiler=`set X $ac_compile; echo $2`
{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
  (eval $ac_compiler --version </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
  (eval $ac_compiler -v </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
  (eval $ac_compiler -V </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files a.out a.exe b.out"
# Try to create an executable without -o first, disregard a.out.
# It will help us diagnose broken compilers, and finding out an intuition
# of exeext.
echo "$as_me:$LINENO: checking for C compiler default output file name" >&5
echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6
ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
  (eval $ac_link_default) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  # Find the output, starting from the most likely.  This scheme is
# not robust to junk in `.', hence go to wildcards (a.*) only as a last
# resort.

# Be careful to initialize this variable, since it used to be cached.
# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
ac_cv_exeext=
# b.out is created by i960 compilers.
for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out
do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj )
	;;
    conftest.$ac_ext )
	# This is the source file.
	;;
    [ab].out )
	# We found the default executable, but exeext='' is most
	# certainly right.
	break;;
    *.* )
	ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	# FIXME: I believe we export ac_cv_exeext for Libtool,
	# but it would be cool to find out if it's true.  Does anybody
	# maintain Libtool? --akim.
	export ac_cv_exeext
	break;;
    * )
	break;;
  esac
done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
  ac_cv_prog_cc_works=no
fi
rm -fr conftest*
ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross

{ { echo "$as_me:$LINENO: error: C compiler cannot create executables
See \`config.log' for more details." >&5
echo "$as_me: error: C compiler cannot create executables
See \`config.log' for more details." >&2;}
   { (exit 77); exit 77; }; }
fi

ac_exeext=$ac_cv_exeext
echo "$as_me:$LINENO: result: $ac_file" >&5
echo "${ECHO_T}$ac_file" >&6

# Check the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
echo "$as_me:$LINENO: checking whether the C compiler works" >&5
echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6
# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
# If not cross compiling, check that we can run a simple program.
if test "$cross_compiling" != yes; then
  if { ac_try='./$ac_file'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
    cross_compiling=no
  else
    if test "$cross_compiling" = maybe; then
	cross_compiling=yes
    else
	{ { echo "$as_me:$LINENO: error: cannot run C compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run C compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
    fi
  fi
fi
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
cross_compiling=$ac_cv_prog_cc_cross

rm -f a.out a.exe conftest$ac_cv_exeext b.out
ac_clean_files=$ac_clean_files_save
# Check the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
echo "$as_me:$LINENO: result: $cross_compiling" >&5
echo "${ECHO_T}$cross_compiling" >&6

echo "$as_me:$LINENO: checking for suffix of executables" >&5
echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  # If both `conftest.exe' and `conftest' are `present' (well, observable)
# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
# work properly (i.e., refer to `conftest.exe'), while it won't with
# `rm'.
for ac_file in conftest.exe conftest conftest.*; do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	  export ac_cv_exeext
	  break;;
    * ) break;;
  esac
done
else
  { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

rm -f conftest$ac_cv_exeext
echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
echo "${ECHO_T}$ac_cv_exeext" >&6

rm -f conftest.$ac_ext
EXEEXT=$ac_cv_exeext
ac_exeext=$EXEEXT
echo "$as_me:$LINENO: checking for suffix of object files" >&5
echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
if test "${ac_cv_objext+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.o conftest.obj
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;;
    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
       break;;
  esac
done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
fi

{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute suffix of object files: cannot compile
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

rm -f conftest.$ac_cv_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
echo "${ECHO_T}$ac_cv_objext" >&6
OBJEXT=$ac_cv_objext
ac_objext=$OBJEXT
echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
if test "${ac_cv_c_compiler_gnu+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_compiler_gnu=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_compiler_gnu=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
GCC=`test $ac_compiler_gnu = yes && echo yes`
ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
CFLAGS="-g"
echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
if test "${ac_cv_prog_cc_g+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cc_g=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
rm -f conftest*

ac_cv_prog_cc_g=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
if test "$ac_test_CFLAGS" = set; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"

    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
if test "${ac_cv_prog_cc_stdc+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_prog_cc_stdc=no
ac_save_CC=$CC
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}

/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
   function prototypes and stuff, but not '\xHH' hex character constants.
   These don't provoke an error unfortunately, instead are silently treated
   as 'x'.  The following induces an error, until -std1 is added to get
   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
   array size at least.  It's necessary to write '\x00'==0 to get something
   that's true only with -std1.  */
int osf4_cc_array ['\x00' == 0 ? 1 : -1];

int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
int
main ()
{
return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
  ;
  return 0;
}
_ACEOF
# Don't try gcc -ansi; that turns off useful extensions and
# breaks some systems' header files.
# AIX			-qlanglvl=ansi
# Ultrix and OSF/1	-std1
# HP-UX 10.20 and later	-Ae
# HP-UX older versions	-Aa -D_HPUX_SOURCE
# SVR4			-Xc -D__EXTENSIONS__
for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cc_stdc=$ac_arg
break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext
done
rm -f conftest.$ac_ext conftest.$ac_objext
CC=$ac_save_CC

fi

case "x$ac_cv_prog_cc_stdc" in
  x|xno)
    echo "$as_me:$LINENO: result: none needed" >&5
echo "${ECHO_T}none needed" >&6 ;;
  *)
    echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
    CC="$CC $ac_cv_prog_cc_stdc" ;;
esac

# Some people use a C++ compiler to compile C.  Since we use `exit',
# in C++ we need to declare it.  In case someone uses the same compiler
# for both compiling C and C++ we need to have the C++ compiler decide
# the declaration of exit, since it's the most demanding environment.
cat >conftest.$ac_ext <<_ACEOF
#ifndef __cplusplus
  choke me
#endif
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  for ac_declaration in \
   '' \
   'extern "C" void std::exit (int) throw (); using std::exit;' \
   'extern "C" void std::exit (int); using std::exit;' \
   'extern "C" void exit (int) throw ();' \
   'extern "C" void exit (int);' \
   'void exit (int);'
do
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_declaration
#include <stdlib.h>
int
main ()
{
exit (42);
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

continue
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_declaration
int
main ()
{
exit (42);
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
done
rm -f conftest*
if test -n "$ac_declaration"; then
  echo '#ifdef __cplusplus' >>confdefs.h
  echo $ac_declaration      >>confdefs.h
  echo '#endif'             >>confdefs.h
fi

else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

# Find a good install program.  We prefer a C program (faster),
# so one script is as good as another.  But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AmigaOS /C/install, which installs bootblocks on floppy discs
# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# OS/2's system install, which has a completely different semantic
# ./install, which can be erroneously created by make from ./install.sh.
echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6
if test -z "$INSTALL"; then
if test "${ac_cv_path_install+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  # Account for people who put trailing slashes in PATH elements.
case $as_dir/ in
  ./ | .// | /cC/* | \
  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
  /usr/ucb/* ) ;;
  *)
    # OSF1 and SCO ODT 3.0 have their own names for install.
    # Don't use installbsd from OSF since it installs stuff as root
    # by default.
    for ac_prog in ginstall scoinst install; do
      for ac_exec_ext in '' $ac_executable_extensions; do
	if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
	  if test $ac_prog = install &&
	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # AIX install.  It has an incompatible calling convention.
	    :
	  elif test $ac_prog = install &&
	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # program-specific install script used by HP pwplus--don't use.
	    :
	  else
	    ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
	    break 3
	  fi
	fi
      done
    done
    ;;
esac
done


fi
  if test "${ac_cv_path_install+set}" = set; then
    INSTALL=$ac_cv_path_install
  else
    # As a last resort, use the slow shell script.  We don't cache a
    # path for INSTALL within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the path is relative.
    INSTALL=$ac_install_sh
  fi
fi
echo "$as_me:$LINENO: result: $INSTALL" >&5
echo "${ECHO_T}$INSTALL" >&6

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'

test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'

echo "$as_me:$LINENO: checking whether ln -s works" >&5
echo $ECHO_N "checking whether ln -s works... $ECHO_C" >&6
LN_S=$as_ln_s
if test "$LN_S" = "ln -s"; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
if ln -s X conftestdata 2>/dev/null
then
  rm -f conftestdata
  ac_cv_prog_LN_S="ln -s"
else
  echo "$as_me:$LINENO: result: no, using $LN_S" >&5
echo "${ECHO_T}no, using $LN_S" >&6
fi
LN_S="$ac_cv_prog_LN_S"
if test "$ac_cv_prog_LN_S" = "ln -s"; then
  echo "$ac_t""yes" 1>&6
else
  echo "$ac_t""no" 1>&6
fi


echo "$as_me:$LINENO: checking if the C compiler accepts -Wall" >&5
echo $ECHO_N "checking if the C compiler accepts -Wall... $ECHO_C" >&6
OLDCFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall"

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5


   CFLAGS="$OLDCFLAGS"
   echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi
if test -z "$CPP"; then
  if test "${ac_cv_prog_CPP+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
      # Double quotes because CPP needs to be expanded
    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  rm -rf conftest*
  CPP="${CC-cc} -E -traditional-cpp"
  cat > conftest.$ac_ext <<EOF
#line 1011 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1017: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  CPP=/lib/cpp
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  break
fi

    done
    ac_cv_prog_CPP=$CPP

fi
  CPP=$ac_cv_prog_CPP
else
  ac_cv_prog_CPP=$CPP
fi
echo "$as_me:$LINENO: result: $CPP" >&5
echo "${ECHO_T}$CPP" >&6
ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  :
else
  { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details." >&5
echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


echo "$as_me:$LINENO: checking for egrep" >&5
echo $ECHO_N "checking for egrep... $ECHO_C" >&6
if test "${ac_cv_prog_egrep+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if echo a | (grep -E '(a|b)') >/dev/null 2>&1
    then ac_cv_prog_egrep='grep -E'
    else ac_cv_prog_egrep='egrep'
    fi
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
echo "${ECHO_T}$ac_cv_prog_egrep" >&6
 EGREP=$ac_cv_prog_egrep


echo "$as_me:$LINENO: checking for ANSI C header files" >&5
echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
if test "${ac_cv_header_stdc+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_header_stdc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_header_stdc=no
  ac_cv_header_stdc=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <string.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "memchr" >/dev/null 2>&1; then
  :
else
  rm -rf conftest*
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdlib.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "free" >/dev/null 2>&1; then
  :
else
  rm -rf conftest*
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
  if test "$cross_compiling" = yes; then
  :
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ctype.h>
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
		   (('a' <= (c) && (c) <= 'i') \
		     || ('j' <= (c) && (c) <= 'r') \
		     || ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif

#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int
main ()
{
  int i;
  for (i = 0; i < 256; i++)
    if (XOR (islower (i), ISLOWER (i))
	|| toupper (i) != TOUPPER (i))
      exit(2);
  exit (0);
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
ac_cv_header_stdc=no
fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi

fi
fi
echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
echo "${ECHO_T}$ac_cv_header_stdc" >&6
if test $ac_cv_header_stdc = yes; then

cat >>confdefs.h <<\_ACEOF
#define STDC_HEADERS 1
_ACEOF

fi


# On IRIX 5.3, sys/types and inttypes.h are conflicting.
echo $ac_n "checking for dlfcn.h""... $ac_c" 1>&6
echo "configure:1165: checking for dlfcn.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1170 "configure"
#include "confdefs.h"
#include <dlfcn.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1175: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  :
else
  echo "$ac_t""no" 1>&6
{ echo "configure: error: "dlfcn.h not found"" 1>&2; exit 1; }
fi









for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
		  inttypes.h stdint.h unistd.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_header" >&5
echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default

#include <$ac_header>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_Header=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_Header=no"
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
if test `eval echo '${'$as_ac_Header'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done


if test "${ac_cv_header_dlfcn_h+set}" = set; then
  echo "$as_me:$LINENO: checking for dlfcn.h" >&5
echo $ECHO_N "checking for dlfcn.h... $ECHO_C" >&6
if test "${ac_cv_header_dlfcn_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_dlfcn_h" >&5
echo "${ECHO_T}$ac_cv_header_dlfcn_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking dlfcn.h usability" >&5
echo $ECHO_N "checking dlfcn.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <dlfcn.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking dlfcn.h presence" >&5
echo $ECHO_N "checking dlfcn.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <dlfcn.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: dlfcn.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: dlfcn.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: dlfcn.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: dlfcn.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: dlfcn.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: dlfcn.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: dlfcn.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: dlfcn.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: dlfcn.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: dlfcn.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: dlfcn.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: dlfcn.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: dlfcn.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: dlfcn.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: dlfcn.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: dlfcn.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------------ ##
## Report this to the AC_PACKAGE_NAME lists.  ##
## ------------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for dlfcn.h" >&5
echo $ECHO_N "checking for dlfcn.h... $ECHO_C" >&6
if test "${ac_cv_header_dlfcn_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_dlfcn_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_dlfcn_h" >&5
echo "${ECHO_T}$ac_cv_header_dlfcn_h" >&6

fi
if test $ac_cv_header_dlfcn_h = yes; then
  echo "$ac_t""yes" 1>&6
  :
else
  { { echo "$as_me:$LINENO: error: \"dlfcn.h not found\"" >&5
echo "$as_me: error: \"dlfcn.h not found\"" >&2;}
   { (exit 1); exit 1; }; }
fi



if test "${ac_cv_header_sys_socket_h+set}" = set; then
  echo "$as_me:$LINENO: checking for sys/socket.h" >&5
echo $ECHO_N "checking for sys/socket.h... $ECHO_C" >&6
if test "${ac_cv_header_sys_socket_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sys_socket_h" >&5
echo "${ECHO_T}$ac_cv_header_sys_socket_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking sys/socket.h usability" >&5
echo $ECHO_N "checking sys/socket.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <sys/socket.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking sys/socket.h presence" >&5
echo $ECHO_N "checking sys/socket.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <sys/socket.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
#line 1240 "configure"
#include "confdefs.h"
#include <arpa/inet.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1245: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: sys/socket.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: sys/socket.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/socket.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: sys/socket.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: sys/socket.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: sys/socket.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/socket.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: sys/socket.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/socket.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: sys/socket.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/socket.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: sys/socket.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/socket.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: sys/socket.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/socket.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: sys/socket.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------------ ##
## Report this to the AC_PACKAGE_NAME lists.  ##
## ------------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for sys/socket.h" >&5
echo $ECHO_N "checking for sys/socket.h... $ECHO_C" >&6
if test "${ac_cv_header_sys_socket_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_sys_socket_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sys_socket_h" >&5
echo "${ECHO_T}$ac_cv_header_sys_socket_h" >&6

fi
if test $ac_cv_header_sys_socket_h = yes; then
  :
else
  { { echo "$as_me:$LINENO: error: \"sys/socket.h not found\"" >&5
echo "$as_me: error: \"sys/socket.h not found\"" >&2;}
   { (exit 1); exit 1; }; }
fi



if test "${ac_cv_header_arpa_inet_h+set}" = set; then
  echo "$as_me:$LINENO: checking for arpa/inet.h" >&5
echo $ECHO_N "checking for arpa/inet.h... $ECHO_C" >&6
if test "${ac_cv_header_arpa_inet_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_arpa_inet_h" >&5
echo "${ECHO_T}$ac_cv_header_arpa_inet_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking arpa/inet.h usability" >&5
echo $ECHO_N "checking arpa/inet.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <arpa/inet.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking arpa/inet.h presence" >&5
echo $ECHO_N "checking arpa/inet.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <arpa/inet.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
#line 1275 "configure"
#include "confdefs.h"
#include <fcntl.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1280: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: arpa/inet.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: arpa/inet.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: arpa/inet.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: arpa/inet.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: arpa/inet.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: arpa/inet.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: arpa/inet.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: arpa/inet.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: arpa/inet.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: arpa/inet.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: arpa/inet.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: arpa/inet.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: arpa/inet.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: arpa/inet.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: arpa/inet.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: arpa/inet.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------------ ##
## Report this to the AC_PACKAGE_NAME lists.  ##
## ------------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for arpa/inet.h" >&5
echo $ECHO_N "checking for arpa/inet.h... $ECHO_C" >&6
if test "${ac_cv_header_arpa_inet_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_arpa_inet_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_arpa_inet_h" >&5
echo "${ECHO_T}$ac_cv_header_arpa_inet_h" >&6

fi
if test $ac_cv_header_arpa_inet_h = yes; then
  :
else
  { { echo "$as_me:$LINENO: error: \"arpa/inet.h not found\"" >&5
echo "$as_me: error: \"arpa/inet.h not found\"" >&2;}
   { (exit 1); exit 1; }; }
fi



if test "${ac_cv_header_fcntl_h+set}" = set; then
  echo "$as_me:$LINENO: checking for fcntl.h" >&5
echo $ECHO_N "checking for fcntl.h... $ECHO_C" >&6
if test "${ac_cv_header_fcntl_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_fcntl_h" >&5
echo "${ECHO_T}$ac_cv_header_fcntl_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking fcntl.h usability" >&5
echo $ECHO_N "checking fcntl.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <fcntl.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking fcntl.h presence" >&5
echo $ECHO_N "checking fcntl.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <fcntl.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: fcntl.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: fcntl.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: fcntl.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: fcntl.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: fcntl.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: fcntl.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: fcntl.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: fcntl.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: fcntl.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: fcntl.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: fcntl.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: fcntl.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: fcntl.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: fcntl.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: fcntl.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: fcntl.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------------ ##
## Report this to the AC_PACKAGE_NAME lists.  ##
## ------------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for fcntl.h" >&5
echo $ECHO_N "checking for fcntl.h... $ECHO_C" >&6
if test "${ac_cv_header_fcntl_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_fcntl_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_fcntl_h" >&5
echo "${ECHO_T}$ac_cv_header_fcntl_h" >&6

fi
if test $ac_cv_header_fcntl_h = yes; then
  :
else
  { { echo "$as_me:$LINENO: error: \"fcntl.h not found\"" >&5
echo "$as_me: error: \"fcntl.h not found\"" >&2;}
   { (exit 1); exit 1; }; }
fi



if test "${ac_cv_header_sys_poll_h+set}" = set; then
  echo "$as_me:$LINENO: checking for sys/poll.h" >&5
echo $ECHO_N "checking for sys/poll.h... $ECHO_C" >&6
if test "${ac_cv_header_sys_poll_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sys_poll_h" >&5
echo "${ECHO_T}$ac_cv_header_sys_poll_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking sys/poll.h usability" >&5
echo $ECHO_N "checking sys/poll.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <sys/poll.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking sys/poll.h presence" >&5
echo $ECHO_N "checking sys/poll.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <sys/poll.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: sys/poll.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: sys/poll.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/poll.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: sys/poll.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: sys/poll.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: sys/poll.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/poll.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: sys/poll.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/poll.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: sys/poll.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/poll.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: sys/poll.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/poll.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: sys/poll.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/poll.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: sys/poll.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------------ ##
## Report this to the AC_PACKAGE_NAME lists.  ##
## ------------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for sys/poll.h" >&5
echo $ECHO_N "checking for sys/poll.h... $ECHO_C" >&6
if test "${ac_cv_header_sys_poll_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_sys_poll_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sys_poll_h" >&5
echo "${ECHO_T}$ac_cv_header_sys_poll_h" >&6

fi
if test $ac_cv_header_sys_poll_h = yes; then
  echo "$ac_t""yes" 1>&6
  :
else
  { { echo "$as_me:$LINENO: error: \"sys/poll.h not found\"" >&5
echo "$as_me: error: \"sys/poll.h not found\"" >&2;}
   { (exit 1); exit 1; }; }
fi



if test "${ac_cv_header_sys_mman_h+set}" = set; then
  echo "$as_me:$LINENO: checking for sys/mman.h" >&5
echo $ECHO_N "checking for sys/mman.h... $ECHO_C" >&6
if test "${ac_cv_header_sys_mman_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sys_mman_h" >&5
echo "${ECHO_T}$ac_cv_header_sys_mman_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking sys/mman.h usability" >&5
echo $ECHO_N "checking sys/mman.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <sys/mman.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking sys/mman.h presence" >&5
echo $ECHO_N "checking sys/mman.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <sys/mman.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: sys/mman.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: sys/mman.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/mman.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: sys/mman.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: sys/mman.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: sys/mman.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/mman.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: sys/mman.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/mman.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: sys/mman.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/mman.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: sys/mman.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: sys/mman.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: sys/mman.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------------ ##
## Report this to the AC_PACKAGE_NAME lists.  ##
## ------------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for sys/mman.h" >&5
echo $ECHO_N "checking for sys/mman.h... $ECHO_C" >&6
if test "${ac_cv_header_sys_mman_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_sys_mman_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sys_mman_h" >&5
echo "${ECHO_T}$ac_cv_header_sys_mman_h" >&6

for ac_hdr in unistd.h
do
ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
echo "configure:1342: checking for $ac_hdr" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1347 "configure"
#include "confdefs.h"
#include <$ac_hdr>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1352: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
if test $ac_cv_header_sys_mman_h = yes; then
  :
else
  { { echo "$as_me:$LINENO: error: \"sys/mman.h not found\"" >&5
echo "$as_me: error: \"sys/mman.h not found\"" >&2;}
   { (exit 1); exit 1; }; }
fi




for ac_header in unistd.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo "$as_me:$LINENO: checking for $ac_header" >&5
echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking $ac_header usability" >&5
echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <$ac_header>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking $ac_header presence" >&5
echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <$ac_header>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------------ ##
## Report this to the AC_PACKAGE_NAME lists.  ##
## ------------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for $ac_header" >&5
echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  eval "$as_ac_Header=\$ac_header_preproc"
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6

fi
if test `eval echo '${'$as_ac_Header'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done











for ac_func in strcspn strdup strerror strspn strtol mmap strcasecmp \
   strncasecmp strtol
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char $ac_func();

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else
  { { echo "$as_me:$LINENO: error: \"Required function not found\"" >&5
echo "$as_me: error: \"Required function not found\"" >&2;}
   { (exit 1); exit 1; }; }
fi
done




    ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

    echo "$as_me:$LINENO: checking how many arguments gethostbyname_r() takes" >&5
echo $ECHO_N "checking how many arguments gethostbyname_r() takes... $ECHO_C" >&6

    if test "${ac_cv_func_which_gethostbyname_r+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else



ac_cv_func_which_gethostbyname_r=unknown

#
# ONE ARGUMENT (sanity check)
#

# This should fail, as there is no variant of gethostbyname_r() that takes
# a single argument. If it actually compiles, then we can assume that
# netdb.h is not declaring the function, and the compiler is thereby
# assuming an implicit prototype. In which case, we're out of luck.
#
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <netdb.h>
int
main ()
{

            char *name = "www.gnu.org";
            (void)gethostbyname_r(name) /* ; */

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_which_gethostbyname_r=no
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext

#
# SIX ARGUMENTS
# (e.g. Linux)
#

if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <netdb.h>
int
main ()
{

            char *name = "www.gnu.org";
            struct hostent ret, *retp;
            char buf[1024];
            int buflen = 1024;
            int my_h_errno;
            (void)gethostbyname_r(name, &ret, buf, buflen, &retp, &my_h_errno) /* ; */

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_which_gethostbyname_r=six
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext

fi

#
# FIVE ARGUMENTS
# (e.g. Solaris)
#

if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <netdb.h>
int
main ()
{

            char *name = "www.gnu.org";
            struct hostent ret;
            char buf[1024];
            int buflen = 1024;
            int my_h_errno;
            (void)gethostbyname_r(name, &ret, buf, buflen, &my_h_errno) /* ; */

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_which_gethostbyname_r=five
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext

fi

#
# THREE ARGUMENTS
# (e.g. AIX, HP-UX, Tru64)
#

if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <netdb.h>
int
main ()
{

            char *name = "www.gnu.org";
            struct hostent ret;
            struct hostent_data data;
            (void)gethostbyname_r(name, &ret, &data) /* ; */

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_which_gethostbyname_r=three
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext

fi



fi

case "$ac_cv_func_which_gethostbyname_r" in
    three)
    echo "$as_me:$LINENO: result: three" >&5
echo "${ECHO_T}three" >&6
    cat >>confdefs.h <<\_ACEOF
#define HAVE_FUNC_GETHOSTBYNAME_R_3 1
_ACEOF

    ;;

    five)
    echo "$as_me:$LINENO: result: five" >&5
echo "${ECHO_T}five" >&6
    cat >>confdefs.h <<\_ACEOF
#define HAVE_FUNC_GETHOSTBYNAME_R_5 1
_ACEOF

    ;;

    six)
    echo "$as_me:$LINENO: result: six" >&5
echo "${ECHO_T}six" >&6
    cat >>confdefs.h <<\_ACEOF
#define HAVE_FUNC_GETHOSTBYNAME_R_6 1
_ACEOF

    ;;

    no)
    echo "$as_me:$LINENO: result: cannot find function declaration in netdb.h" >&5
echo "${ECHO_T}cannot find function declaration in netdb.h" >&6
    ;;

    unknown)
    echo "$as_me:$LINENO: result: can't tell" >&5
echo "${ECHO_T}can't tell" >&6
    ;;

    *)
    { { echo "$as_me:$LINENO: error: internal error" >&5
echo "$as_me: error: internal error" >&2;}
   { (exit 1); exit 1; }; }
    ;;
esac

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu




OLDLIBS="${LIBS}"
LIBS=
CONNECTLIB=
for LIB in c socket; do
  as_ac_Lib=`echo "ac_cv_lib_"${LIB}"''_connect" | $as_tr_sh`
echo "$as_me:$LINENO: checking for connect in -l\"${LIB}\"" >&5
echo $ECHO_N "checking for connect in -l\"${LIB}\"... $ECHO_C" >&6
if eval "test \"\${$as_ac_Lib+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-l"${LIB}"  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char connect ();
int
main ()
{
connect ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_Lib=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_Lib=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Lib'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_Lib'}'`" >&6
if test `eval echo '${'$as_ac_Lib'}'` = yes; then

fi
if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  
    CONNECTLIB="${LIB}"
    break

else
  echo "$ac_t""no" 1>&6
fi

done
LIBS="${OLDLIBS} -l${CONNECTLIB}"
if test "${CONNECTLIB}" = ""; then
  { { echo "$as_me:$LINENO: error: 'Could not find library containing connect()'" >&5
echo "$as_me: error: 'Could not find library containing connect()'" >&2;}
   { (exit 1); exit 1; }; }
fi

echo "$as_me:$LINENO: checking for socket" >&5
echo $ECHO_N "checking for socket... $ECHO_C" >&6
if test "${ac_cv_func_socket+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define socket to an innocuous variant, in case <limits.h> declares socket.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define socket innocuous_socket

echo $ac_n "checking for socket""... $ac_c" 1>&6
echo "configure:1490: checking for socket" >&5
if eval "test \"`echo '$''{'ac_cv_func_socket'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1495 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char socket (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char socket();

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef socket

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char socket ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_socket) || defined (__stub___socket)
choke me
#else
char (*f) () = socket;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != socket;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_socket=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_socket=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_socket" >&5
echo "${ECHO_T}$ac_cv_func_socket" >&6
if test $ac_cv_func_socket = yes; then
  :
else
  echo "$ac_t""no" 1>&6


echo "$as_me:$LINENO: checking for socket in -lsocket" >&5
echo $ECHO_N "checking for socket in -lsocket... $ECHO_C" >&6
if test "${ac_cv_lib_socket_socket+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lsocket  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char socket ();
int
main ()
{
socket ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_socket_socket=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_socket_socket=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_socket_socket" >&5
echo "${ECHO_T}$ac_cv_lib_socket_socket" >&6
if test $ac_cv_lib_socket_socket = yes; then
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBSOCKET 1
_ACEOF

  LIBS="-lsocket $LIBS"

else
  { { echo "$as_me:$LINENO: error: \"socket function not found\"" >&5
echo "$as_me: error: \"socket function not found\"" >&2;}
   { (exit 1); exit 1; }; }
fi

fi


echo "$as_me:$LINENO: checking for inet_aton" >&5
echo $ECHO_N "checking for inet_aton... $ECHO_C" >&6
if test "${ac_cv_func_inet_aton+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define inet_aton to an innocuous variant, in case <limits.h> declares inet_aton.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define inet_aton innocuous_inet_aton

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char inet_aton (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char inet_aton();

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef inet_aton

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char inet_aton ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_inet_aton) || defined (__stub___inet_aton)
choke me
#else
char (*f) () = inet_aton;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != inet_aton;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_inet_aton=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_inet_aton=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_inet_aton" >&5
echo "${ECHO_T}$ac_cv_func_inet_aton" >&6
if test $ac_cv_func_inet_aton = yes; then
  cat >>confdefs.h <<\_ACEOF
#define HAVE_INET_ATON 1
_ACEOF

else
  echo "$ac_t""no" 1>&6

  echo "$as_me:$LINENO: checking for inet_addr" >&5
echo $ECHO_N "checking for inet_addr... $ECHO_C" >&6
if test "${ac_cv_func_inet_addr+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define inet_addr to an innocuous variant, in case <limits.h> declares inet_addr.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define inet_addr innocuous_inet_addr

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char inet_addr (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char inet_addr();

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef inet_addr

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char inet_addr ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_inet_addr) || defined (__stub___inet_addr)
choke me
#else
char (*f) () = inet_addr;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != inet_addr;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_inet_addr=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_inet_addr=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_inet_addr" >&5
echo "${ECHO_T}$ac_cv_func_inet_addr" >&6
if test $ac_cv_func_inet_addr = yes; then
  cat >>confdefs.h <<\_ACEOF
#define HAVE_INET_ADDR 1
_ACEOF

else
  echo "$ac_t""no" 1>&6

    echo "$as_me:$LINENO: checking for inet_addr in -lnsl" >&5
echo $ECHO_N "checking for inet_addr in -lnsl... $ECHO_C" >&6
if test "${ac_cv_lib_nsl_inet_addr+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lnsl  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
char inet_addr();

int main() {
inet_addr()
; return 0; }
EOF
if { (eval echo configure:1707: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=yes"
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=no"
fi
rm -f conftest*
LIBS="$ac_save_LIBS"

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char inet_addr ();
int
main ()
{
inet_addr ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_nsl_inet_addr=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_nsl_inet_addr=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_nsl_inet_addr" >&5
echo "${ECHO_T}$ac_cv_lib_nsl_inet_addr" >&6
if test $ac_cv_lib_nsl_inet_addr = yes; then
   cat >>confdefs.h <<\_ACEOF
#define HAVE_INET_ADDR 1
_ACEOF

                                   LIBS="${LIBS} -lnsl"
else
  echo "$ac_t""no" 1>&6

		{ { echo "$as_me:$LINENO: error: \"Neither inet_aton or inet_addr present\"" >&5
echo "$as_me: error: \"Neither inet_aton or inet_addr present\"" >&2;}
   { (exit 1); exit 1; }; }
fi

fi

fi


echo "$as_me:$LINENO: checking for gethostbyname" >&5
echo $ECHO_N "checking for gethostbyname... $ECHO_C" >&6
if test "${ac_cv_func_gethostbyname+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define gethostbyname to an innocuous variant, in case <limits.h> declares gethostbyname.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define gethostbyname innocuous_gethostbyname

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char gethostbyname (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char gethostbyname();

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef gethostbyname

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char gethostbyname ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_gethostbyname) || defined (__stub___gethostbyname)
choke me
#else
char (*f) () = gethostbyname;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != gethostbyname;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_gethostbyname=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_gethostbyname=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_gethostbyname" >&5
echo "${ECHO_T}$ac_cv_func_gethostbyname" >&6
if test $ac_cv_func_gethostbyname = yes; then
  cat >>confdefs.h <<\_ACEOF
#define HAVE_GETHOSTBYNAME 1
_ACEOF

else
  echo "$ac_t""no" 1>&6

  echo "$as_me:$LINENO: checking for gethostbyname in -lxnet" >&5
echo $ECHO_N "checking for gethostbyname in -lxnet... $ECHO_C" >&6
if test "${ac_cv_lib_xnet_gethostbyname+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lxnet  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char gethostbyname ();
int
main ()
{
gethostbyname ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_xnet_gethostbyname=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_xnet_gethostbyname=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_xnet_gethostbyname" >&5
echo "${ECHO_T}$ac_cv_lib_xnet_gethostbyname" >&6
if test $ac_cv_lib_xnet_gethostbyname = yes; then
  cat >>confdefs.h <<\_ACEOF
#define HAVE_GETHOSTBYNAME 1
_ACEOF

else
  echo "$ac_t""no" 1>&6

	       { { echo "$as_me:$LINENO: error: \"gethostbyname not found, name lookups in \" \
		      \"tsocks and inspectsocks disabled\"" >&5
echo "$as_me: error: \"gethostbyname not found, name lookups in \" \
		      \"tsocks and inspectsocks disabled\"" >&2;}
   { (exit 1); exit 1; }; }
fi

fi


SIMPLELIBS=${LIBS}
LIBS=


echo "$as_me:$LINENO: checking for dlsym in -ldl" >&5
echo $ECHO_N "checking for dlsym in -ldl... $ECHO_C" >&6
if test "${ac_cv_lib_dl_dlsym+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldl  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char dlsym ();
int
main ()
{
dlsym ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_dl_dlsym=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_dl_dlsym=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlsym" >&5
echo "${ECHO_T}$ac_cv_lib_dl_dlsym" >&6
if test $ac_cv_lib_dl_dlsym = yes; then
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBDL 1
_ACEOF

  LIBS="-ldl $LIBS"

else
  { { echo "$as_me:$LINENO: error: \"libdl is required\"" >&5
echo "$as_me: error: \"libdl is required\"" >&2;}
   { (exit 1); exit 1; }; }
fi


echo "$as_me:$LINENO: checking for RTLD_NEXT from dlfcn.h" >&5
echo $ECHO_N "checking for RTLD_NEXT from dlfcn.h... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

 #include <dlfcn.h>
 #ifdef RTLD_NEXT
	yes
 #endif

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "yes" >/dev/null 2>&1; then

  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6

else

  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
  echo "$as_me:$LINENO: checking for RTLD_NEXT from dlfcn.h with _GNU_SOURCE" >&5
echo $ECHO_N "checking for RTLD_NEXT from dlfcn.h with _GNU_SOURCE... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

   #define _GNU_SOURCE
   #include <dlfcn.h>
   #ifdef RTLD_NEXT
	yes
   #endif

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "yes" >/dev/null 2>&1; then

    echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
    cat >>confdefs.h <<\_ACEOF
#define USE_GNU_SOURCE 1
_ACEOF


  
else

    echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
    cat >>confdefs.h <<\_ACEOF
#define USE_OLD_DLSYM 1
_ACEOF

    oldmethod="yes"

fi
rm -f conftest*


fi
rm -f conftest*


if test "${enable_socksdns}" = "yes"; then
  cat >>confdefs.h <<\_ACEOF
#define USE_SOCKS_DNS 1
_ACEOF

fi

echo "$as_me:$LINENO: checking whether to enable tordns" >&5
echo $ECHO_N "checking whether to enable tordns... $ECHO_C" >&6
if test "x${enable_tordns}" = "x"; then
  cat >>confdefs.h <<\_ACEOF
#define USE_TOR_DNS 1
_ACEOF

  DEADPOOL_O="\${DEADPOOL}.o"
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  DEADPOOL_O=""
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi


if test "x${enable_envconf}" = "x"; then
  cat >>confdefs.h <<\_ACEOF
#define ALLOW_ENV_CONFIG 1
_ACEOF

fi

if test "${enable_oldmethod}" = "yes"; then
  cat >>confdefs.h <<\_ACEOF
#define USE_OLD_DLSYM 1
_ACEOF

  oldmethod="yes"
fi

if test "x${enable_debug}" = "x"; then
  cat >>confdefs.h <<\_ACEOF
#define ALLOW_MSG_OUTPUT 1
_ACEOF

fi

if test "x${enable_hostnames}" = "xyes"; then
  cat >>confdefs.h <<\_ACEOF
#define HOSTNAMES 1
_ACEOF

fi

if test "${enable_socksdns}" = "yes" -a \
        "x${enable_hostnames}" = "xyes" ; then
  { { echo "$as_me:$LINENO: error: \"--enable-socksdns is not valid with --enable-hostnames\"" >&5
echo "$as_me: error: \"--enable-socksdns is not valid with --enable-hostnames\"" >&2;}
   { (exit 1); exit 1; }; }
fi

if test "x${enable_tordns}" = "x" -a \
        "x${enable_hostnames}" = "xyes" ; then
  { { echo "$as_me:$LINENO: error: \"--enable-tordns is not valid with --enable-hostnames\"" >&5
echo "$as_me: error: \"--enable-tordns is not valid with --enable-hostnames\"" >&2;}
   { (exit 1); exit 1; }; }
fi

if test "${oldmethod}" = "yes"; then

      # Extract the first word of "find", so it can be a program name with args.
set dummy find; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_FIND+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$FIND"; then
  ac_cv_prog_FIND="$FIND" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_FIND="find"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
FIND=$ac_cv_prog_FIND
if test -n "$FIND"; then
  echo "$as_me:$LINENO: result: $FIND" >&5
echo "${ECHO_T}$FIND" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  if test "${FIND}" = ""; then
    { { echo "$as_me:$LINENO: error: 'find not found in path'" >&5
echo "$as_me: error: 'find not found in path'" >&2;}
   { (exit 1); exit 1; }; }
  fi

      # Extract the first word of "tail", so it can be a program name with args.
set dummy tail; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_TAIL+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$TAIL"; then
  ac_cv_prog_TAIL="$TAIL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_TAIL="tail"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
TAIL=$ac_cv_prog_TAIL
if test -n "$TAIL"; then
  echo "$as_me:$LINENO: result: $TAIL" >&5
echo "${ECHO_T}$TAIL" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  if test "${TAIL}" = ""; then
    { { echo "$as_me:$LINENO: error: 'tail not found in path'" >&5
echo "$as_me: error: 'tail not found in path'" >&2;}
   { (exit 1); exit 1; }; }
  fi

    echo "$as_me:$LINENO: checking location of lib${CONNECTLIB}.so" >&5
echo $ECHO_N "checking location of lib${CONNECTLIB}.so... $ECHO_C" >&6
  LIBCONNECT=
  for DIR in '/lib' '/usr/lib'; do
    if test "${LIBCONNECT}" = ""; then
      LIBCONNECT=`$FIND $DIR -name "lib${CONNECTLIB}.so.?" 2>/dev/null | $TAIL -1`
    fi
  done

  cat >>confdefs.h <<_ACEOF
#define LIBCONNECT "${LIBCONNECT}"
_ACEOF

  if test "${LIBCONNECT}" = ""; then
     { { echo "$as_me:$LINENO: error: \"not found!\"" >&5
echo "$as_me: error: \"not found!\"" >&2;}
   { (exit 1); exit 1; }; }
  fi

  echo "$as_me:$LINENO: result: $LIBCONNECT" >&5
echo "${ECHO_T}$LIBCONNECT" >&6

    echo "$as_me:$LINENO: checking location of libc.so" >&5
echo $ECHO_N "checking location of libc.so... $ECHO_C" >&6
  LIBC=
  for DIR in '/lib' '/usr/lib'; do
    if test "${LIBC}" = ""; then
      LIBC=`$FIND $DIR -name "libc.so.?" 2>/dev/null | $TAIL -1`
    fi
  done

  cat >>confdefs.h <<_ACEOF
#define LIBC "${LIBC}"
_ACEOF

  if test "${LIBC}" = ""; then
     { { echo "$as_me:$LINENO: error: \"not found!\"" >&5
echo "$as_me: error: \"not found!\"" >&2;}
   { (exit 1); exit 1; }; }
  fi

  echo "$as_me:$LINENO: result: $LIBC" >&5
echo "${ECHO_T}$LIBC" >&6
fi

echo "$as_me:$LINENO: checking for correct select prototype" >&5
echo $ECHO_N "checking for correct select prototype... $ECHO_C" >&6
PROTO=
for testproto in 'int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout'
do
  if test "${PROTO}" = ""; then
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

      #include <sys/time.h>
      #include <sys/types.h>
      #include <unistd.h>
      int select($testproto);
    
int main() {

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  PROTO="$testproto";
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  fi
done
if test "${PROTO}" = ""; then
  { { echo "$as_me:$LINENO: error: \"no match found!\"" >&5
echo "$as_me: error: \"no match found!\"" >&2;}
   { (exit 1); exit 1; }; }
fi
echo "$as_me:$LINENO: result: select(${PROTO})" >&5
echo "${ECHO_T}select(${PROTO})" >&6
cat >>confdefs.h <<_ACEOF
#define SELECT_SIGNATURE ${PROTO}
_ACEOF


echo "$as_me:$LINENO: checking for correct connect prototype" >&5
echo $ECHO_N "checking for correct connect prototype... $ECHO_C" >&6
PROTO=
PROTO1='int __fd, const struct sockaddr * __addr, int len'
PROTO2='int __fd, const struct sockaddr_in * __addr, socklen_t __len'
PROTO3='int __fd, struct sockaddr * __addr, int __len'
PROTO4='int __fd, const struct sockaddr * __addr, socklen_t __len'
for testproto in "${PROTO1}" \
                 "${PROTO2}" \
                 "${PROTO3}" \
                 "${PROTO4}"
do
  if test "${PROTO}" = ""; then
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

      #include <sys/socket.h>
      int connect($testproto);
    
int main() {

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  PROTO="$testproto";
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  fi
done
if test "${PROTO}" = ""; then
  { { echo "$as_me:$LINENO: error: \"no match found!\"" >&5
echo "$as_me: error: \"no match found!\"" >&2;}
   { (exit 1); exit 1; }; }
fi
echo "$as_me:$LINENO: result: connect(${PROTO})" >&5
echo "${ECHO_T}connect(${PROTO})" >&6
cat >>confdefs.h <<_ACEOF
#define CONNECT_SIGNATURE ${PROTO}
_ACEOF


SOCKETARG="struct sockaddr *"
case "${PROTO}" in
   *sockaddr_in*)
      SOCKETARG="struct sockaddr_in *"
      ;;
esac
cat >>confdefs.h <<_ACEOF
#define CONNECT_SOCKARG ${SOCKETARG}
_ACEOF


echo "$as_me:$LINENO: checking for correct close prototype" >&5
echo $ECHO_N "checking for correct close prototype... $ECHO_C" >&6
PROTO=
PROTO1='int fd'
for testproto in "${PROTO1}"
do
  if test "${PROTO}" = ""; then
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

      #include <stdlib.h>
      int close($testproto);
    
int main() {

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  PROTO="$testproto";
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  fi
done
if test "${PROTO}" = ""; then
  { { echo "$as_me:$LINENO: error: \"no match found!\"" >&5
echo "$as_me: error: \"no match found!\"" >&2;}
   { (exit 1); exit 1; }; }
fi
echo "$as_me:$LINENO: result: close(${PROTO})" >&5
echo "${ECHO_T}close(${PROTO})" >&6
cat >>confdefs.h <<_ACEOF
#define CLOSE_SIGNATURE ${PROTO}
_ACEOF


echo "$as_me:$LINENO: checking for correct poll prototype" >&5
echo $ECHO_N "checking for correct poll prototype... $ECHO_C" >&6
PROTO=
for testproto in 'struct pollfd *ufds, unsigned long nfds, int timeout'
do
  if test "${PROTO}" = ""; then
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

      #include <sys/poll.h>
      int poll($testproto);
    
int main() {

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  PROTO="$testproto";
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  fi
done
if test "${PROTO}" = ""; then
  { { echo "$as_me:$LINENO: error: \"no match found!\"" >&5
echo "$as_me: error: \"no match found!\"" >&2;}
   { (exit 1); exit 1; }; }
fi
echo "$as_me:$LINENO: result: poll(${PROTO})" >&5
echo "${ECHO_T}poll(${PROTO})" >&6
cat >>confdefs.h <<_ACEOF
#define POLL_SIGNATURE ${PROTO}
_ACEOF


PROTO="const char *name"
cat >>confdefs.h <<_ACEOF
#define GETHOSTBYNAME_SIGNATURE ${PROTO}
_ACEOF


PROTO="const char *node, const char *service, void *hints, void *res"
cat >>confdefs.h <<_ACEOF
#define GETADDRINFO_SIGNATURE ${PROTO}
_ACEOF


PROTO="const char *name, int af, int flags, int *error_num"
cat >>confdefs.h <<_ACEOF
#define GETIPNODEBYNAME_SIGNATURE ${PROTO}
_ACEOF


SPECIALLIBS=${LIBS}

LIBS=${SIMPLELIBS}

          ac_config_files="$ac_config_files Makefile"
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs, see configure's option --config-cache.
# It is not useful on other systems.  If it contains results you don't
# want to keep, you may remove or edit it.
#
# config.status only pays attention to the cache file if you give it
# the --recheck option to rerun configure.
# the --cache-file=FILE option to use a different cache file; that is
# what configure does when it calls configure scripts in
# subdirectories, so they share the cache.
# Giving --cache-file=/dev/null disables caching, for debugging configure.
# config.status only pays attention to the cache file if you give it the
# --recheck option to rerun configure.
#
# `ac_cv_env_foo' variables (set or unset) will be overridden when
# loading this file, other *unset* `ac_cv_foo' will be assigned the
# following values.

_ACEOF

# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, don't put newlines in cache variables' values.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
{
  (set) 2>&1 |
    case `(ac_space=' '; set | grep ac_space) 2>&1` in
    *ac_space=\ *)
      # `set' does not quote correctly, so add quotes (double-quote
      # substitution turns \\\\ into \\, and sed turns \\ into \).
      sed -n \
	"s/'/'\\\\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
      ;;
    *)
      # `set' quotes correctly as required by POSIX, so do not add quotes.
      sed -n \
	"s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
      ;;
    esac;
} |
  sed '
     t clear
     : clear
     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
     t end
     /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
     : end' >>confcache
if diff $cache_file confcache >/dev/null 2>&1; then :; else
  if test -w $cache_file; then
    test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
    cat confcache >$cache_file
  else
    echo "not updating unwritable cache $cache_file"
  fi
fi
rm -f confcache

trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

# VPATH may cause trouble with some makes, so we remove $(srcdir),
# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
# trailing colons and then remove the whole line if VPATH becomes empty
# (actually we leave an empty line to preserve line numbers).
if test "x$srcdir" = x.; then
  ac_vpsub='/^[	 ]*VPATH[	 ]*=/{
s/:*\$(srcdir):*/:/;
s/:*\${srcdir}:*/:/;
s/:*@srcdir@:*/:/;
s/^\([^=]*=[	 ]*\):*/\1/;
s/:*$//;
s/^[^=]*=[	 ]*$//;
}'
fi

trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15

DEFS=-DHAVE_CONFIG_H

ac_libobjs=
ac_ltlibobjs=
for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
  # 1. Remove the extension, and $U if already installed.
  ac_i=`echo "$ac_i" |
	 sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
  # 2. Add them.
  ac_libobjs="$ac_libobjs $ac_i\$U.$ac_objext"
  ac_ltlibobjs="$ac_ltlibobjs $ac_i"'$U.lo'
done
LIBOBJS=$ac_libobjs

LTLIBOBJS=$ac_ltlibobjs



: ${CONFIG_STATUS=./config.status}
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files $CONFIG_STATUS"
{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
echo "$as_me: creating $CONFIG_STATUS" >&6;}
cat >$CONFIG_STATUS <<_ACEOF
#! $SHELL
# Generated by $as_me.
# Run this file to recreate the current configuration.
# This directory was configured as follows,
# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
#
# $0 $ac_configure_args
#
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.

debug=false
ac_cs_recheck=false
ac_cs_silent=false
SHELL=\${CONFIG_SHELL-$SHELL}
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF
## --------------------- ##
## M4sh Initialization.  ##
## --------------------- ##

# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
  set -o posix
fi
DUALCASE=1; export DUALCASE # for MKS sh

# Support unset when possible.
if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
  as_unset=unset
else
  as_unset=false
fi


# Work around bugs in pre-3.0 UWIN ksh.
$as_unset ENV MAIL MAILPATH
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
for as_var in \
  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
  LC_TELEPHONE LC_TIME
do
  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
    eval $as_var=C; export $as_var
  else
    $as_unset $as_var
  fi
done

# Required to use basename.
if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi


# Name of the executable.
as_me=`$as_basename "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)$' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
  	  /^X\/\(\/\/\)$/{ s//\1/; q; }
  	  /^X\/\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`


# PATH needs CR, and LINENO needs CR and PATH.
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  echo "#! /bin/sh" >conf$$.sh
  echo  "exit 0"   >>conf$$.sh
  chmod +x conf$$.sh
  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
    PATH_SEPARATOR=';'
  else
    PATH_SEPARATOR=:
  fi
  rm -f conf$$.sh
fi


  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
  # Find who we are.  Look in the path if we contain no path at all
  # relative or not.
  case $0 in
    *[\\/]* ) as_myself=$0 ;;
    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
done

       ;;
  esac
  # We did not find ourselves, most probably we were run as `sh COMMAND'
  # in which case we are not to be found in the path.
  if test "x$as_myself" = x; then
    as_myself=$0
  fi
  if test ! -f "$as_myself"; then
    { { echo "$as_me:$LINENO: error: cannot find myself; rerun with an absolute path" >&5
echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
   { (exit 1); exit 1; }; }
  fi
  case $CONFIG_SHELL in
  '')
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for as_base in sh bash ksh sh5; do
	 case $as_dir in
	 /*)
	   if ("$as_dir/$as_base" -c '
  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
	     $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
	     $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
	     CONFIG_SHELL=$as_dir/$as_base
	     export CONFIG_SHELL
	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
	   fi;;
	 esac
       done
done
;;
  esac

  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
  # uniformly replaced by the line number.  The first 'sed' inserts a
  # line-number line before each line; the second 'sed' does the real
  # work.  The second script uses 'N' to pair each line-number line
  # with the numbered line, and appends trailing '-' during
  # substitution so that $LINENO is not a special case at line end.
  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
  sed '=' <$as_myself |
    sed '
      N
      s,$,-,
      : loop
      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
      t loop
      s,-$,,
      s,^['$as_cr_digits']*\n,,
    ' >$as_me.lineno &&
  chmod +x $as_me.lineno ||
    { { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
   { (exit 1); exit 1; }; }

  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensible to this).
  . ./$as_me.lineno
  # Exit status is that of the last command.
  exit
}


case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
  *c*,-n*) ECHO_N= ECHO_C='
' ECHO_T='	' ;;
  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
esac

if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

rm -f conf$$ conf$$.exe conf$$.file
echo >conf$$.file
if ln -s conf$$.file conf$$ 2>/dev/null; then
  # We could just check for DJGPP; but this test a) works b) is more generic
  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
  if test -f conf$$.exe; then
    # Don't use ln at all; we don't have any links
    as_ln_s='cp -p'
  else
    as_ln_s='ln -s'
  fi
elif ln conf$$.file conf$$ 2>/dev/null; then
  as_ln_s=ln
else
  as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.file

if mkdir -p . 2>/dev/null; then
  as_mkdir_p=:
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi

as_executable_p="test -f"

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


# IFS
# We need space, tab and new line, in precisely that order.
as_nl='
'
IFS=" 	$as_nl"

# CDPATH.
$as_unset CDPATH

exec 6>&1

# Open the log real soon, to keep \$[0] and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.  Logging --version etc. is OK.
exec 5>>config.log
{
  echo
  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
## Running $as_me. ##
_ASBOX
} >&5
cat >&5 <<_CSEOF

This file was extended by $as_me, which was
generated by GNU Autoconf 2.59.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
  CONFIG_LINKS    = $CONFIG_LINKS
  CONFIG_COMMANDS = $CONFIG_COMMANDS
  $ $0 $@

_CSEOF
echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&5
echo >&5
_ACEOF

# Files that config.status was made for.
if test -n "$ac_config_files"; then
  echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_headers"; then
  echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_links"; then
  echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_commands"; then
  echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
fi

cat >>$CONFIG_STATUS <<\_ACEOF

ac_cs_usage="\
\`$as_me' instantiates files from templates according to the
current configuration.

Usage: $0 [OPTIONS] [FILE]...

  -h, --help       print this help, then exit
  -V, --version    print version number, then exit
  -q, --quiet      do not print progress messages
  -d, --debug      don't remove temporary files
      --recheck    update $as_me by reconfiguring in the same conditions
  --file=FILE[:TEMPLATE]
		   instantiate the configuration file FILE
  --header=FILE[:TEMPLATE]
		   instantiate the configuration header FILE

Configuration files:
$config_files

Configuration headers:
$config_headers

Report bugs to <bug-autoconf@gnu.org>."
_ACEOF

cat >>$CONFIG_STATUS <<_ACEOF
ac_cs_version="\\
config.status
configured by $0, generated by GNU Autoconf 2.59,
  with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"

Copyright (C) 2003 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."
srcdir=$srcdir
INSTALL="$INSTALL"
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF
# If no file are specified by the user, then we need to provide default
# value.  By we need to know if files were specified by the user.
ac_need_defaults=:
while test $# != 0
do
  case $1 in
  --*=*)
    ac_option=`expr "x$1" : 'x\([^=]*\)='`
    ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
    ac_shift=:
    ;;
  -*)
    ac_option=$1
    ac_optarg=$2
    ac_shift=shift
    ;;
  *) # This is not an option, so the user has probably given explicit
     # arguments.
     ac_option=$1
     ac_need_defaults=false;;
  esac

  case $ac_option in
  # Handling of the options.
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    ac_cs_recheck=: ;;
  --version | --vers* | -V )
    echo "$ac_cs_version"; exit 0 ;;
  --he | --h)
    # Conflict between --help and --header
    { { echo "$as_me:$LINENO: error: ambiguous option: $1
Try \`$0 --help' for more information." >&5
echo "$as_me: error: ambiguous option: $1
Try \`$0 --help' for more information." >&2;}
   { (exit 1); exit 1; }; };;
  --help | --hel | -h )
    echo "$ac_cs_usage"; exit 0 ;;
  --debug | --d* | -d )
    debug=: ;;
  --file | --fil | --fi | --f )
    $ac_shift
    CONFIG_FILES="$CONFIG_FILES $ac_optarg"
    ac_need_defaults=false;;
  --header | --heade | --head | --hea )
    $ac_shift
    CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
    ac_need_defaults=false;;
  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil | --si | --s)
    ac_cs_silent=: ;;

  # This is an error.
  -*) { { echo "$as_me:$LINENO: error: unrecognized option: $1
Try \`$0 --help' for more information." >&5
echo "$as_me: error: unrecognized option: $1
Try \`$0 --help' for more information." >&2;}
   { (exit 1); exit 1; }; } ;;

  *) ac_config_targets="$ac_config_targets $1" ;;

  esac
  shift
done

ac_configure_extra_args=

if $ac_cs_silent; then
  exec 6>/dev/null
  ac_configure_extra_args="$ac_configure_extra_args --silent"
fi

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
if \$ac_cs_recheck; then
  echo "running $SHELL $0 " $ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&6
  exec $SHELL $0 $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
fi

_ACEOF




trap 'rm -fr `echo "Makefile config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
EOF
cat >> $CONFIG_STATUS <<EOF

# Protect against being on the right side of a sed subst in config.status.
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
 s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
$ac_vpsub
$extrasub
s%@SHELL@%$SHELL%g
s%@CFLAGS@%$CFLAGS%g
s%@CPPFLAGS@%$CPPFLAGS%g
s%@CXXFLAGS@%$CXXFLAGS%g
s%@FFLAGS@%$FFLAGS%g
s%@DEFS@%$DEFS%g
s%@LDFLAGS@%$LDFLAGS%g
s%@LIBS@%$LIBS%g
s%@exec_prefix@%$exec_prefix%g
s%@prefix@%$prefix%g
s%@program_transform_name@%$program_transform_name%g
s%@bindir@%$bindir%g
s%@sbindir@%$sbindir%g
s%@libexecdir@%$libexecdir%g
s%@datadir@%$datadir%g
s%@sysconfdir@%$sysconfdir%g
s%@sharedstatedir@%$sharedstatedir%g
s%@localstatedir@%$localstatedir%g
s%@libdir@%$libdir%g
s%@includedir@%$includedir%g
s%@oldincludedir@%$oldincludedir%g
s%@infodir@%$infodir%g
s%@mandir@%$mandir%g
s%@host@%$host%g
s%@host_alias@%$host_alias%g
s%@host_cpu@%$host_cpu%g
s%@host_vendor@%$host_vendor%g
s%@host_os@%$host_os%g
s%@CC@%$CC%g
s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
s%@INSTALL_DATA@%$INSTALL_DATA%g
s%@LN_S@%$LN_S%g
s%@CPP@%$CPP%g
s%@FIND@%$FIND%g
s%@TAIL@%$TAIL%g
s%@SPECIALLIBS@%$SPECIALLIBS%g

cat >>$CONFIG_STATUS <<\_ACEOF
for ac_config_target in $ac_config_targets
do
  case "$ac_config_target" in
  # Handling of arguments.
  "Makefile" ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
  "config.h" ) CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
  *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
   { (exit 1); exit 1; }; };;
  esac
done

# If the user did not use the arguments to specify the items to instantiate,
# then the envvar interface is used.  Set only those that are not.
# We use the long form for the default assignment because of an extremely
# bizarre bug on SunOS 4.1.3.
if $ac_need_defaults; then
  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
fi

# Have a temporary directory for convenience.  Make it in the build tree
# simply because there is no reason to put it here, and in addition,
# creating and moving files from /tmp can sometimes cause problems.
# Create a temporary directory, and hook for its removal unless debugging.
$debug ||
{
  trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
  trap '{ (exit 1); exit 1; }' 1 2 13 15
}

# Create a (secure) tmp directory for tmp files.

{
  tmp=`(umask 077 && mktemp -d -q "./confstatXXXXXX") 2>/dev/null` &&
  test -n "$tmp" && test -d "$tmp"
}  ||
{
  tmp=./confstat$$-$RANDOM
  (umask 077 && mkdir $tmp)
} ||
{
   echo "$me: cannot create a temporary directory in ." >&2
   { (exit 1); exit 1; }
}

_ACEOF

cat >>$CONFIG_STATUS <<_ACEOF

#
# CONFIG_FILES section.
#

# No need to generate the scripts if there are no CONFIG_FILES.
# This happens for instance when ./config.status config.h
if test -n "\$CONFIG_FILES"; then
  # Protect against being on the right side of a sed subst in config.status.
  sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
   s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF
s,@SHELL@,$SHELL,;t t
s,@PATH_SEPARATOR@,$PATH_SEPARATOR,;t t
s,@PACKAGE_NAME@,$PACKAGE_NAME,;t t
s,@PACKAGE_TARNAME@,$PACKAGE_TARNAME,;t t
s,@PACKAGE_VERSION@,$PACKAGE_VERSION,;t t
s,@PACKAGE_STRING@,$PACKAGE_STRING,;t t
s,@PACKAGE_BUGREPORT@,$PACKAGE_BUGREPORT,;t t
s,@exec_prefix@,$exec_prefix,;t t
s,@prefix@,$prefix,;t t
s,@program_transform_name@,$program_transform_name,;t t
s,@bindir@,$bindir,;t t
s,@sbindir@,$sbindir,;t t
s,@libexecdir@,$libexecdir,;t t
s,@datadir@,$datadir,;t t
s,@sysconfdir@,$sysconfdir,;t t
s,@sharedstatedir@,$sharedstatedir,;t t
s,@localstatedir@,$localstatedir,;t t
s,@libdir@,$libdir,;t t
s,@includedir@,$includedir,;t t
s,@oldincludedir@,$oldincludedir,;t t
s,@infodir@,$infodir,;t t
s,@mandir@,$mandir,;t t
s,@build_alias@,$build_alias,;t t
s,@host_alias@,$host_alias,;t t
s,@target_alias@,$target_alias,;t t
s,@DEFS@,$DEFS,;t t
s,@ECHO_C@,$ECHO_C,;t t
s,@ECHO_N@,$ECHO_N,;t t
s,@ECHO_T@,$ECHO_T,;t t
s,@LIBS@,$LIBS,;t t
s,@build@,$build,;t t
s,@build_cpu@,$build_cpu,;t t
s,@build_vendor@,$build_vendor,;t t
s,@build_os@,$build_os,;t t
s,@host@,$host,;t t
s,@host_cpu@,$host_cpu,;t t
s,@host_vendor@,$host_vendor,;t t
s,@host_os@,$host_os,;t t
s,@CC@,$CC,;t t
s,@CFLAGS@,$CFLAGS,;t t
s,@LDFLAGS@,$LDFLAGS,;t t
s,@CPPFLAGS@,$CPPFLAGS,;t t
s,@ac_ct_CC@,$ac_ct_CC,;t t
s,@EXEEXT@,$EXEEXT,;t t
s,@OBJEXT@,$OBJEXT,;t t
s,@INSTALL_PROGRAM@,$INSTALL_PROGRAM,;t t
s,@INSTALL_SCRIPT@,$INSTALL_SCRIPT,;t t
s,@INSTALL_DATA@,$INSTALL_DATA,;t t
s,@LN_S@,$LN_S,;t t
s,@CPP@,$CPP,;t t
s,@EGREP@,$EGREP,;t t
s,@DEADPOOL_O@,$DEADPOOL_O,;t t
s,@FIND@,$FIND,;t t
s,@TAIL@,$TAIL,;t t
s,@SPECIALLIBS@,$SPECIALLIBS,;t t
s,@LIBOBJS@,$LIBOBJS,;t t
s,@LTLIBOBJS@,$LTLIBOBJS,;t t
CEOF
EOF

_ACEOF

  cat >>$CONFIG_STATUS <<\_ACEOF
  # Split the substitutions into bite-sized pieces for seds with
  # small command number limits, like on Digital OSF/1 and HP-UX.
  ac_max_sed_lines=48
  ac_sed_frag=1 # Number of current file.
  ac_beg=1 # First line for current file.
  ac_end=$ac_max_sed_lines # Line after last line for current file.
  ac_more_lines=:
  ac_sed_cmds=
  while $ac_more_lines; do
    if test $ac_beg -gt 1; then
      sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
    else
      sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
    fi
    if test ! -s $tmp/subs.frag; then
      ac_more_lines=false
  else
    if test -z "$ac_sed_cmds"; then
      ac_sed_cmds="sed -f conftest.s$ac_file"
    else
      # The purpose of the label and of the branching condition is to
      # speed up the sed processing (if there are no `@' at all, there
      # is no need to browse any of the substitutions).
      # These are the two extra sed commands mentioned above.
      (echo ':t
  /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
      if test -z "$ac_sed_cmds"; then
	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
      else
	ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
      fi
      ac_sed_frag=`expr $ac_sed_frag + 1`
      ac_beg=$ac_end
      ac_end=`expr $ac_end + $ac_max_sed_lines`
    fi
  done
  if test -z "$ac_sed_cmds"; then
    ac_sed_cmds=cat
  fi
fi # test -n "$CONFIG_FILES"
if test -z "$ac_sed_cmds"; then
  ac_sed_cmds=cat
fi
EOF

cat >> $CONFIG_STATUS <<EOF

_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case $ac_file in
  - | *:- | *:-:* ) # input from stdin
	cat >$tmp/stdin
	ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  * )   ac_file_in=$ac_file.in ;;
  esac

  # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
  ac_dir=`(dirname "$ac_file") 2>/dev/null ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_file" : 'X\(//\)[^/]' \| \
	 X"$ac_file" : 'X\(//\)$' \| \
	 X"$ac_file" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
  { if $as_mkdir_p; then
    mkdir -p "$ac_dir"
  else
    as_dir="$ac_dir"
    as_dirs=
    while test ! -d "$as_dir"; do
      as_dirs="$as_dir $as_dirs"
      as_dir=`(dirname "$as_dir") 2>/dev/null ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    done
    test ! -n "$as_dirs" || mkdir $as_dirs
  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
   { (exit 1); exit 1; }; }; }

  ac_builddir=.

if test "$ac_dir" != .; then
  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
  # A "../" for each directory in $ac_dir_suffix.
  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
else
  ac_dir_suffix= ac_top_builddir=
fi

case $srcdir in
  .)  # No --srcdir option.  We are building in place.
    ac_srcdir=.
    if test -z "$ac_top_builddir"; then
       ac_top_srcdir=.
    else
       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
    fi ;;
  [\\/]* | ?:[\\/]* )  # Absolute path.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir ;;
  *) # Relative path.
    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_builddir$srcdir ;;
esac

# Do not use `cd foo && pwd` to compute absolute paths, because
# the directories may not exist.
case `pwd` in
.) ac_abs_builddir="$ac_dir";;
*)
  case "$ac_dir" in
  .) ac_abs_builddir=`pwd`;;
  [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
  *) ac_abs_builddir=`pwd`/"$ac_dir";;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_builddir=${ac_top_builddir}.;;
*)
  case ${ac_top_builddir}. in
  .) ac_abs_top_builddir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
  *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_srcdir=$ac_srcdir;;
*)
  case $ac_srcdir in
  .) ac_abs_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
  *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_srcdir=$ac_top_srcdir;;
*)
  case $ac_top_srcdir in
  .) ac_abs_top_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
  *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
  esac;;
esac

  case "$ac_given_INSTALL" in
  [/$]*) INSTALL="$ac_given_INSTALL" ;;
  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
  esac

  case $INSTALL in
  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
  *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
  case "$ac_file" in
  *Makefile*) ac_comsub="1i\\
# $configure_input" ;;
  *) ac_comsub= ;;
  esac

  # Let's still pretend it is `configure' which instantiates (i.e., don't
  # use $as_me), people would be surprised to read:
  #    /* config.h.  Generated by config.status.  */
  if test x"$ac_file" = x-; then
    configure_input=
  else
    configure_input="$ac_file.  "
  fi
  configure_input=$configure_input"Generated from `echo $ac_file_in |
				     sed 's,.*/,,'` by configure."

  # First look for the input files in the build tree, otherwise in the
  # src tree.
  ac_file_inputs=`IFS=:
    for f in $ac_file_in; do
      case $f in
      -) echo $tmp/stdin ;;
      [\\/$]*)
	 # Absolute (can't be DOS-style, as IFS=:)
	 test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
	 echo "$f";;
      *) # Relative
	 if test -f "$f"; then
	   # Build tree
	   echo "$f"
	 elif test -f "$srcdir/$f"; then
	   # Source tree
	   echo "$srcdir/$f"
	 else
	   # /dev/null tree
	   { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
	 fi;;
      esac
    done` || { (exit 1); exit 1; }

  if test x"$ac_file" != x-; then
    { echo "$as_me:$LINENO: creating $ac_file" >&5
echo "$as_me: creating $ac_file" >&6;}
    rm -f "$ac_file"
  fi
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
  sed "$ac_vpsub
$extrasub
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
:t
/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
s,@configure_input@,$configure_input,;t t
s,@srcdir@,$ac_srcdir,;t t
s,@abs_srcdir@,$ac_abs_srcdir,;t t
s,@top_srcdir@,$ac_top_srcdir,;t t
s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
s,@builddir@,$ac_builddir,;t t
s,@abs_builddir@,$ac_abs_builddir,;t t
s,@top_builddir@,$ac_top_builddir,;t t
s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
s,@INSTALL@,$ac_INSTALL,;t t
" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
  rm -f $tmp/stdin
  if test x"$ac_file" != x-; then
    mv $tmp/out $ac_file
  else
    cat $tmp/out
    rm -f $tmp/out
  fi

done
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF

#
# CONFIG_HEADER section.
#

# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
# NAME is the cpp macro being defined and VALUE is the value it is being given.
#
# ac_d sets the value in "#define NAME VALUE" lines.
ac_dA='s,^\([	 ]*\)#\([	 ]*define[	 ][	 ]*\)'
ac_dB='[	 ].*$,\1#\2'
ac_dC=' '
ac_dD=',;t'
# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
ac_uA='s,^\([	 ]*\)#\([	 ]*\)undef\([	 ][	 ]*\)'
ac_uB='$,\1#\2define\3'
ac_uC=' '
ac_uD=',;t'

for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
ac_eB='$%\1#\2define\3'
ac_eC=' '
ac_eD='%g'

if test "${CONFIG_HEADERS+set}" != set; then
EOF
cat >> $CONFIG_STATUS <<EOF
  CONFIG_HEADERS="config.h"
EOF
cat >> $CONFIG_STATUS <<\EOF
fi
for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case $ac_file in
  - | *:- | *:-:* ) # input from stdin
	cat >$tmp/stdin
	ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  * )   ac_file_in=$ac_file.in ;;
  esac

  test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5
echo "$as_me: creating $ac_file" >&6;}

  # First look for the input files in the build tree, otherwise in the
  # src tree.
  ac_file_inputs=`IFS=:
    for f in $ac_file_in; do
      case $f in
      -) echo $tmp/stdin ;;
      [\\/$]*)
	 # Absolute (can't be DOS-style, as IFS=:)
	 test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
	 # Do quote $f, to prevent DOS paths from being IFS'd.
	 echo "$f";;
      *) # Relative
	 if test -f "$f"; then
	   # Build tree
	   echo "$f"
	 elif test -f "$srcdir/$f"; then
	   # Source tree
	   echo "$srcdir/$f"
	 else
	   # /dev/null tree
	   { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
	 fi;;
      esac
    done` || { (exit 1); exit 1; }
  # Remove the trailing spaces.
  sed 's/[	 ]*$//' $ac_file_inputs >$tmp/in

_ACEOF

# Transform confdefs.h into two sed scripts, `conftest.defines' and
# `conftest.undefs', that substitutes the proper values into
# config.h.in to produce config.h.  The first handles `#define'
# templates, and the second `#undef' templates.
# And first: Protect against being on the right side of a sed subst in
# config.status.  Protect against being in an unquoted here document
# in config.status.
rm -f conftest.defines conftest.undefs
# Using a here document instead of a string reduces the quoting nightmare.
# Putting comments in sed scripts is not portable.
#
# `end' is used to avoid that the second main sed command (meant for
# 0-ary CPP macros) applies to n-ary macro definitions.
# See the Autoconf documentation for `clear'.
cat >confdef2sed.sed <<\_ACEOF
s/[\\&,]/\\&/g
s,[\\$`],\\&,g
t clear
: clear
s,^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 (][^	 (]*\)\(([^)]*)\)[	 ]*\(.*\)$,${ac_dA}\1${ac_dB}\1\2${ac_dC}\3${ac_dD},gp
t end
s,^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp
: end
_ACEOF
# If some macros were called several times there might be several times
# the same #defines, which is useless.  Nevertheless, we may not want to
# sort them, since we want the *last* AC-DEFINE to be honored.
uniq confdefs.h | sed -n -f confdef2sed.sed >conftest.defines
sed 's/ac_d/ac_u/g' conftest.defines >conftest.undefs
rm -f confdef2sed.sed

# This sed command replaces #undef with comments.  This is necessary, for
# example, in the case of _POSIX_SOURCE, which is predefined and required
# on some systems where configure will not decide to define it.
cat >>conftest.undefs <<\_ACEOF
s,^[	 ]*#[	 ]*undef[	 ][	 ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
_ACEOF

# Break up conftest.defines because some shells have a limit on the size
# of here documents, and old seds have small limits too (100 cmds).
echo '  # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS
echo '  if grep "^[	 ]*#[	 ]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS
echo '  # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS
echo '  :' >>$CONFIG_STATUS
rm -f conftest.tail
while grep . conftest.defines >/dev/null
do
  # Write a limited-size here document to $tmp/defines.sed.
  echo '  cat >$tmp/defines.sed <<CEOF' >>$CONFIG_STATUS
  # Speed up: don't consider the non `#define' lines.
  echo '/^[	 ]*#[	 ]*define/!b' >>$CONFIG_STATUS
  # Work around the forget-to-reset-the-flag bug.
  echo 't clr' >>$CONFIG_STATUS
  echo ': clr' >>$CONFIG_STATUS
  sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS
  echo 'CEOF
  sed -f $tmp/defines.sed $tmp/in >$tmp/out
  rm -f $tmp/in
  mv $tmp/out $tmp/in
' >>$CONFIG_STATUS
  sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail
  rm -f conftest.defines
  mv conftest.tail conftest.defines
done
rm -f conftest.defines
echo '  fi # grep' >>$CONFIG_STATUS
echo >>$CONFIG_STATUS

# Break up conftest.undefs because some shells have a limit on the size
# of here documents, and old seds have small limits too (100 cmds).
echo '  # Handle all the #undef templates' >>$CONFIG_STATUS
rm -f conftest.tail
while grep . conftest.undefs >/dev/null
do
  # Write a limited-size here document to $tmp/undefs.sed.
  echo '  cat >$tmp/undefs.sed <<CEOF' >>$CONFIG_STATUS
  # Speed up: don't consider the non `#undef'
  echo '/^[	 ]*#[	 ]*undef/!b' >>$CONFIG_STATUS
  # Work around the forget-to-reset-the-flag bug.
  echo 't clr' >>$CONFIG_STATUS
  echo ': clr' >>$CONFIG_STATUS
  sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS
  echo 'CEOF
  sed -f $tmp/undefs.sed $tmp/in >$tmp/out
  rm -f $tmp/in
  mv $tmp/out $tmp/in
' >>$CONFIG_STATUS
  sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail
  rm -f conftest.undefs
  mv conftest.tail conftest.undefs
done
rm -f conftest.undefs

cat >>$CONFIG_STATUS <<\_ACEOF
  # Let's still pretend it is `configure' which instantiates (i.e., don't
  # use $as_me), people would be surprised to read:
  #    /* config.h.  Generated by config.status.  */
  if test x"$ac_file" = x-; then
    echo "/* Generated by configure.  */" >$tmp/config.h
  else
    echo "/* $ac_file.  Generated by configure.  */" >$tmp/config.h
  fi
  cat $tmp/in >>$tmp/config.h
  rm -f $tmp/in
  if test x"$ac_file" != x-; then
    if diff $ac_file $tmp/config.h >/dev/null 2>&1; then
      { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
echo "$as_me: $ac_file is unchanged" >&6;}
    else
      ac_dir=`(dirname "$ac_file") 2>/dev/null ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_file" : 'X\(//\)[^/]' \| \
	 X"$ac_file" : 'X\(//\)$' \| \
	 X"$ac_file" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
      { if $as_mkdir_p; then
    mkdir -p "$ac_dir"
  else
    as_dir="$ac_dir"
    as_dirs=
    while test ! -d "$as_dir"; do
      as_dirs="$as_dir $as_dirs"
      as_dir=`(dirname "$as_dir") 2>/dev/null ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    done
    test ! -n "$as_dirs" || mkdir $as_dirs
  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
   { (exit 1); exit 1; }; }; }

      rm -f $ac_file
      mv $tmp/config.h $ac_file
    fi
  else
    cat $tmp/config.h
    rm -f $tmp/config.h
  fi
done
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF
cat >> $CONFIG_STATUS <<\EOF

{ (exit 0); exit 0; }
_ACEOF
chmod +x $CONFIG_STATUS
ac_clean_files=$ac_clean_files_save


# configure is writing to config.log, and then calls config.status.
# config.status does its own redirection, appending to config.log.
# Unfortunately, on DOS this fails, as config.log is still kept open
# by configure, so config.status won't be able to write to it; its
# output is simply discarded.  So we exec the FD to /dev/null,
# effectively closing config.log, so it can be properly (re)opened and
# appended to by config.status.  When coming back to configure, we
# need to make the FD available again.
if test "$no_create" != yes; then
  ac_cs_success=:
  ac_config_status_args=
  test "$silent" = yes &&
    ac_config_status_args="$ac_config_status_args --quiet"
  exec 5>/dev/null
  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
  exec 5>>config.log
  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
  # would make configure fail if this is the last instruction.
  $ac_cs_success || { (exit 1); exit 1; }
fi





dnl /etc/ld.so.preload file
test "$libdir" = "\${exec_prefix}/lib" && libdir="/lib"

dnl Arguments we allow
AC_ARG_ENABLE(socksdns,
[  --enable-socksdns       force dns lookups to use tcp ])
AC_ARG_ENABLE(tordns,
[  --disable-tordns         don't override name lookup calls to use SOCKS ])   
AC_ARG_ENABLE(debug,
[  --disable-debug         disable ALL error messages from tsocks ])
AC_ARG_ENABLE(oldmethod,
[  --enable-oldmethod      use the old method to override connect ])
AC_ARG_ENABLE(hostnames,
[  --enable-hostnames      enable hostname lookups for socks servers ])
AC_ARG_ENABLE(envconf,
[  --disable-envconf       do not allow TSOCKS_CONF_FILE to specify configuration file ])
AC_ARG_WITH(conf,
[  --with-conf=<file>      location of configuration file (/etc/tsocks.conf default)],[
if test "${withval}" = "yes" ; then

AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S

dnl Check if the C compiler accepts -Wall
AC_MSG_CHECKING(if the C compiler accepts -Wall)
OLDCFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall"
AC_TRY_COMPILE(,,AC_MSG_RESULT(yes),[
   CFLAGS="$OLDCFLAGS"
   AC_MSG_RESULT(no)])

AC_CHECK_HEADER(fcntl.h,,AC_MSG_ERROR("fcntl.h not found"))

dnl Check for the poll header
AC_CHECK_HEADER(sys/poll.h,,AC_MSG_ERROR("sys/poll.h not found"))

dnl Check for the mmap header
AC_CHECK_HEADER(sys/mman.h,,AC_MSG_ERROR("sys/mman.h not found"))

dnl Other headers we're interested in
AC_CHECK_HEADERS(unistd.h)

dnl Checks for library functions.
AC_CHECK_FUNCS(strcspn strdup strerror strspn strtol mmap strcasecmp \
   strncasecmp strtol,,[AC_MSG_ERROR("Required function not found")])

dnl Find which version of gethostbyname_r we should be using (actually this
dnl isn't used right now).
AX_FUNC_WHICH_GETHOSTBYNAME_R

dnl First find the library that contains connect() (obviously
dnl the most important library for us). Once we've found it
dnl we chuck it on the end of LIBS, that lib may end up there
dnl more than once (since we do our search with an empty libs

dnl Checks for libraries.
dnl Replace `main' with a function in -ldl:
AC_CHECK_LIB(dl, dlsym,,AC_MSG_ERROR("libdl is required"))

dnl If we're using gcc here define _GNU_SOURCE
AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
AC_EGREP_CPP(yes,
[
 #include <dlfcn.h>
 #ifdef RTLD_NEXT
	yes
 #endif
], [
  AC_MSG_RESULT(yes)
], [
  AC_MSG_RESULT(no)
  AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h with _GNU_SOURCE)
  AC_EGREP_CPP(yes,
  [
   #define _GNU_SOURCE
   #include <dlfcn.h>
   #ifdef RTLD_NEXT


if test "${enable_socksdns}" = "yes"; then
  AC_DEFINE(USE_SOCKS_DNS)
fi

AC_MSG_CHECKING(whether to enable tordns)
if test "x${enable_tordns}" = "x"; then
  AC_DEFINE(USE_TOR_DNS)
  DEADPOOL_O="\${DEADPOOL}.o"
  AC_MSG_RESULT(yes)
else 
  DEADPOOL_O=""
  AC_MSG_RESULT(no)
fi
AC_SUBST(DEADPOOL_O)

if test "x${enable_envconf}" = "x"; then
  AC_DEFINE(ALLOW_ENV_CONFIG)
fi

if test "${enable_oldmethod}" = "yes"; then


if test "x${enable_debug}" = "x"; then
  AC_DEFINE(ALLOW_MSG_OUTPUT)
fi

if test "x${enable_hostnames}" = "xyes"; then
  AC_DEFINE(HOSTNAMES)
fi

if test "${enable_socksdns}" = "yes" -a \
        "x${enable_hostnames}" = "xyes" ; then
  AC_MSG_ERROR("--enable-socksdns is not valid with --enable-hostnames")
fi

if test "x${enable_tordns}" = "x" -a \
        "x${enable_hostnames}" = "xyes" ; then
  AC_MSG_ERROR("--enable-tordns is not valid with --enable-hostnames")
fi

dnl If we have to use the old method of overriding connect (i.e no
dnl RTLD_NEXT) we need to know the location of the library that
dnl contains connect(), select(), poll() and close()

  if test "${TAIL}" = ""; then
    AC_MSG_ERROR('tail not found in path')
  fi

  dnl Now find the library we need
  AC_MSG_CHECKING(location of lib${CONNECTLIB}.so)
  LIBCONNECT=
  for DIR in '/lib' '/usr/lib'; do
    if test "${LIBCONNECT}" = ""; then
      LIBCONNECT=`$FIND $DIR -name "lib${CONNECTLIB}.so.?" 2>/dev/null | $TAIL -1`
    fi

  fi

  AC_MSG_RESULT($LIBCONNECT)

  dnl close() should be in libc, find it
  AC_MSG_CHECKING(location of libc.so)
  LIBC=
  for DIR in '/lib' '/usr/lib'; do
    if test "${LIBC}" = ""; then
      LIBC=`$FIND $DIR -name "libc.so.?" 2>/dev/null | $TAIL -1`
    fi

  AC_MSG_ERROR("no match found!")
fi
AC_MSG_RESULT([poll(${PROTO})])
AC_DEFINE_UNQUOTED(POLL_SIGNATURE, [${PROTO}])

dnl Emit signature for gethostbyname
PROTO="const char *name"
AC_DEFINE_UNQUOTED(GETHOSTBYNAME_SIGNATURE, [${PROTO}])

dnl Emit signature for getaddrinfo
PROTO="const char *node, const char *service, void *hints, void *res"
AC_DEFINE_UNQUOTED(GETADDRINFO_SIGNATURE, [${PROTO}])

dnl Emit signature for getipnodebyname
PROTO="const char *name, int af, int flags, int *error_num"
AC_DEFINE_UNQUOTED(GETIPNODEBYNAME_SIGNATURE, [${PROTO}])

dnl Output the special librarys (libdl etc needed for tsocks)
SPECIALLIBS=${LIBS}
AC_SUBST(SPECIALLIBS)
LIBS=${SIMPLELIBS}





#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include "common.h"
#include "dead_pool.h"

int store_pool_entry(dead_pool *pool, char *hostname, struct in_addr *addr);
void get_next_dead_address(dead_pool *pool, uint32_t *result);

static int
do_resolve(const char *hostname, uint32_t sockshost, uint16_t socksport,
           uint32_t *result_addr);

/* Compares the last strlen(s2) characters of s1 with s2.  Returns as for
   strcasecmp. */
static int 
strcasecmpend(const char *s1, const char *s2)
{
   size_t n1 = strlen(s1), n2 = strlen(s2);
   if (n2>n1) /* then they can't be the same; figure out which is bigger */
       return strcasecmp(s1,s2);
   else
       return strncasecmp(s1+(n1-n2), s2, n2);
}

dead_pool *
init_pool(int pool_size, struct in_addr deadrange_base, 
    struct in_addr deadrange_mask, char *sockshost, uint16_t socksport)
{
    int i, deadrange_bits, deadrange_width, deadrange_size;
    struct in_addr socks_server;
    dead_pool *newpool = NULL;

    /* Count bits in netmask and determine deadrange width. */
    deadrange_bits = count_netmask_bits(deadrange_mask.s_addr);
    if(deadrange_bits == -1) {
        show_msg(MSGERR, "init_pool: invalid netmask for deadrange\n");
        return NULL;
    } 
    deadrange_width = 32 - deadrange_bits;

    show_msg(MSGDEBUG, "deadrange width is %d bits\n", deadrange_width);

    /* Now work out how many IPs are available in the deadrange and check
       that this number makes sense.  If the deadpool is bigger than the 
       deadrange we shrink the pool. */

    for(i=0, deadrange_size = 1; i < deadrange_width; i++) {
        deadrange_size *= 2;
    }

    if(deadrange_size < pool_size) {
        show_msg(MSGWARN, "tordns cache size was %d, but deadrange size is %d: "
                 "shrinking pool size to %d entries\n", pool_size, 
                 deadrange_size, deadrange_size);
        pool_size = deadrange_size;
    }
    if(pool_size < 1) {
        show_msg(MSGERR, "tordns cache size is 0, disabling tordns\n");
        return NULL;
    }

    /* Allocate space for the dead_pool structure */
    newpool = (dead_pool *) mmap(0, sizeof(dead_pool), 
                   PROT_READ | PROT_WRITE, 
                   MAP_SHARED | MAP_ANONYMOUS, -1, 0); 
    if(!newpool) {
        show_msg(MSGERR, "init_pool: unable to mmap deadpool "
                 "(tried to map %d bytes)\n", sizeof(dead_pool));
        return NULL;
    }

    /* Initialize the dead_pool structure */
#ifdef HAVE_INET_ATON
    inet_aton(sockshost, &socks_server);
#elif defined(HAVE_INET_ADDR)
    socks_server.s_addr = inet_addr(sockshost);
#endif
    newpool->sockshost = ntohl(socks_server.s_addr);
    newpool->socksport = socksport;
    newpool->deadrange_base = ntohl(deadrange_base.s_addr);
    newpool->deadrange_mask = ntohl(deadrange_mask.s_addr);
    newpool->deadrange_size = deadrange_size;
    newpool->write_pos = 0;
    newpool->dead_pos = 0;
    newpool->n_entries = pool_size;

    /* Allocate space for the entries */
    newpool->entries = (pool_ent *) mmap(0, newpool->n_entries * sizeof(pool_ent), 
                            PROT_READ | PROT_WRITE, 
                            MAP_SHARED | MAP_ANONYMOUS, -1, 0); 
    if(!newpool->entries) {
        munmap((void *)newpool, sizeof(dead_pool));
        show_msg(MSGERR, "init_pool: unable to mmap deadpool entries "
                 "(tried to map %d bytes)\n", 
                 newpool->n_entries * sizeof(pool_ent)); 
        return NULL;
    }

    /* Initialize the entries */
    for(i=0; i < newpool->n_entries; i++) {
        newpool->entries[i].ip = -1;
        newpool->entries[i].name[0] = '\0';
    }

    return newpool;
}

int 
is_dead_address(dead_pool *pool, uint32_t addr) 
{
    uint32_t haddr = ntohl(addr);
    if(pool == NULL) {
        return 0;
    }
    return (pool->deadrange_base == (haddr & pool->deadrange_mask));
}

void
get_next_dead_address(dead_pool *pool, uint32_t *result)
{
    *result = htonl(pool->deadrange_base + pool->dead_pos++);
    if(pool->dead_pos >= pool->deadrange_size) {
        pool->dead_pos = 0;
    }
}

int 
store_pool_entry(dead_pool *pool, char *hostname, struct in_addr *addr)
{
  int position = pool->write_pos;
  int oldpos;
  int rc;
  uint32_t intaddr;

  show_msg(MSGDEBUG, "store_pool_entry: storing '%s'\n", hostname);
  show_msg(MSGDEBUG, "store_pool_entry: write pos is: %d\n", pool->write_pos);

  /* Check to see if name already exists in pool */
  oldpos = search_pool_for_name(pool, hostname);
  if(oldpos != -1){
      show_msg(MSGDEBUG, "store_pool_entry: not storing (entry exists)\n");
      addr->s_addr = pool->entries[oldpos].ip;
      return oldpos;
  }

  /* If this is a .onion host, then we return a bogus ip from our deadpool, 
     otherwise we try to resolve it and store the 'real' IP */
  if(strcasecmpend(hostname, ".onion") == 0) {
      get_next_dead_address(pool, &pool->entries[position].ip);
  } else {
      rc = do_resolve(hostname, pool->sockshost, pool->socksport, &intaddr);
      if(rc != 0) {
          show_msg(MSGWARN, "failed to resolve: %s\n", hostname);
          return -1;
      } 
      if(is_dead_address(pool, intaddr)) {
          show_msg(MSGERR, "resolved %s -> %d (deadpool address) IGNORED\n");
          return -1;
      }
      pool->entries[position].ip = intaddr;
  }

  strncpy(pool->entries[position].name, hostname, 255);
  pool->entries[position].name[255] = '\0';
  pool->write_pos++;
  if(pool->write_pos >= pool->n_entries) {
      pool->write_pos = 0;
  }
  addr->s_addr = pool->entries[position].ip;

  show_msg(MSGDEBUG, "store_pool_entry: stored entry in slot '%d'\n", position);

  return position;
}

int 
search_pool_for_name(dead_pool *pool, const char *name) 
{
  int i;
  for(i=0; i < pool->n_entries; i++){
    if(strcmp(name, pool->entries[i].name) == 0){
      return i;
    }
  }
  return -1;
}

char *
get_pool_entry(dead_pool *pool, struct in_addr *addr)
{
  int i;
  uint32_t intaddr = addr->s_addr;

  if(pool == NULL) {
      return NULL;
  }

  show_msg(MSGDEBUG, "get_pool_entry: searching for: %s\n", inet_ntoa(*addr));
  for(i=0; i<pool->n_entries; i++) {
    if(intaddr == pool->entries[i].ip) {
        show_msg(MSGDEBUG, "get_pool_entry: found: %s\n", pool->entries[i].name);
        return pool->entries[i].name;
    }
  }
  show_msg(MSGDEBUG, "get_pool_entry: address not found\n");

  return NULL;
}

static int
build_socks4a_resolve_request(char **out,
                              const char *username,
                              const char *hostname)
{
  size_t len;
  uint16_t port = htons(0);  /* port: 0. */
  uint32_t addr = htonl(0x00000001u); /* addr: 0.0.0.1 */

  len = 8 + strlen(username) + 1 + strlen(hostname) + 1;
  *out = malloc(len);
  (*out)[0] = 4;      /* SOCKS version 4 */
  (*out)[1] = '\xF0'; /* Command: resolve. */

  memcpy((*out)+2, &port, sizeof(port));
  memcpy((*out)+4, &addr, sizeof(addr));
  strcpy((*out)+8, username);
  strcpy((*out)+8+strlen(username)+1, hostname);

  return len;
}

#define RESPONSE_LEN 8

static int
parse_socks4a_resolve_response(const char *response, size_t len,
                               uint32_t *addr_out)
{
  uint8_t status;
  uint16_t port;

  if (len < RESPONSE_LEN) {
    show_msg(MSGWARN,"Truncated socks response.\n"); 
    return -1;
  }
  if (((uint8_t)response[0])!=0) { /* version: 0 */
    show_msg(MSGWARN,"Nonzero version in socks response: bad format.\n");
    return -1;
  }
  status = (uint8_t)response[1];

  memcpy(&port, response+2, sizeof(port));
  if (port!=0) { /* port: 0 */
    show_msg(MSGWARN,"Nonzero port in socks response: bad format.\n"); 
    return -1;
  }
  if (status != 90) {
    show_msg(MSGWARN,"Bad status: socks request failed.\n"); 
    return -1;
  }

  memcpy(addr_out, response+4, sizeof(*addr_out));

  return 0;
}

static int
do_resolve(const char *hostname, uint32_t sockshost, uint16_t socksport,
           uint32_t *result_addr)
{
  int s;
  struct sockaddr_in socksaddr;
  char *req, *cp;
  int r, len;
  char response_buf[RESPONSE_LEN];

  show_msg(MSGDEBUG, "do_resolve: resolving %s\n", hostname);

  s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (s<0) {
    show_msg(MSGWARN, "do_resolve: problem creating socket\n"); 
    return -1;
  }

  memset(&socksaddr, 0, sizeof(socksaddr));
  socksaddr.sin_family = AF_INET;
  socksaddr.sin_port = htons(socksport);
  socksaddr.sin_addr.s_addr = htonl(sockshost);
  if (realconnect(s, (struct sockaddr*)&socksaddr, sizeof(socksaddr))) {
    show_msg(MSGWARN, "do_resolve: error connecting to SOCKS server\n");
    return -1;
  }

  if ((len = build_socks4a_resolve_request(&req, "", hostname))<0) {
    show_msg(MSGWARN, "do_resolve: error generating SOCKS request\n"); 
    return -1;
  }

  cp = req;
  while (len) {
    r = send(s, cp, len, 0);
    if (r<0) {
      show_msg(MSGWARN, "do_resolve: error sending SOCKS request\n"); 
      free(req);
      return -1;
    }
    len -= r;
    cp += r;
  }
  free(req);

  len = 0;
  while (len < RESPONSE_LEN) {
    r = recv(s, response_buf+len, RESPONSE_LEN-len, 0);
    if (r==0) {
      show_msg(MSGWARN, "do_resolve: EOF while reading SOCKS response\n"); 
      return -1;
    }
    if (r<0) {
      show_msg(MSGWARN, "do_resolve: error reading SOCKS response\n"); 
      return -1;
    }
    len += r;
  }

  realclose(s);

  if (parse_socks4a_resolve_response(response_buf, RESPONSE_LEN, result_addr) < 0){
    show_msg(MSGWARN, "do_resolve: error parsing SOCKS response\n");
    return -1;
  }

  show_msg(MSGDEBUG, "do_resolve: success\n");

  return 0;
}

struct hostent *
our_gethostbyname(dead_pool *pool, const char *name)
{
  int pos;
  static struct in_addr addr;
  static struct hostent he;
  static char *addrs[2];

  show_msg(MSGDEBUG, "our_gethostbyname: '%s' requested\n", name);

  pos = store_pool_entry(pool,(char *) name, &addr);
  if(pos == -1) {
      h_errno = HOST_NOT_FOUND;
      return NULL;
  }

  addrs[0] = (char *)&addr;
  addrs[1] = NULL;

  he.h_name      = pool->entries[pos].name;
  he.h_aliases   = NULL;
  he.h_length    = 4;
  he.h_addrtype  = AF_INET;
  he.h_addr_list = addrs;

  show_msg(MSGDEBUG, "our_gethostbyname: resolved '%s' to: '%s'\n", 
           name, inet_ntoa(*((struct in_addr *)he.h_addr)));

  return &he;
}

static struct hostent *
alloc_hostent(int af)
{
    struct hostent *he = NULL;
    char **addr_list = NULL;
    void *addr = NULL;
    char **aliases = NULL;

    if(af != AF_INET && af != AF_INET6) {
        return NULL;
    }

    /* Since the memory we allocate here will be free'd by freehostent and
       that function is opaque to us, it's likely that we'll leak a little 
       bit of memory here. */

    he = malloc(sizeof(struct hostent));
    addr_list = malloc(2 * sizeof(char *));
    if(af == AF_INET6) {
        addr = malloc(sizeof(struct in6_addr));
    } else {
        addr = malloc(sizeof(struct in_addr));
    }
    aliases = malloc(sizeof(char *));

    if(he == NULL || addr_list == NULL || addr == NULL || aliases == NULL) {
        if(he)
            free(he);
        if(addr_list)
            free(addr_list);
        if(addr)
            free(addr);
        if(aliases)
            free(aliases);
    }

    he->h_name = NULL;
    he->h_addr_list = addr_list;
    he->h_addr_list[0] = addr;
    he->h_addr_list[1] = NULL;
    he->h_aliases = aliases;
    he->h_aliases[0] = NULL;
    he->h_length = af == AF_INET ? 4 : 16;
    he->h_addrtype = af;

    return he;
}

/* On Linux, there's no freehostent() anymore; we might as well implement
   this ourselves. */

static void
free_hostent(struct hostent *he)
{
    int i;
    if(he->h_name) {
        free(he->h_name);
    }
    if(he->h_aliases) {
        for(i=0; he->h_aliases[i] != NULL; i++) {
            free(he->h_aliases[i]);
        }
        free(he->h_aliases);
    }
    if(he->h_addr_list) {
        free(he->h_addr_list);
    }
    free(he);
}

int
our_getaddrinfo(dead_pool *pool, const char *node, const char *service, 
                void *hints, void *res)
{
    int pos;
    struct in_addr addr;
    char *ipstr;
    int ret;

    /* If "node" looks like a dotted-decimal ip address, then just call 
       the real getaddrinfo; otherwise we'll need to get an address from 
       our pool. */

    /* TODO: work out what to do with AF_INET6 requests */

#ifdef HAVE_INET_ATON
    if(inet_aton(node, &addr) == 0) {
#elif defined(HAVE_INET_ADDR)
    /* If we're stuck with inet_addr, then getaddrinfo() won't work 
       properly with 255.255.255.255 (= -1).  There's not much we can
       do about this */
    in_addr_t is_valid;
    is_valid = inet_addr(node);
    if(is_valid == -1) {
#endif
        pos = store_pool_entry(pool, (char *) node, &addr);
        if(pos == -1) {
            return EAI_NONAME;
        } else {
            ipstr = strdup(inet_ntoa(addr));
            ret = realgetaddrinfo(ipstr, service, hints, res);
            free(ipstr);
        }
    } else {
        ret = realgetaddrinfo(node, service, hints, res);
    }

    return ret;
}

struct hostent *
our_getipnodebyname(dead_pool *pool, const char *name, int af, int flags, 
                    int *error_num)
{
    int pos;
    struct hostent *he = NULL;
    int want_4in6 = 0;
    char addr_convert_buf[80];
    struct in_addr pool_addr;

    if(af == AF_INET6) {
        /* Caller has requested an AF_INET6 address, and is not prepared to
           accept IPv4-mapped IPV6 addresses. There's nothing we can do to
           service their request. */
        if((flags & AI_V4MAPPED) == 0) {
            show_msg(MSGWARN, "getipnodebyname: asked for V6 addresses only, "
                     "but tsocks can't handle that\n");
            *error_num = NO_RECOVERY;
            return NULL;
        } else {
            want_4in6 = 1;
        }
    }

    pos = store_pool_entry(pool, (char *)name, &pool_addr);
    if(pos == -1) {
        *error_num = HOST_NOT_FOUND;
        return NULL;
    }

    he = alloc_hostent(af);
    if(he == NULL) {
        show_msg(MSGERR, "getipnodebyname: failed to allocate hostent\n");
        *error_num = NO_RECOVERY;
        return NULL;
    }

    if(want_4in6) {
        /* Convert the ipv4 address in *addr to an IPv4 in IPv6 mapped 
           address. TODO: inet_ntoa() is thread-safe on Solaris but might
           not be on other platforms. */
        strcpy(addr_convert_buf, "::FFFF:");
        strcpy(addr_convert_buf+7, inet_ntoa(pool_addr));
        if(inet_pton(AF_INET6, addr_convert_buf, he->h_addr_list[0]) != 1) {
            show_msg(MSGERR, "getipnodebyname: inet_pton() failed!\n");
            free_hostent(he);
            *error_num = NO_RECOVERY;
            return NULL;
        }
    } else {
        ((struct in_addr *) he->h_addr_list[0])->s_addr = pool_addr.s_addr;
    }
    he->h_name = strdup(name);

    return he;
}






#ifndef _DEAD_POOL_H
#define _DEAD_POOL_H

#include <config.h>

extern int (*realconnect)(CONNECT_SIGNATURE);
extern int (*realclose)(CLOSE_SIGNATURE);
extern int (*realgetaddrinfo)(GETADDRINFO_SIGNATURE);

struct struct_pool_ent {
  unsigned int ip;
  char name[256];
};

typedef struct struct_pool_ent pool_ent;

struct struct_dead_pool {
  pool_ent *entries;            /* Points to array of pool entries */
  int n_entries;                /* Number of entries in the deadpool */
  unsigned int deadrange_base;  /* Deadrange start IP in host byte order */
  unsigned int deadrange_mask;  /* Deadrange netmask in host byte order */
  unsigned int deadrange_size;  /* Number of IPs in the deadrange */
  unsigned int write_pos;       /* Next position to use in the pool array */
  unsigned int dead_pos;        /* Next 'unused' deadpool IP */
  uint32_t sockshost;     
  uint16_t socksport;
  char pad[2];
};

typedef struct struct_dead_pool dead_pool;

dead_pool *init_pool(int deadpool_size, struct in_addr deadrange_base, 
    struct in_addr deadrange_mask, char *sockshost, uint16_t socksport);
int is_dead_address(dead_pool *pool, uint32_t addr);
char *get_pool_entry(dead_pool *pool, struct in_addr *addr);
int search_pool_for_name(dead_pool *pool, const char *name);
struct hostent *our_gethostbyname(dead_pool *pool, const char *name);
int our_getaddrinfo(dead_pool *pool, const char *node, const char *service, 
    void *hints, void *res);
struct hostent *our_getipnodebyname(dead_pool *pool, const char *name, 
    int af, int flags, int *error_num);

#endif /* _DEAD_POOL_H */


Lines 2-15 Link Here

(-)tsocks-1.8/INSTALL (-4 / +9 lines)
2	-------------------------------	2	-------------------------------
3		3
4	1. Unpack the archive (though if you're reading this you've already	4	1. Unpack the archive (though if you're reading this you've already
5	achieved that)	5	achieved that)
6		6
7	tar -zxvf tsocks-<version>.tar.gx	7	tar -zxvf tsocks-<version>.tar.gz
		8	OR
		9	tar -jxvf tsocks-<version>.tar.bz
8		10
9	2. Run ./configure, options which might be of interest (and that are	11	2. Run ./configure, options which might be of interest (and that are
10	specific to tsocks include):	12	specific to tsocks include):
		13	--disable-tordns This option disables tordns, which causes
		14	names to be looked up in a way designed to
		15	work well with Tor.
11	--enable-socksdns This option causes tsocks to intercept	16	--enable-socksdns This option causes tsocks to intercept
12	DNS lookups and attempt to force them	17	DNS lookups and attempt to force them
13	to use TCP instead of UDP and thus	18	to use TCP instead of UDP and thus
14	be proxied through the socks server. This	19	be proxied through the socks server. This
15	is not a very elegant thing to do and	20	is not a very elegant thing to do and
Lines 24-37 Link Here
24	address of the connect() method tsocks	29	address of the connect() method tsocks
25	overrides, instead it loads a reference	30	overrides, instead it loads a reference
26	to the libc shared library and then uses	31	to the libc shared library and then uses
27	dlsym(). Again this is not very elegant	32	dlsym(). Again this is not very elegant
28	and shouldn't be required.	33	and shouldn't be required.
29	--disable-hostnames This disables DNS lookups on names	34	--enable-hostnames This enables DNS lookups on names
30	provided as socks servers in the config	35	provided as socks servers in the config
31	file. This option is necessary	36	file. This option is not compatible with
32	if socks dns is enabled since tsocks	37	tordns or socks dns, since tsocks
33	can't send a socks dns request to resolve	38	can't send a socks dns request to resolve
34	the location of the socks server.	39	the location of the socks server.
35	--with-conf=<filename> You can specify the location of the tsocks	40	--with-conf=<filename> You can specify the location of the tsocks
36	configuration file using this option, it	41	configuration file using this option, it
37	defaults to '/etc/tsocks.conf'	42	defaults to '/etc/tsocks.conf'




INSPECT = inspectsocks
SAVE = saveme
LIB_NAME = libtsocks
COMMON = common
PARSER = parser
DEADPOOL = dead_pool
VALIDATECONF = validateconf
SCRIPT = tsocks
SHLIB_MAJOR = 1
SHLIB_MINOR = 8
SHLIB = ${LIB_NAME}.so.${SHLIB_MAJOR}.${SHLIB_MINOR}
DEADPOOL_O = @DEADPOOL_O@

INSTALL = @INSTALL@
INSTALL_DATA = @INSTALL_DATA@
CFLAGS = @CFLAGS@
INCLUDES = -I.

	${SHCC} ${CFLAGS} ${INCLUDES} -o ${INSPECT} ${INSPECT}.c ${COMMON}.o ${LIBS} 

${SAVE}: ${SAVE}.c
	${SHCC} ${CFLAGS} ${INCLUDES} -static -o ${SAVE} ${SAVE}.c

${SHLIB}: ${OBJS} ${COMMON}.o ${PARSER}.o ${DEADPOOL_O}
	${SHCC} ${CFLAGS} ${INCLUDES} -nostdlib -shared -o ${SHLIB} ${OBJS} ${COMMON}.o ${PARSER}.o ${DEADPOOL_O} ${DYNLIB_FLAGS} ${SPECIALLIBS} ${LIBS}
	ln -sf ${SHLIB} ${LIB_NAME}.so

%.so: %.c
	${SHCC} ${CFLAGS} ${INCLUDES} -c ${CC_SWITCHES} $< -o $@


	
clean:
	-rm -f *.so *.so.* *.o *~ ${TARGETS}

distclean: clean
	-rm -f config.cache config.log config.h Makefile \
		aclocal.m4 config.status 
	-rm -rf autom4te.cache


Lines 27-36 Link Here

(-)tsocks-1.8/parser.c (-4 / +141 lines)
27	static int handle_reaches(struct parsedfile , int, char );	27	static int handle_reaches(struct parsedfile , int, char );
28	static int handle_server(struct parsedfile , int, char );	28	static int handle_server(struct parsedfile , int, char );
29	static int handle_type(struct parsedfile config, int, char );	29	static int handle_type(struct parsedfile config, int, char );
30	static int handle_port(struct parsedfile config, int, char );	30	static int handle_port(struct parsedfile config, int, char );
31	static int handle_local(struct parsedfile , int, char );	31	static int handle_local(struct parsedfile , int, char );
		32	static int handle_tordns_enabled(struct parsedfile , int, char );
		33	static int handle_tordns_deadpool_range(struct parsedfile , int, char );
		34	static int handle_tordns_cache_size(struct parsedfile , int, char );
32	static int handle_defuser(struct parsedfile , int, char );	35	static int handle_defuser(struct parsedfile , int, char );
33	static int handle_defpass(struct parsedfile , int, char );	36	static int handle_defpass(struct parsedfile , int, char );
34	static int make_netent(char value, struct netent *ent);	37	static int make_netent(char value, struct netent *ent);
35		38
36	int read_config (char filename, struct parsedfile config) {	39	int read_config (char filename, struct parsedfile config) {
Lines 41-53 Link Here
41	struct serverent *server;	44	struct serverent *server;
42		45
43	/* Clear out the structure */	46	/* Clear out the structure */
44	memset(config, 0x0, sizeof(*config));	47	memset(config, 0x0, sizeof(*config));
45		48
46	/* Initialization */	49	/* Initialization */
47	currentcontext = &(config->defaultserver);	50	currentcontext = &(config->defaultserver);
48		51
		52	/* Tordns defaults */
		53	config->tordns_cache_size = 256;
		54	config->tordns_enabled = 1;
		55
49	/* If a filename wasn't provided, use the default */	56	/* If a filename wasn't provided, use the default */
50	if (filename == NULL) {	57	if (filename == NULL) {
51	strncpy(line, CONF_FILE, sizeof(line) - 1);	58	strncpy(line, CONF_FILE, sizeof(line) - 1);
52	/* Insure null termination */	59	/* Insure null termination */
53	line[sizeof(line) - 1] = (char) 0;	60	line[sizeof(line) - 1] = (char) 0;
Lines 56-66 Link Here
56		63
57	/* Read the configuration file */	64	/* Read the configuration file */
58	if ((conf = fopen(filename, "r")) == NULL) {	65	if ((conf = fopen(filename, "r")) == NULL) {
59	show_msg(MSGERR, "Could not open socks configuration file "	66	show_msg(MSGERR, "Could not open socks configuration file "
60	"(%s), assuming all networks local\n", filename);	67	"(%s), assuming all networks local\n", filename);
61	handle_local(config, 0, "0.0.0.0/0.0.0.0");	68	handle_local(config, 0, "0.0.0.0/0.0.0.0");
62	rc = 1; /* Severe errors reading configuration */	69	rc = 1; /* Severe errors reading configuration */
63	}	70	}
64	else {	71	else {
65	memset(&(config->defaultserver), 0x0, sizeof(config->defaultserver));	72	memset(&(config->defaultserver), 0x0, sizeof(config->defaultserver));
66		73
Lines 82-94 Link Here
82	server = (config->paths);	89	server = (config->paths);
83	while (server != NULL) {	90	while (server != NULL) {
84	check_server(server);	91	check_server(server);
85	server = server->next;	92	server = server->next;
86	}	93	}
87
88	}	94	}
89		95
		96	/* Initialize tordns deadpool_range if not supplied */
		97	if(config->tordns_deadpool_range == NULL) {
		98	handle_tordns_deadpool_range(config, 0, "127.0.69.0/255.255.255.0");
		99	}
		100
90	return(rc);	101	return(rc);
91	}	102	}
92		103
93	/* Check server entries (and establish defaults) */	104	/* Check server entries (and establish defaults) */
94	static int check_server(struct serverent *server) {	105	static int check_server(struct serverent *server) {
Lines 150-160 Link Here
150	handle_defuser(config, lineno, words[2]);	161	handle_defuser(config, lineno, words[2]);
151	} else if (!strcmp(words[0], "default_pass")) {	162	} else if (!strcmp(words[0], "default_pass")) {
152	handle_defpass(config, lineno, words[2]);	163	handle_defpass(config, lineno, words[2]);
153	} else if (!strcmp(words[0], "local")) {	164	} else if (!strcmp(words[0], "local")) {
154	handle_local(config, lineno, words[2]);	165	handle_local(config, lineno, words[2]);
155	} else {	166	} else if (!strcmp(words[0], "tordns_enable")) {
		167	handle_tordns_enabled(config, lineno, words[2]);
		168	} else if (!strcmp(words[0], "tordns_deadpool_range")) {
		169	handle_tordns_deadpool_range(config, lineno, words[2]);
		170	} else if (!strcmp(words[0], "tordns_cache_size")) {
		171	handle_tordns_cache_size(config, lineno, words[2]);
		172	} else {
156	show_msg(MSGERR, "Invalid pair type (%s) specified "	173	show_msg(MSGERR, "Invalid pair type (%s) specified "
157	"on line %d in configuration file, "	174	"on line %d in configuration file, "
158	"\"%s\"\n", words[0], lineno,	175	"\"%s\"\n", words[0], lineno,
159	savedline);	176	savedline);
160	}	177	}
Lines 416-425 Link Here
416	}	433	}
417		434
418	return(0);	435	return(0);
419	}	436	}
420		437
		438	static int handle_flag(char *value)
		439	{
		440	if(!strcasecmp(value, "true") \|\| !strcasecmp(value, "yes")
		441	\|\| !strcmp(value, "1")) {
		442	return 1;
		443	} else if (!strcasecmp(value, "false") \|\| !strcasecmp(value, "no")
		444	\|\| !strcmp(value, "0")) {
		445	return 0;
		446	} else {
		447	return -1;
		448	}
		449	}
		450
		451	static int handle_tordns_enabled(struct parsedfile *config, int lineno,
		452	char *value)
		453	{
		454	int val = handle_flag(value);
		455	if(val == -1) {
		456	show_msg(MSGERR, "Invalid value %s supplied for tordns_enabled at "
		457	"line %d in config file, IGNORED\n", value, lineno);
		458	} else {
		459	config->tordns_enabled = val;
		460	}
		461	return 0;
		462	}
		463
		464	static int handle_tordns_cache_size(struct parsedfile *config, int lineno,
		465	char *value)
		466	{
		467	char *endptr;
		468	long size = strtol(value, &endptr, 10);
		469	if(*endptr != '\0') {
		470	show_msg(MSGERR, "Error parsing integer value for "
		471	"tordns_cache_size (%s), using default %d\n",
		472	value, config->tordns_cache_size);
		473	} else if(size < 128) {
		474	show_msg(MSGERR, "The value supplied for tordns_cache_size (%d) "
		475	"is too small (<128), using default %d\n", size,
		476	config->tordns_cache_size);
		477	} else if(size > 4096) {
		478	show_msg(MSGERR, "The value supplied for tordns_cache_range (%d) "
		479	"is too large (>4096), using default %d\n", size,
		480	config->tordns_cache_size);
		481	} else {
		482	config->tordns_cache_size = size;
		483	}
		484	return 0;
		485	}
		486
		487	static int handle_tordns_deadpool_range(struct parsedfile *config, int lineno,
		488	char *value)
		489	{
		490	int rc;
		491	struct netent *ent;
		492
		493	if (config->tordns_deadpool_range != NULL) {
		494	show_msg(MSGERR, "Only one 'deadpool' entry permitted, found a "
		495	"second at line %d in configuration file.\n");
		496	return(0);
		497	}
		498
		499	if (currentcontext != &(config->defaultserver)) {
		500	show_msg(MSGERR, "Deadpool cannot be specified in path "
		501	"block at like %d in configuration file. "
502	"(Path block started at line %d)\n",
503	lineno, currentcontext->lineno);
504	return(0);
505	}
506
507	rc = make_netent(value, &ent);
508	/* This is copied from handle_local and should probably be folded into
509	a generic whinge() function or something */
510	switch(rc) {
511	case 1:
512	show_msg(MSGERR, "The deadpool specification (%s) is not validly "
513	"constructed on line %d in configuration "
514	"file\n", value, lineno);
515	return(0);
516	break;
517	case 2:
518	show_msg(MSGERR, "IP for deadpool "
519	"network specification (%s) is not valid on line "
520	"%d in configuration file\n", value, lineno);
521	return(0);
522	break;
523	case 3:
524	show_msg(MSGERR, "SUBNET for "
525	"deadpool network specification (%s) is not valid on "
526	"line %d in configuration file\n", value,
527	lineno);
528	return(0);
529	break;
530	case 4:
531	show_msg(MSGERR, "IP (%s) & ", inet_ntoa(ent->localip));
532	show_msg(MSGERR, "SUBNET (%s) != IP on line %d in "
533	"configuration file, ignored\n",
534	inet_ntoa(ent->localnet), lineno);
535	return(0);
536	case 5:
537	case 6:
538	case 7:
539	show_msg(MSGERR, "Port specification is invalid and "
540	"not allowed in deadpool specification "
541	"(%s) on line %d in configuration file\n",
542	value, lineno);
543	return(0);
544	break;
545	}
546	if (ent->startport \|\| ent->endport) {
547	show_msg(MSGERR, "Port specification is "
548	"not allowed in deadpool specification "
549	"(%s) on line %d in configuration file\n",
550	value, lineno);
551	return(0);
552	}
553
554	config->tordns_deadpool_range = ent;
555	return 0;
556	}
557
421	static int handle_local(struct parsedfile config, int lineno, char value) {	558	static int handle_local(struct parsedfile config, int lineno, char value) {
422	int rc;	559	int rc;
423	struct netent *ent;	560	struct netent *ent;
424		561
425	if (currentcontext != &(config->defaultserver)) {	562	if (currentcontext != &(config->defaultserver)) {




struct netent {
   struct in_addr localip; /* Base IP of the network */
   struct in_addr localnet; /* Mask for the network */
   unsigned long startport; /* Range of ports for the */
   unsigned long endport;   /* network                */
   struct netent *next; /* Pointer to next network entry */
};

/* Structure representing a complete parsed file */
struct parsedfile {
   struct netent *localnets;
   struct serverent defaultserver;
   struct serverent *paths;
   int tordns_enabled;
   int tordns_failopen;
   int tordns_cache_size;
   struct netent *tordns_deadpool_range;
};

/* Functions provided by parser module */
int read_config(char *, struct parsedfile *);
int is_local(struct parsedfile *, struct in_addr *);





TORDNS
======

What is it?
-----------

This patch modifies the tsocks library to use SOCKS for name resolution.


Why should I use it?
--------------------

* It's easier.

When using this patch you don't (always..) need to run 'tor-resolve' when 
using 'torify' anymore.  Also, 'torify' now works directly with SSH without 
the need for connect scripts or other fiddling. [As long as SSH is not 
installed suid root].

* It allows you to use programs which are not SOCKS aware to connect to 
.onion sites. 

For example, you can ssh directly to a .onion site, or use telnet / netcat
without hassle.  


QUICK: what do I need to do to make it work?
--------------------------------------------

Configuration instructions:

1) Get the sources

wget http://ftp1.sourceforge.net/tsocks/tsocks-1.8beta5.tar.gz
wget http://www.totalinfosecurity.com/patches/tor-tsocks/tordns-1.8b5.patch

2) Unpack and apply the tsocks patch

tar xzvf tsocks-1.8beta5.tar.gz
cd tsocks-1.8
patch -p1 < ../tordns-1.8b5.patch

3) Configure, compile and install

NOTE: The default 'configure' settings for tsocks have been changed by 
this patch.  The --disable-hostnames option (don't try to use DNS to look
up SOCKS servers) is now enabled by default.  Also, tordns is enabled 
by default.

./configure 
make 
make install 

All the tordns config options have sane default values which you should
not need to change.  


Why did I need to use 'tor-resolve' with 'torify' in the first place?
---------------------------------------------------------------------

Because if you run "torify telnet bar.foo.com 31337", for example, then 
you're leaking information about what sites you're visiting to DNS servers.  

The tor-resolve utility resolves names through tor using SOCKS, in a way
that shouldn't compromise your privacy.


What won't work with this?
--------------------------

The 'tordns' feature for tsocks only works with applications using the 
standard c library name lookup mechanisms.

Some programs roll their own name lookup functions, for example, 'curl' 
uses the 'adns' library, not the standard c library name lookup calls.  
In this case, you'll still be leaking DNS requests.

However, it seems that most programs which go to the trouble of implementing 
asynchronous DNS requests or doing other tricky things have native SOCKS or
HTTP proxy support.  

Requests for reverse name lookups are not intercepted.

Finally, the tsocks library is NOT thread-safe, with or without this patch.
You should not 'torify' multithreaded applications.


How does it work?
-----------------

This patch adds interceptors for common name resolution calls to tsocks.  
Specifically, the 'gethostbyname', 'getaddrinfo' and 'getipnodebyname' library 
functions. (gethostbyname_r is not supported).

When a call to one of these functions is intercepted, a SOCKS4A resolve 
request is used to retrieve the relevant information, and the results are
cached. 

When the application calls 'connect', the cache is consulted and instead
of making a SOCKS5 request and supplying the IP address, we connect using 
the name.  This prevents those messages in the tor logs which look like:

  Sep 23 10:12:20.901 [warn] fetch_from_buf_socks(): Your application (using s
  ocks5 on port 80) is giving Tor only an IP address. Applications that do DNS
  resolves themselves may leak information. Consider using Socks4A (e.g. via
  privoxy or socat) instead.

There are special provisions for handling .onion sites.  When a program asks
to resolve a name ending in '.onion', no name lookup is performed.  A bogus IP 
address is returned. The range of unused IP addresses to hand out is called the 
"deadpool".  This IP address doesn't mean anything in particular, and could be 
considered a cookie associated with the name.  When the application eventually 
calls 'connect' with this bogus IP, the cache is consulted and the result is a 
SOCKS5 request which includes the name of the .onion site.

The default deadpool range is '127.0.69.0/255.255.255.0'.  NOTE: if a resolve
request results in an IP from the deadpool range then the response is rejected,
and it appears to the application that the lookup failed.

The lookup cache is kept in mmap'd memory and shared across fork() calls.
This is because some programs perform name lookups in a child process and 
then invoke 'connect' in the parent as a kind of "poor man's async DNS".  


Advanced configuration options
------------------------------

The following options have been added to the tsocks configuration file:

tordns_enable

  The default value is 'true'.  If you set it to 'false', tsocks should work 
  just like it did without the tordns patch.  

  
tordns_deadpool_range

  The default value is '127.0.69.0/255.255.255.0'.  This specifies what range
  of IP addresses will be handed to the application as "cookies" for .onion
  names.  Of course, you should pick a block of addresses which you aren't 
  going to ever need to actually connect to.    


tordns_cache_size

  This specifies the number of IP addresses looked up through socks to cache.
  The default value is 256. The default value is 256.  Each entry consumes 260 
  bytes of memory, so the default adds 66,560 bytes of overhead to each 
  'torified' process. NOTE: if the number of IP addresses in 
  tordns_deadpool_range is less than the value specified for tordns_cache_size, 
  then the cache will be shrunk to fit the deadpool range. This is to prevent 
  duplicate deadpool addresses from ever appearing in the cache.


TODO
----

* Think about how local names get resolved.  Is it important?  For example,
  if I 'telnet localhost' which using tordns, what should happen?  Should
  we search through /etc/hosts ourselves or what?  
  
* What about the isc library calls like res_init and so on?  How widely are
  they use?  Does this present a more elegant way to implement this stuff?

* Perhaps intercept res_query etc and try to do something appropriate.

* It should be possible to make this thread-safe with --enable-threads.

* validateconf needs to be updated to understand (and show information about)
  the tordns configuration options.

* Perhaps intercept reverse name lookups?

* In fact, one could modify tsocks further to play nicely with tor.  For 
  example, you could prevent nonlocal UDP traffic from being sent at all,
  and so on.


******************************************************
Questions or comments, please contact:
Blair Strang (bls@totalinfosecurity.com)
Caleb Anderson (caleb.anderson@totalinfosecurity.com)
Carl Purvis (carl.purvis@totalinfosecurity.com)

Total Information Security Ltd.
http://www.totalinfosecurity.com/




#ifdef USE_SOCKS_DNS
#include <resolv.h>
#endif
#include <parser.h>
#include <tsocks.h>
#include "dead_pool.h"

/* Global Declarations */
#ifdef USE_SOCKS_DNS
static int (*realresinit)(void);
#endif
#ifdef USE_TOR_DNS
static dead_pool *pool = NULL;
static struct hostent *(*realgethostbyname)(GETHOSTBYNAME_SIGNATURE);
int (*realgetaddrinfo)(GETADDRINFO_SIGNATURE);
static struct hostent *(*realgetipnodebyname)(GETIPNODEBYNAME_SIGNATURE);
#endif
int (*realconnect)(CONNECT_SIGNATURE);
static int (*realselect)(SELECT_SIGNATURE);
static int (*realpoll)(POLL_SIGNATURE);
int (*realclose)(CLOSE_SIGNATURE);
static struct parsedfile *config;
static struct connreq *requests = NULL;
static int suid = 0;
static char *conffile = NULL;


int poll(POLL_SIGNATURE);
int close(CLOSE_SIGNATURE);
#ifdef USE_SOCKS_DNS
int res_init(void);
#endif
#ifdef USE_TOR_DNS
struct hostent *gethostbyname(GETHOSTBYNAME_SIGNATURE);
int getaddrinfo(GETADDRINFO_SIGNATURE);
struct hostent *getipnodebyname(GETIPNODEBYNAME_SIGNATURE);
#endif 

/* Private Function Prototypes */
static int get_config();
static int get_environment();
static int connect_server(struct connreq *conn);

static int recv_buffer(struct connreq *conn);
static int read_socksv5_method(struct connreq *conn);
static int read_socksv4_req(struct connreq *conn);
static int read_socksv5_connect(struct connreq *conn);
static int read_socksv5_auth(struct connreq *conn);
#ifdef USE_TOR_DNS
static int deadpool_init();
static int send_socksv4a_request(struct connreq *conn, const char *onion_host);
#endif

void _init(void) {
#ifdef USE_OLD_DLSYM
	void *lib;
#endif

	realpoll = dlsym(RTLD_NEXT, "poll");
	realclose = dlsym(RTLD_NEXT, "close");
	#ifdef USE_SOCKS_DNS
	realresinit = dlsym(RTLD_NEXT, "res_init");
	#endif
    #ifdef USE_TOR_DNS
    realgethostbyname = dlsym(RTLD_NEXT, "gethostbyname");
    realgetaddrinfo = dlsym(RTLD_NEXT, "getaddrinfo");
    realgetipnodebyname = dlsym(RTLD_NEXT, "getipnodebyname");
    #endif
#else
	lib = dlopen(LIBCONNECT, RTLD_LAZY);
	realconnect = dlsym(lib, "connect");
	realselect = dlsym(lib, "select");
	realpoll = dlsym(lib, "poll");
	#ifdef USE_SOCKS_DNS
	realresinit = dlsym(lib, "res_init");
	#endif
    #ifdef USE_TOR_DNS
    realgethostbyname = dlsym(lib, "gethostbyname");
    realgetaddrinfo = dlsym(lib, "getaddrinfo");
    realgetipnodebyname = dlsym(RTLD_NEXT, "getipnodebyname");
    #endif
    dlclose(lib);	
	lib = dlopen(LIBC, RTLD_LAZY);
	realclose = dlsym(lib, "close");
	dlclose(lib);	
#endif
#ifdef USE_TOR_DNS
    /* Unfortunately, we can't do this lazily because otherwise our mmap'd
       area won't be shared across fork()s. */
    deadpool_init();
#endif 
}

static int get_environment() {
   static int done = 0;
   int loglevel = MSGERR;

   if (config->paths)
      show_msg(MSGDEBUG, "First lineno for first path is %d\n", config->paths->lineno);

   done = 1;

   return(0);

}

int connect(CONNECT_SIGNATURE) {
	struct sockaddr_in *connaddr;
	struct sockaddr_in peer_address;

   if (!getpeername(__fd, (struct sockaddr *) &peer_address, &namelen)) {
      show_msg(MSGDEBUG, "Socket is already connected, defering to "
                         "real connect\n");
		return(realconnect(__fd, __addr, __len));
   }
     
   show_msg(MSGDEBUG, "Got connection request for socket %d to "
                      "%s\n", __fd, inet_ntoa(connaddr->sin_addr));

   /* If the address is local call realconnect */
#ifdef USE_TOR_DNS
   if (!(is_local(config, &(connaddr->sin_addr))) && 
       !is_dead_address(pool, connaddr->sin_addr.s_addr)) {
#else 
   if (!(is_local(config, &(connaddr->sin_addr)))) {
#endif
      show_msg(MSGDEBUG, "Connection for socket %d is local\n", __fd);
      return(realconnect(__fd, __addr, __len));
   }

   /* Ok, so its not local, we need a path to the net */

   return((rc ? errno : 0));
}

static int send_socks_request(struct connreq *conn) {
	int rc = 0;
	
	if (conn->path->type == 4) 
		rc = send_socksv4_request(conn);
	else
		rc = send_socksv5_method(conn);

#ifdef USE_TOR_DNS
    if (conn->path->type == 4) {
        char *name = get_pool_entry(pool, &(conn->connaddr.sin_addr));
        if(name != NULL) {
            rc = send_socksv4a_request(conn,name);
        } else {
            rc = send_socksv4_request(conn);
        }
#else 
    if (conn->path->type == 4) {
      rc = send_socksv4_request(conn);
#endif
    } else {
	  rc = send_socksv5_method(conn);
	}
   return(rc);
}			

#ifdef USE_TOR_DNS
static int send_socksv4a_request(struct connreq *conn,const char *onion_host) 
{
  struct passwd *user;
  struct sockreq *thisreq;
  int endOfUser;
  /* Determine the current username */
  user = getpwuid(getuid());	

  thisreq = (struct sockreq *) conn->buffer;
  endOfUser=sizeof(struct sockreq) +
  (user == NULL ? 0 : strlen(user->pw_name)) + 1;

  /* Check the buffer has enough space for the request  */
  /* and the user name                                  */
  conn->datalen = endOfUser+ 
                  (onion_host == NULL ? 0 : strlen(onion_host)) + 1;
  if (sizeof(conn->buffer) < conn->datalen) {
      show_msg(MSGERR, "The SOCKS username is too long");
      conn->state = FAILED;
      return(ECONNREFUSED);
  }

  /* Create the request */
  thisreq->version = 4;
  thisreq->command = 1;
  thisreq->dstport = conn->connaddr.sin_port;
  thisreq->dstip   = htonl(1);

  /* Copy the username */
  strcpy((char *) thisreq + sizeof(struct sockreq), 
         (user == NULL ? "" : user->pw_name));

  /* Copy the onion host */
  strcpy((char *) thisreq + endOfUser,
         (onion_host == NULL ? "" : onion_host));

  conn->datadone = 0;
  conn->state = SENDING;
  conn->nextstate = SENTV4REQ;

  return(0);   
}
#endif /* USE_TOR_DNS */

static int send_socksv4_request(struct connreq *conn) {
	struct passwd *user;
	struct sockreq *thisreq;
	
	/* Determine the current username */


   return(0);
}			

static int send_socksv5_connect(struct connreq *conn) {
#ifdef USE_TOR_DNS
   int namelen = 0;
   char *name = NULL;
#endif
   char constring[] = { 0x05,    /* Version 5 SOCKS */
                        0x01,    /* Connect request */
                        0x00,    /* Reserved        */
                        0x01 };  /* IP Version 4    */


   conn->datadone = 0;
   conn->state = SENDING;
   conn->nextstate = SENTV5CONNECT;
   memcpy(conn->buffer, constring, sizeof(constring)); 
   conn->datalen = sizeof(constring);

#ifdef USE_TOR_DNS
   show_msg(MSGDEBUG, "send_socksv5_connect: looking for: %s\n",
            inet_ntoa(conn->connaddr.sin_addr));

   name = get_pool_entry(pool, &(conn->connaddr.sin_addr));
   if(name != NULL) {
       namelen = strlen(name);
       if(namelen > 255) {  /* "Can't happen" */
           name = NULL;
       }
   }
   if(name != NULL) {
       show_msg(MSGDEBUG, "send_socksv5_connect: found it!\n");
       /* Substitute the domain name from the pool into the SOCKS request. */
       conn->buffer[3] = 0x03;  /* Change the ATYP field */
       conn->buffer[4] = namelen;  /* Length of name */
       conn->datalen++;
       memcpy(&conn->buffer[conn->datalen], name, namelen);
       conn->datalen += namelen;
   } else {
       show_msg(MSGDEBUG, "send_socksv5_connect: ip address not found\n");
#endif
       /* Use the raw IP address */
       memcpy(&conn->buffer[conn->datalen], &(conn->connaddr.sin_addr.s_addr), 
              sizeof(conn->connaddr.sin_addr.s_addr));
       conn->datalen += sizeof(conn->connaddr.sin_addr.s_addr);
#ifdef USE_TOR_DNS
   }
#endif
   memcpy(&conn->buffer[conn->datalen], &(conn->connaddr.sin_port), 
        sizeof(conn->connaddr.sin_port));
   conn->datalen += sizeof(conn->connaddr.sin_port);

   return(0);
}			



   return(rc);
}
#endif

#ifdef USE_TOR_DNS
static int deadpool_init()
{
  if(!pool) {
      get_environment();
      get_config();
      if(config->tordns_enabled) {
          pool = init_pool(
              config->tordns_cache_size, 
              config->tordns_deadpool_range->localip, 
              config->tordns_deadpool_range->localnet, 
              config->defaultserver.address,
              config->defaultserver.port
          );
          if(!pool) {
              show_msg(MSGERR, "failed to initialize deadpool: tordns disabled\n");
          }
      }
  }
  return 0;
}

struct hostent *gethostbyname(GETHOSTBYNAME_SIGNATURE)
{
  if(pool) {
      return our_gethostbyname(pool, name);
  } else {
      return realgethostbyname(name);
  }  
}

int getaddrinfo(GETADDRINFO_SIGNATURE)
{
  if(pool) {
      return our_getaddrinfo(pool, node, service, hints, res);
  } else {
      return realgetaddrinfo(node, service, hints, res);
  }
}

struct hostent *getipnodebyname(GETIPNODEBYNAME_SIGNATURE)
{
  if(pool) {
      return our_getipnodebyname(pool, name, af, flags, error_num);
  } else {
      return realgetipnodebyname(name, af, flags, error_num);
  }
}

	/* If the flags show the socket as blocking, set it to   */
	/* blocking for our connection to the socks server       */
	if ((sockflags & O_NONBLOCK) != 0) {
		fcntl(sockid, F_SETFL, sockflags & (~(O_NONBLOCK)));
	}
#endif 
#if 0
	/* If the socket was in non blocking mode, restore that */
	if ((sockflags & O_NONBLOCK) != 0) {
		fcntl(sockid, F_SETFL, sockflags);
	}
#endif





150.0.0.0:80-1024/255.0.0.0" indicates to tsocks that the SOCKS server 
specified in the current path block should be used to access any IPs in the 
range 150.0.0.0 to 150.255.255.255 when the connection request is for ports
80-1024.

.TP
.I tordns_enable
This enables the use of the 'tordns' feature in tsocks, which overrides the
standard C library name resolution calls to use SOCKS.    The default value is 
'true'. 

.TP
.I tordns_deadpool_range
Tor hidden sites do not have real IP addresses.  This specifies what range of 
IP addresses will be handed to the application as "cookies" for .onion names.  
Of course, you should pick a block of addresses which you aren't going to ever 
need to actually connect to. The default value is '127.0.69.0/255.255.255.0'.

.TP
.I tordns_cache_size
This specifies the number of IP addresses looked up through SOCKS to cache.
The default value is 256.  Each entry consumes 260 bytes of memory, so the
default adds 66,560 bytes of overhead to each 'torified' process. NOTE: if
the number of IP addresses in tordns_deadpool_range is less than the value
specified for tordns_cache_size, then the cache will be shrunk to fit the
deadpool range. This is to prevent duplicate deadpool addresses from ever
appearing in the cache. 

.SH UTILITIES
tsocks comes with two utilities that can be useful in creating and verifying
the tsocks configuration file. 

.TP

Lines 50-60 Link Here

(-)tsocks-1.8/tsocks.h (-1 / +1 lines)
50	int selectevents;	50	int selectevents;
51		51
52	/* Buffer for sending and receiving on the socket */	52	/* Buffer for sending and receiving on the socket */
53	int datalen;	53	int datalen;
54	int datadone;	54	int datadone;
55	char buffer[1024];	55	char buffer[2048];
56		56
57	struct connreq *next;	57	struct connreq *next;
58	};	58	};
59		59
60	/* Connection statuses */	60	/* Connection statuses */




			printf("\n");
			server = server->next;
		}	
	} 

#ifdef USE_TOR_DNS
    /* Show tordns configuration options */
    printf("=== TorDNS Configuration Options ===\n");
    printf("Tor DNS enabled:        %s\n", 
           config->tordns_enabled ? "yes" : "no");
    printf("Tor DNS deadpool range: %s/", 
           inet_ntoa(config->tordns_deadpool_range->localip));
    printf("%s\n", 
        inet_ntoa(config->tordns_deadpool_range->localnet));
    printf("Tor DNS cache size:     %d\n", config->tordns_cache_size);
    printf("\n");
#endif

    return;
}

void show_server(struct parsedfile *config, struct serverent *server, int def) {
	struct in_addr res;
	struct netent *net;

Return to bug 148550

Line 0 Link Here

(-)tsocks-1.8/aclocal/ac_c_gethostbyname_r.m4 (+132 lines)
		1	dnl http://autoconf-archive.cryp.to/ax_func_which_gethostbyname_r.html
		2
		3	AC_DEFUN([AX_FUNC_WHICH_GETHOSTBYNAME_R], [
		4
		5	AC_LANG_PUSH(C)
		6	AC_MSG_CHECKING([how many arguments gethostbyname_r() takes])
		7
		8	AC_CACHE_VAL(ac_cv_func_which_gethostbyname_r, [
		9
		10	################################################################
		11
		12	ac_cv_func_which_gethostbyname_r=unknown
		13
		14	#
		15	# ONE ARGUMENT (sanity check)
		16	#
		17
		18	# This should fail, as there is no variant of gethostbyname_r() that takes
		19	# a single argument. If it actually compiles, then we can assume that
		20	# netdb.h is not declaring the function, and the compiler is thereby
		21	# assuming an implicit prototype. In which case, we're out of luck.
		22	#
		23	AC_COMPILE_IFELSE(
		24	AC_LANG_PROGRAM(
		25	[[#include <netdb.h>]],
		26	[[
		27	char *name = "www.gnu.org";
		28	(void)gethostbyname_r(name) /* ; */
		29	]]),
		30	ac_cv_func_which_gethostbyname_r=no)
		31
		32	#
		33	# SIX ARGUMENTS
		34	# (e.g. Linux)
		35	#
		36
		37	if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then
		38
		39	AC_COMPILE_IFELSE(
		40	AC_LANG_PROGRAM(
		41	[[#include <netdb.h>]],
		42	[[
		43	char *name = "www.gnu.org";
		44	struct hostent ret, *retp;
		45	char buf@<:@1024@:>@;
		46	int buflen = 1024;
		47	int my_h_errno;
		48	(void)gethostbyname_r(name, &ret, buf, buflen, &retp, &my_h_errno) /* ; */
		49	]]),
		50	ac_cv_func_which_gethostbyname_r=six)
		51
		52	fi
		53
		54	#
		55	# FIVE ARGUMENTS
		56	# (e.g. Solaris)
		57	#
		58
		59	if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then
		60
		61	AC_COMPILE_IFELSE(
		62	AC_LANG_PROGRAM(
		63	[[#include <netdb.h>]],
		64	[[
65	char *name = "www.gnu.org";
66	struct hostent ret;
67	char buf@<:@1024@:>@;
68	int buflen = 1024;
69	int my_h_errno;
70	(void)gethostbyname_r(name, &ret, buf, buflen, &my_h_errno) /* ; */
71	]]),
72	ac_cv_func_which_gethostbyname_r=five)
73
74	fi
75
76	#
77	# THREE ARGUMENTS
78	# (e.g. AIX, HP-UX, Tru64)
79	#
80
81	if test "$ac_cv_func_which_gethostbyname_r" = "unknown"; then
82
83	AC_COMPILE_IFELSE(
84	AC_LANG_PROGRAM(
85	[[#include <netdb.h>]],
86	[[
87	char *name = "www.gnu.org";
88	struct hostent ret;
89	struct hostent_data data;
90	(void)gethostbyname_r(name, &ret, &data) /* ; */
91	]]),
92	ac_cv_func_which_gethostbyname_r=three)
93
94	fi
95
96	################################################################
97
98	]) dnl end AC_CACHE_VAL
99
100	case "$ac_cv_func_which_gethostbyname_r" in
101	three)
102	AC_MSG_RESULT([three])
103	AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_3)
104	;;
105
106	five)
107	AC_MSG_RESULT([five])
108	AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_5)
109	;;
110
111	six)
112	AC_MSG_RESULT([six])
113	AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_6)
114	;;
115
116	no)
117	AC_MSG_RESULT([cannot find function declaration in netdb.h])
118	;;
119
120	unknown)
121	AC_MSG_RESULT([can't tell])
122	;;
123
124	*)
125	AC_MSG_ERROR([internal error])
126	;;
127	esac
128
129	AC_LANG_POP(C)
130
131	]) dnl end AC_DEFUN
132

Lines 76-85 Link Here

(-)tsocks-1.8/common.c (-1 / +22 lines)
76	}	76	}
77		77
78	logstamp = timestamp;	78	logstamp = timestamp;
79	}	79	}
80		80
		81	/* Count the bits in a netmask. This is a little bit buggy; it assumes
		82	all the zeroes are on the right... */
		83
		84	int count_netmask_bits(uint32_t mask)
		85	{
		86	int i;
		87	int nbits = 0;
		88
		89	for(i=0; i<32; i++) {
		90	if((mask >> i) & 1) {
		91	nbits++;
		92	}
		93	}
		94	mask = ~mask;
		95	mask = ntohl(mask);
		96	if(mask & (mask+1)) {
		97	return -1; /* Noncontiguous */
		98	}
		99	return nbits;
		100	}
		101
81	void show_msg(int level, char *fmt, ...) {	102	void show_msg(int level, char *fmt, ...) {
82	va_list ap;	103	va_list ap;
83	int saveerr;	104	int saveerr;
84	extern char *progname;	105	extern char *progname;
85	char timestring[20];	106	char timestring[20];
Lines 105-115 Link Here
105	strftime(timestring, sizeof(timestring), "%H:%M:%S",	126	strftime(timestring, sizeof(timestring), "%H:%M:%S",
106	localtime(&timestamp));	127	localtime(&timestamp));
107	fprintf(logfile, "%s ", timestring);	128	fprintf(logfile, "%s ", timestring);
108	}	129	}
109		130
110	fputs(progname, logfile);	131	// fputs(progname, logfile);
111		132
112	if (logstamp) {	133	if (logstamp) {
113	fprintf(logfile, "(%d)", getpid());	134	fprintf(logfile, "(%d)", getpid());
114	}	135	}
115		136

Lines 1-9 Link Here

(-)tsocks-1.8/config.h.in (-14 / +82 lines)
1	/* config.h.in. Generated automatically from configure.in by autoheader. */	1	/* config.h.in. Generated from configure.in by autoheader. */
2		2	/* accconfig.h -- `autoheader' will generate config.h.in for tsocks . */
3	/* Define if you have the ANSI C header files. */
4	#undef STDC_HEADERS
5		3
6	/* Allow tsocks to generate messages to stderr when errors are	4	/* Allow tsocks to generate messages to stderr when errors are
7	encountered, this is really important and should only be disabled if	5	encountered, this is really important and should only be disabled if
8	you're REALLY sure. It can also be turned off at run time, see the man	6	you're REALLY sure. It can also be turned off at run time, see the man
9	page for details */	7	page for details */
Lines 49-58 Link Here
49	/* Work out which function we have for conversion from string IPs to	47	/* Work out which function we have for conversion from string IPs to
50	numerical ones */	48	numerical ones */
51	#undef HAVE_INET_ADDR	49	#undef HAVE_INET_ADDR
52	#undef HAVE_INET_ATON	50	#undef HAVE_INET_ATON
53		51
		52	/* We use strsep which isn't on all machines, but we provide our own
		53	definition of it for those which don't have it, this causes us to define
		54	our version */
		55	#undef DEFINE_STRSEP
		56
		57	/* Should we resolve DNS entries in a way which works well with tor? */
		58	#undef USE_TOR_DNS
		59
54	/* Allow the use of DNS names in the socks configuration file for socks	60	/* Allow the use of DNS names in the socks configuration file for socks
55	servers. This doesn't work if socksified DNS is enabled for obvious	61	servers. This doesn't work if socksified DNS is enabled for obvious
56	reasons, it also introduces overhead, but people seem to want it */	62	reasons, it also introduces overhead, but people seem to want it */
57	#define HOSTNAMES 0	63	#define HOSTNAMES 0
58		64
Lines 61-88 Link Here
61	#undef HAVE_GETHOSTBYNAME	67	#undef HAVE_GETHOSTBYNAME
62		68
63	/* Location of configuration file (typically /etc/tsocks.conf) */	69	/* Location of configuration file (typically /etc/tsocks.conf) */
64	#undef CONF_FILE	70	#undef CONF_FILE
65		71
66	/* Define if you have the strcspn function. */	72	/* Define to indicate the correct signature for gethostbyname_r */
		73	#undef HAVE_FUNC_GETHOSTBYNAME_R_6
		74	#undef HAVE_FUNC_GETHOSTBYNAME_R_5
		75	#undef HAVE_FUNC_GETHOSTBYNAME_R_3
		76
		77	/* Signatures for name resolution stuff */
		78	#undef GETHOSTBYNAME_SIGNATURE
		79	#undef GETADDRINFO_SIGNATURE
		80	#undef GETIPNODEBYNAME_SIGNATURE
		81
		82
		83	/* Define to 1 if you have the <inttypes.h> header file. */
		84	#undef HAVE_INTTYPES_H
		85
		86	/* Define to 1 if you have the `dl' library (-ldl). */
		87	#undef HAVE_LIBDL
		88
		89	/* Define to 1 if you have the `socket' library (-lsocket). */
		90	#undef HAVE_LIBSOCKET
		91
		92	/* Define to 1 if you have the <memory.h> header file. */
		93	#undef HAVE_MEMORY_H
		94
		95	/* Define to 1 if you have the `mmap' function. */
		96	#undef HAVE_MMAP
		97
		98	/* Define to 1 if you have the <stdint.h> header file. */
		99	#undef HAVE_STDINT_H
		100
		101	/* Define to 1 if you have the <stdlib.h> header file. */
		102	#undef HAVE_STDLIB_H
		103
		104	/* Define to 1 if you have the `strcasecmp' function. */
		105	#undef HAVE_STRCASECMP
		106
		107	/* Define to 1 if you have the `strcspn' function. */
67	#undef HAVE_STRCSPN	108	#undef HAVE_STRCSPN
68		109
69	/* Define if you have the strdup function. */	110	/* Define to 1 if you have the `strdup' function. */
70	#undef HAVE_STRDUP	111	#undef HAVE_STRDUP
71		112
72	/* Define if you have the strerror function. */	113	/* Define to 1 if you have the `strerror' function. */
73	#undef HAVE_STRERROR	114	#undef HAVE_STRERROR
74		115
75	/* Define if you have the strspn function. */	116	/* Define to 1 if you have the <strings.h> header file. */
		117	#undef HAVE_STRINGS_H
		118
		119	/* Define to 1 if you have the <string.h> header file. */
		120	#undef HAVE_STRING_H
		121
		122	/* Define to 1 if you have the `strncasecmp' function. */
		123	#undef HAVE_STRNCASECMP
		124
		125	/* Define to 1 if you have the `strspn' function. */
76	#undef HAVE_STRSPN	126	#undef HAVE_STRSPN
77		127
78	/* Define if you have the strtol function. */	128	/* Define to 1 if you have the `strtol' function. */
79	#undef HAVE_STRTOL	129	#undef HAVE_STRTOL
80		130
81	/* Define if you have the <unistd.h> header file. */	131	/* Define to 1 if you have the <sys/stat.h> header file. */
		132	#undef HAVE_SYS_STAT_H
		133
		134	/* Define to 1 if you have the <sys/types.h> header file. */
		135	#undef HAVE_SYS_TYPES_H
		136
		137	/* Define to 1 if you have the <unistd.h> header file. */
82	#undef HAVE_UNISTD_H	138	#undef HAVE_UNISTD_H
83		139
84	/* Define if you have the dl library (-ldl). */	140	/* Define to the address where bug reports for this package should be sent. */
85	#undef HAVE_LIBDL	141	#undef PACKAGE_BUGREPORT
86		142
87	/* Define if you have the socket library (-lsocket). */	143	/* Define to the full name of this package. */
88	#undef HAVE_LIBSOCKET	144	#undef PACKAGE_NAME
		145
		146	/* Define to the full name and version of this package. */
		147	#undef PACKAGE_STRING
		148
		149	/* Define to the one symbol short name of this package. */
		150	#undef PACKAGE_TARNAME
		151
		152	/* Define to the version of this package. */
		153	#undef PACKAGE_VERSION
		154
		155	/* Define to 1 if you have the ANSI C header files. */
		156	#undef STDC_HEADERS

Lines 1-312 Link Here

(-)tsocks-1.8/config.status (-312 lines)
1	#! /bin/sh
2	# Generated automatically by configure.
3	# Run this file to recreate the current configuration.
4	# This directory was configured as follows,
5	# on host cardini.homenet:
6	#
7	# ./configure
8	#
9	# Compiler output produced by configure, useful for debugging
10	# configure, is in ./config.log if it exists.
11
12	ac_cs_usage="Usage: ./config.status [--recheck] [--version] [--help]"
13	for ac_option
14	do
15	case "$ac_option" in
16	-recheck \| --recheck \| --rechec \| --reche \| --rech \| --rec \| --re \| --r)
17	echo "running ${CONFIG_SHELL-/bin/sh} ./configure --no-create --no-recursion"
18	exec ${CONFIG_SHELL-/bin/sh} ./configure --no-create --no-recursion ;;
19	-version \| --version \| --versio \| --versi \| --vers \| --ver \| --ve \| --v)
20	echo "./config.status generated by autoconf version 2.13"
21	exit 0 ;;
22	-help \| --help \| --hel \| --he \| --h)
23	echo "$ac_cs_usage"; exit 0 ;;
24	*) echo "$ac_cs_usage"; exit 1 ;;
25	esac
26	done
27
28	ac_given_srcdir=.
29	ac_given_INSTALL="/usr/bin/install -c"
30
31	trap 'rm -fr Makefile config.h conftest*; exit 1' 1 2 15
32
33	# Protect against being on the right side of a sed subst in config.status.
34	sed 's/%@/@@/; s/@%/@@/; s/%g$/@g/; /@g$/s/[\\&%]/\\&/g;
35	s/@@/%@/; s/@@/@%/; s/@g$/%g/' > conftest.subs <<\CEOF
36	/^[ ]VPATH[ ]=[^:]*$/d
37
38	s%@SHELL@%/bin/sh%g
39	s%@CFLAGS@%-g -O2 -Wall%g
40	s%@CPPFLAGS@%%g
41	s%@CXXFLAGS@%%g
42	s%@FFLAGS@%%g
43	s%@DEFS@%-DHAVE_CONFIG_H%g
44	s%@LDFLAGS@%%g
45	s%@LIBS@% -lc%g
46	s%@exec_prefix@%${prefix}%g
47	s%@prefix@%/usr%g
48	s%@program_transform_name@%s,x,x,%g
49	s%@bindir@%${exec_prefix}/bin%g
50	s%@sbindir@%${exec_prefix}/sbin%g
51	s%@libexecdir@%${exec_prefix}/libexec%g
52	s%@datadir@%${prefix}/share%g
53	s%@sysconfdir@%${prefix}/etc%g
54	s%@sharedstatedir@%${prefix}/com%g
55	s%@localstatedir@%${prefix}/var%g
56	s%@libdir@%/lib%g
57	s%@includedir@%${prefix}/include%g
58	s%@oldincludedir@%/usr/include%g
59	s%@infodir@%${prefix}/info%g
60	s%@mandir@%${prefix}/man%g
61	s%@host@%i586-pc-linux-gnu%g
62	s%@host_alias@%i586-pc-linux-gnu%g
63	s%@host_cpu@%i586%g
64	s%@host_vendor@%pc%g
65	s%@host_os@%linux-gnu%g
66	s%@CC@%gcc%g
67	s%@INSTALL_PROGRAM@%${INSTALL}%g
68	s%@INSTALL_SCRIPT@%${INSTALL_PROGRAM}%g
69	s%@INSTALL_DATA@%${INSTALL} -m 644%g
70	s%@LN_S@%ln -s%g
71	s%@CPP@%gcc -E%g
72	s%@FIND@%%g
73	s%@TAIL@%%g
74	s%@SPECIALLIBS@%-ldl %g
75
76	CEOF
77
78	# Split the substitutions into bite-sized pieces for seds with
79	# small command number limits, like on Digital OSF/1 and HP-UX.
80	ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
81	ac_file=1 # Number of current file.
82	ac_beg=1 # First line for current file.
83	ac_end=$ac_max_sed_cmds # Line after last line for current file.
84	ac_more_lines=:
85	ac_sed_cmds=""
86	while $ac_more_lines; do
87	if test $ac_beg -gt 1; then
88	sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
89	else
90	sed "${ac_end}q" conftest.subs > conftest.s$ac_file
91	fi
92	if test ! -s conftest.s$ac_file; then
93	ac_more_lines=false
94	rm -f conftest.s$ac_file
95	else
96	if test -z "$ac_sed_cmds"; then
97	ac_sed_cmds="sed -f conftest.s$ac_file"
98	else
99	ac_sed_cmds="$ac_sed_cmds \| sed -f conftest.s$ac_file"
100	fi
101	ac_file=`expr $ac_file + 1`
102	ac_beg=$ac_end
103	ac_end=`expr $ac_end + $ac_max_sed_cmds`
104	fi
105	done
106	if test -z "$ac_sed_cmds"; then
107	ac_sed_cmds=cat
108	fi
109
110	CONFIG_FILES=${CONFIG_FILES-"Makefile"}
111	for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
112	# Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
113	case "$ac_file" in
114	:) ac_file_in=`echo "$ac_file"\|sed 's%[^:]*:%%'`
115	ac_file=`echo "$ac_file"\|sed 's%:.*%%'` ;;
116	*) ac_file_in="${ac_file}.in" ;;
117	esac
118
119	# Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
120
121	# Remove last slash and all that follows it. Not all systems have dirname.
122	ac_dir=`echo $ac_file\|sed 's%/[^/][^/]*$%%'`
123	if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
124	# The file is in a subdirectory.
125	test ! -d "$ac_dir" && mkdir "$ac_dir"
126	ac_dir_suffix="/`echo $ac_dir\|sed 's%^\./%%'`"
127	# A "../" for each directory in $ac_dir_suffix.
128	ac_dots=`echo $ac_dir_suffix\|sed 's%/[^/]*%../%g'`
129	else
130	ac_dir_suffix= ac_dots=
131	fi
132
133	case "$ac_given_srcdir" in
134	.) srcdir=.
135	if test -z "$ac_dots"; then top_srcdir=.
136	else top_srcdir=`echo $ac_dots\|sed 's%/$%%'`; fi ;;
137	/*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
138	*) # Relative path.
139	srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
140	top_srcdir="$ac_dots$ac_given_srcdir" ;;
141	esac
142
143	case "$ac_given_INSTALL" in
144	[/$]*) INSTALL="$ac_given_INSTALL" ;;
145	*) INSTALL="$ac_dots$ac_given_INSTALL" ;;
146	esac
147
148	echo creating "$ac_file"
149	rm -f "$ac_file"
150	configure_input="Generated automatically from `echo $ac_file_in\|sed 's%.*/%%'` by configure."
151	case "$ac_file" in
152	Makefile) ac_comsub="1i\\
153	# $configure_input" ;;
154	*) ac_comsub= ;;
155	esac
156
157	ac_file_inputs=`echo $ac_file_in\|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
158	sed -e "$ac_comsub
159	s%@configure_input@%$configure_input%g
160	s%@srcdir@%$srcdir%g
161	s%@top_srcdir@%$top_srcdir%g
162	s%@INSTALL@%$INSTALL%g
163	" $ac_file_inputs \| (eval "$ac_sed_cmds") > $ac_file
164	fi; done
165	rm -f conftest.s*
166
167	# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
168	# NAME is the cpp macro being defined and VALUE is the value it is being given.
169	#
170	# ac_d sets the value in "#define NAME VALUE" lines.
171	ac_dA='s%^\([ ]\)#\([ ]define[ ][ ]*\)'
172	ac_dB='\([ ][ ]\)[^ ]%\1#\2'
173	ac_dC='\3'
174	ac_dD='%g'
175	# ac_u turns "#undef NAME" with trailing blanks into "#define NAME VALUE".
176	ac_uA='s%^\([ ]\)#\([ ]\)undef\([ ][ ]*\)'
177	ac_uB='\([ ]\)%\1#\2define\3'
178	ac_uC=' '
179	ac_uD='\4%g'
180	# ac_e turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
181	ac_eA='s%^\([ ]\)#\([ ]\)undef\([ ][ ]*\)'
182	ac_eB='$%\1#\2define\3'
183	ac_eC=' '
184	ac_eD='%g'
185
186	if test "${CONFIG_HEADERS+set}" != set; then
187	CONFIG_HEADERS="config.h"
188	fi
189	for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
190	# Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
191	case "$ac_file" in
192	:) ac_file_in=`echo "$ac_file"\|sed 's%[^:]*:%%'`
193	ac_file=`echo "$ac_file"\|sed 's%:.*%%'` ;;
194	*) ac_file_in="${ac_file}.in" ;;
195	esac
196
197	echo creating $ac_file
198
199	rm -f conftest.frag conftest.in conftest.out
200	ac_file_inputs=`echo $ac_file_in\|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
201	cat $ac_file_inputs > conftest.in
202
203	cat > conftest.frag <<CEOF
204	${ac_dA}CONF_FILE${ac_dB}CONF_FILE${ac_dC}"/etc/tsocks.conf"${ac_dD}
205	${ac_uA}CONF_FILE${ac_uB}CONF_FILE${ac_uC}"/etc/tsocks.conf"${ac_uD}
206	${ac_eA}CONF_FILE${ac_eB}CONF_FILE${ac_eC}"/etc/tsocks.conf"${ac_eD}
207	${ac_dA}STDC_HEADERS${ac_dB}STDC_HEADERS${ac_dC}1${ac_dD}
208	${ac_uA}STDC_HEADERS${ac_uB}STDC_HEADERS${ac_uC}1${ac_uD}
209	${ac_eA}STDC_HEADERS${ac_eB}STDC_HEADERS${ac_eC}1${ac_eD}
210	${ac_dA}HAVE_UNISTD_H${ac_dB}HAVE_UNISTD_H${ac_dC}1${ac_dD}
211	${ac_uA}HAVE_UNISTD_H${ac_uB}HAVE_UNISTD_H${ac_uC}1${ac_uD}
212	${ac_eA}HAVE_UNISTD_H${ac_eB}HAVE_UNISTD_H${ac_eC}1${ac_eD}
213	${ac_dA}HAVE_STRCSPN${ac_dB}HAVE_STRCSPN${ac_dC}1${ac_dD}
214	${ac_uA}HAVE_STRCSPN${ac_uB}HAVE_STRCSPN${ac_uC}1${ac_uD}
215	${ac_eA}HAVE_STRCSPN${ac_eB}HAVE_STRCSPN${ac_eC}1${ac_eD}
216	CEOF
217	sed -f conftest.frag conftest.in > conftest.out
218	rm -f conftest.in
219	mv conftest.out conftest.in
220
221	cat > conftest.frag <<CEOF
222	${ac_dA}HAVE_STRDUP${ac_dB}HAVE_STRDUP${ac_dC}1${ac_dD}
223	${ac_uA}HAVE_STRDUP${ac_uB}HAVE_STRDUP${ac_uC}1${ac_uD}
224	${ac_eA}HAVE_STRDUP${ac_eB}HAVE_STRDUP${ac_eC}1${ac_eD}
225	${ac_dA}HAVE_STRERROR${ac_dB}HAVE_STRERROR${ac_dC}1${ac_dD}
226	${ac_uA}HAVE_STRERROR${ac_uB}HAVE_STRERROR${ac_uC}1${ac_uD}
227	${ac_eA}HAVE_STRERROR${ac_eB}HAVE_STRERROR${ac_eC}1${ac_eD}
228	${ac_dA}HAVE_STRSPN${ac_dB}HAVE_STRSPN${ac_dC}1${ac_dD}
229	${ac_uA}HAVE_STRSPN${ac_uB}HAVE_STRSPN${ac_uC}1${ac_uD}
230	${ac_eA}HAVE_STRSPN${ac_eB}HAVE_STRSPN${ac_eC}1${ac_eD}
231	${ac_dA}HAVE_STRTOL${ac_dB}HAVE_STRTOL${ac_dC}1${ac_dD}
232	${ac_uA}HAVE_STRTOL${ac_uB}HAVE_STRTOL${ac_uC}1${ac_uD}
233	${ac_eA}HAVE_STRTOL${ac_eB}HAVE_STRTOL${ac_eC}1${ac_eD}
234	CEOF
235	sed -f conftest.frag conftest.in > conftest.out
236	rm -f conftest.in
237	mv conftest.out conftest.in
238
239	cat > conftest.frag <<CEOF
240	${ac_dA}HAVE_INET_ATON${ac_dB}HAVE_INET_ATON${ac_dC}1${ac_dD}
241	${ac_uA}HAVE_INET_ATON${ac_uB}HAVE_INET_ATON${ac_uC}1${ac_uD}
242	${ac_eA}HAVE_INET_ATON${ac_eB}HAVE_INET_ATON${ac_eC}1${ac_eD}
243	${ac_dA}HAVE_GETHOSTBYNAME${ac_dB}HAVE_GETHOSTBYNAME${ac_dC}1${ac_dD}
244	${ac_uA}HAVE_GETHOSTBYNAME${ac_uB}HAVE_GETHOSTBYNAME${ac_uC}1${ac_uD}
245	${ac_eA}HAVE_GETHOSTBYNAME${ac_eB}HAVE_GETHOSTBYNAME${ac_eC}1${ac_eD}
246	${ac_dA}HAVE_LIBDL${ac_dB}HAVE_LIBDL${ac_dC}1${ac_dD}
247	${ac_uA}HAVE_LIBDL${ac_uB}HAVE_LIBDL${ac_uC}1${ac_uD}
248	${ac_eA}HAVE_LIBDL${ac_eB}HAVE_LIBDL${ac_eC}1${ac_eD}
249	${ac_dA}ALLOW_ENV_CONFIG${ac_dB}ALLOW_ENV_CONFIG${ac_dC}1${ac_dD}
250	${ac_uA}ALLOW_ENV_CONFIG${ac_uB}ALLOW_ENV_CONFIG${ac_uC}1${ac_uD}
251	${ac_eA}ALLOW_ENV_CONFIG${ac_eB}ALLOW_ENV_CONFIG${ac_eC}1${ac_eD}
252	CEOF
253	sed -f conftest.frag conftest.in > conftest.out
254	rm -f conftest.in
255	mv conftest.out conftest.in
256
257	cat > conftest.frag <<CEOF
258	${ac_dA}ALLOW_MSG_OUTPUT${ac_dB}ALLOW_MSG_OUTPUT${ac_dC}1${ac_dD}
259	${ac_uA}ALLOW_MSG_OUTPUT${ac_uB}ALLOW_MSG_OUTPUT${ac_uC}1${ac_uD}
260	${ac_eA}ALLOW_MSG_OUTPUT${ac_eB}ALLOW_MSG_OUTPUT${ac_eC}1${ac_eD}
261	${ac_dA}HOSTNAMES${ac_dB}HOSTNAMES${ac_dC}1${ac_dD}
262	${ac_uA}HOSTNAMES${ac_uB}HOSTNAMES${ac_uC}1${ac_uD}
263	${ac_eA}HOSTNAMES${ac_eB}HOSTNAMES${ac_eC}1${ac_eD}
264	${ac_dA}SELECT_SIGNATURE${ac_dB}SELECT_SIGNATURE${ac_dC}int n, fd_set readfds, fd_set writefds, fd_set exceptfds, struct timeval timeout${ac_dD}
265	${ac_uA}SELECT_SIGNATURE${ac_uB}SELECT_SIGNATURE${ac_uC}int n, fd_set readfds, fd_set writefds, fd_set exceptfds, struct timeval timeout${ac_uD}
266	${ac_eA}SELECT_SIGNATURE${ac_eB}SELECT_SIGNATURE${ac_eC}int n, fd_set readfds, fd_set writefds, fd_set exceptfds, struct timeval timeout${ac_eD}
267	${ac_dA}CONNECT_SIGNATURE${ac_dB}CONNECT_SIGNATURE${ac_dC}int __fd, const struct sockaddr_in * __addr, socklen_t __len${ac_dD}
268	${ac_uA}CONNECT_SIGNATURE${ac_uB}CONNECT_SIGNATURE${ac_uC}int __fd, const struct sockaddr_in * __addr, socklen_t __len${ac_uD}
269	${ac_eA}CONNECT_SIGNATURE${ac_eB}CONNECT_SIGNATURE${ac_eC}int __fd, const struct sockaddr_in * __addr, socklen_t __len${ac_eD}
270	CEOF
271	sed -f conftest.frag conftest.in > conftest.out
272	rm -f conftest.in
273	mv conftest.out conftest.in
274
275	cat > conftest.frag <<CEOF
276	${ac_dA}CONNECT_SOCKARG${ac_dB}CONNECT_SOCKARG${ac_dC}struct sockaddr_in *${ac_dD}
277	${ac_uA}CONNECT_SOCKARG${ac_uB}CONNECT_SOCKARG${ac_uC}struct sockaddr_in *${ac_uD}
278	${ac_eA}CONNECT_SOCKARG${ac_eB}CONNECT_SOCKARG${ac_eC}struct sockaddr_in *${ac_eD}
279	${ac_dA}CLOSE_SIGNATURE${ac_dB}CLOSE_SIGNATURE${ac_dC}int fd${ac_dD}
280	${ac_uA}CLOSE_SIGNATURE${ac_uB}CLOSE_SIGNATURE${ac_uC}int fd${ac_uD}
281	${ac_eA}CLOSE_SIGNATURE${ac_eB}CLOSE_SIGNATURE${ac_eC}int fd${ac_eD}
282	${ac_dA}POLL_SIGNATURE${ac_dB}POLL_SIGNATURE${ac_dC}struct pollfd *ufds, unsigned long nfds, int timeout${ac_dD}
283	${ac_uA}POLL_SIGNATURE${ac_uB}POLL_SIGNATURE${ac_uC}struct pollfd *ufds, unsigned long nfds, int timeout${ac_uD}
284	${ac_eA}POLL_SIGNATURE${ac_eB}POLL_SIGNATURE${ac_eC}struct pollfd *ufds, unsigned long nfds, int timeout${ac_eD}
285	s%^[ ]#[ ]undef[ ][ ][a-zA-Z_][a-zA-Z_0-9]%/* & */%
286	CEOF
287	sed -f conftest.frag conftest.in > conftest.out
288	rm -f conftest.in
289	mv conftest.out conftest.in
290
291	rm -f conftest.frag conftest.h
292	echo "/* $ac_file. Generated automatically by configure. */" > conftest.h
293	cat conftest.in >> conftest.h
294	rm -f conftest.in
295	if cmp -s $ac_file conftest.h 2>/dev/null; then
296	echo "$ac_file is unchanged"
297	rm -f conftest.h
298	else
299	# Remove last slash and all that follows it. Not all systems have dirname.
300	ac_dir=`echo $ac_file\|sed 's%/[^/][^/]*$%%'`
301	if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
302	# The file is in a subdirectory.
303	test ! -d "$ac_dir" && mkdir "$ac_dir"
304	fi
305	rm -f $ac_file
306	mv conftest.h $ac_file
307	fi
308	fi; done
309
310
311
312	exit 0

Lines 11-27 Link Here

(-)tsocks-1.8/configure.in (-13 / +50 lines)
11	dnl /etc/ld.so.preload file	11	dnl /etc/ld.so.preload file
12	test "$libdir" = "\${exec_prefix}/lib" && libdir="/lib"	12	test "$libdir" = "\${exec_prefix}/lib" && libdir="/lib"
13		13
14	dnl Arguments we allow	14	dnl Arguments we allow
15	AC_ARG_ENABLE(socksdns,	15	AC_ARG_ENABLE(socksdns,
16	[ --enable-socksdns force dns lookups to use tcp ])	16	[ --enable-socksdns force dns lookups to use tcp ])
		17	AC_ARG_ENABLE(tordns,
		18	[ --disable-tordns don't override name lookup calls to use SOCKS ])
17	AC_ARG_ENABLE(debug,	19	AC_ARG_ENABLE(debug,
18	[ --disable-debug disable ALL error messages from tsocks ])	20	[ --disable-debug disable ALL error messages from tsocks ])
19	AC_ARG_ENABLE(oldmethod,	21	AC_ARG_ENABLE(oldmethod,
20	[ --enable-oldmethod use the old method to override connect ])	22	[ --enable-oldmethod use the old method to override connect ])
21	AC_ARG_ENABLE(hostnames,	23	AC_ARG_ENABLE(hostnames,
22	[ --disable-hostnames disable hostname lookups for socks servers ])	24	[ --enable-hostnames enable hostname lookups for socks servers ])
23	AC_ARG_ENABLE(envconf,	25	AC_ARG_ENABLE(envconf,
24	[ --disable-envconf do not allow TSOCKS_CONF_FILE to specify configuration file ])	26	[ --disable-envconf do not allow TSOCKS_CONF_FILE to specify configuration file ])
25	AC_ARG_WITH(conf,	27	AC_ARG_WITH(conf,
26	[ --with-conf=<file> location of configuration file (/etc/tsocks.conf default)],[	28	[ --with-conf=<file> location of configuration file (/etc/tsocks.conf default)],[
27	if test "${withval}" = "yes" ; then	29	if test "${withval}" = "yes" ; then
Lines 43-53 Link Here
43	AC_PROG_CC	45	AC_PROG_CC
44	AC_PROG_INSTALL	46	AC_PROG_INSTALL
45	AC_PROG_LN_S	47	AC_PROG_LN_S
46		48
47	dnl Check if the C compiler accepts -Wall	49	dnl Check if the C compiler accepts -Wall
48	AC_MSG_CHECKING("if the C compiler accepts -Wall")	50	AC_MSG_CHECKING(if the C compiler accepts -Wall)
49	OLDCFLAGS="$CFLAGS"	51	OLDCFLAGS="$CFLAGS"
50	CFLAGS="$CFLAGS -Wall"	52	CFLAGS="$CFLAGS -Wall"
51	AC_TRY_COMPILE(,,AC_MSG_RESULT(yes),[	53	AC_TRY_COMPILE(,,AC_MSG_RESULT(yes),[
52	CFLAGS="$OLDCFLAGS"	54	CFLAGS="$OLDCFLAGS"
53	AC_MSG_RESULT(no)])	55	AC_MSG_RESULT(no)])
Lines 68-83 Link Here
68	AC_CHECK_HEADER(fcntl.h,,AC_MSG_ERROR("fcntl.h not found"))	70	AC_CHECK_HEADER(fcntl.h,,AC_MSG_ERROR("fcntl.h not found"))
69		71
70	dnl Check for the poll header	72	dnl Check for the poll header
71	AC_CHECK_HEADER(sys/poll.h,,AC_MSG_ERROR("sys/poll.h not found"))	73	AC_CHECK_HEADER(sys/poll.h,,AC_MSG_ERROR("sys/poll.h not found"))
72		74
		75	dnl Check for the mmap header
		76	AC_CHECK_HEADER(sys/mman.h,,AC_MSG_ERROR("sys/mman.h not found"))
		77
73	dnl Other headers we're interested in	78	dnl Other headers we're interested in
74	AC_CHECK_HEADERS(unistd.h)	79	AC_CHECK_HEADERS(unistd.h)
75		80
76	dnl Checks for library functions.	81	dnl Checks for library functions.
77	AC_CHECK_FUNCS(strcspn strdup strerror strspn strtol,,[	82	AC_CHECK_FUNCS(strcspn strdup strerror strspn strtol mmap strcasecmp \
78	AC_MSG_ERROR("Required function not found")])	83	strncasecmp strtol,,[AC_MSG_ERROR("Required function not found")])
		84
		85	dnl Find which version of gethostbyname_r we should be using (actually this
		86	dnl isn't used right now).
		87	AX_FUNC_WHICH_GETHOSTBYNAME_R
79		88
80	dnl First find the library that contains connect() (obviously	89	dnl First find the library that contains connect() (obviously
81	dnl the most important library for us). Once we've found it	90	dnl the most important library for us). Once we've found it
82	dnl we chuck it on the end of LIBS, that lib may end up there	91	dnl we chuck it on the end of LIBS, that lib may end up there
83	dnl more than once (since we do our search with an empty libs	92	dnl more than once (since we do our search with an empty libs
Lines 123-144 Link Here
123	dnl Checks for libraries.	132	dnl Checks for libraries.
124	dnl Replace `main' with a function in -ldl:	133	dnl Replace `main' with a function in -ldl:
125	AC_CHECK_LIB(dl, dlsym,,AC_MSG_ERROR("libdl is required"))	134	AC_CHECK_LIB(dl, dlsym,,AC_MSG_ERROR("libdl is required"))
126		135
127	dnl If we're using gcc here define _GNU_SOURCE	136	dnl If we're using gcc here define _GNU_SOURCE
128	AC_MSG_CHECKING("for RTLD_NEXT from dlfcn.h")	137	AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
129	AC_EGREP_CPP(yes,	138	AC_EGREP_CPP(yes,
130	[	139	[
131	#include <dlfcn.h>	140	#include <dlfcn.h>
132	#ifdef RTLD_NEXT	141	#ifdef RTLD_NEXT
133	yes	142	yes
134	#endif	143	#endif
135	], [	144	], [
136	AC_MSG_RESULT(yes)	145	AC_MSG_RESULT(yes)
137	], [	146	], [
138	AC_MSG_RESULT(no)	147	AC_MSG_RESULT(no)
139	AC_MSG_CHECKING("for RTLD_NEXT from dlfcn.h with _GNU_SOURCE")	148	AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h with _GNU_SOURCE)
140	AC_EGREP_CPP(yes,	149	AC_EGREP_CPP(yes,
141	[	150	[
142	#define _GNU_SOURCE	151	#define _GNU_SOURCE
143	#include <dlfcn.h>	152	#include <dlfcn.h>
144	#ifdef RTLD_NEXT	153	#ifdef RTLD_NEXT
Lines 156-165 Link Here
156		165
157	if test "${enable_socksdns}" = "yes"; then	166	if test "${enable_socksdns}" = "yes"; then
158	AC_DEFINE(USE_SOCKS_DNS)	167	AC_DEFINE(USE_SOCKS_DNS)
159	fi	168	fi
160		169
		170	AC_MSG_CHECKING(whether to enable tordns)
		171	if test "x${enable_tordns}" = "x"; then
		172	AC_DEFINE(USE_TOR_DNS)
		173	DEADPOOL_O="\${DEADPOOL}.o"
		174	AC_MSG_RESULT(yes)
		175	else
		176	DEADPOOL_O=""
		177	AC_MSG_RESULT(no)
		178	fi
		179	AC_SUBST(DEADPOOL_O)
		180
161	if test "x${enable_envconf}" = "x"; then	181	if test "x${enable_envconf}" = "x"; then
162	AC_DEFINE(ALLOW_ENV_CONFIG)	182	AC_DEFINE(ALLOW_ENV_CONFIG)
163	fi	183	fi
164		184
165	if test "${enable_oldmethod}" = "yes"; then	185	if test "${enable_oldmethod}" = "yes"; then
Lines 169-185 Link Here
169		189
170	if test "x${enable_debug}" = "x"; then	190	if test "x${enable_debug}" = "x"; then
171	AC_DEFINE(ALLOW_MSG_OUTPUT)	191	AC_DEFINE(ALLOW_MSG_OUTPUT)
172	fi	192	fi
173		193
174	if test "x${enable_hostnames}" = "x"; then	194	if test "x${enable_hostnames}" = "xyes"; then
175	AC_DEFINE(HOSTNAMES)	195	AC_DEFINE(HOSTNAMES)
176	fi	196	fi
177		197
178	if test "${enable_socksdns}" = "yes" -a \	198	if test "${enable_socksdns}" = "yes" -a \
179	"x${enable_hostnames}" = "x" ; then	199	"x${enable_hostnames}" = "xyes" ; then
180	AC_MSG_ERROR("--enable-socksdns is not valid without --disable-hostnames")	200	AC_MSG_ERROR("--enable-socksdns is not valid with --enable-hostnames")
		201	fi
		202
		203	if test "x${enable_tordns}" = "x" -a \
		204	"x${enable_hostnames}" = "xyes" ; then
		205	AC_MSG_ERROR("--enable-tordns is not valid with --enable-hostnames")
181	fi	206	fi
182		207
183	dnl If we have to use the old method of overriding connect (i.e no	208	dnl If we have to use the old method of overriding connect (i.e no
184	dnl RTLD_NEXT) we need to know the location of the library that	209	dnl RTLD_NEXT) we need to know the location of the library that
185	dnl contains connect(), select(), poll() and close()	210	dnl contains connect(), select(), poll() and close()
Lines 201-211 Link Here
201	if test "${TAIL}" = ""; then	226	if test "${TAIL}" = ""; then
202	AC_MSG_ERROR('tail not found in path')	227	AC_MSG_ERROR('tail not found in path')
203	fi	228	fi
204		229
205	dnl Now find the library we need	230	dnl Now find the library we need
206	AC_MSG_CHECKING("location of lib${CONNECTLIB}.so")	231	AC_MSG_CHECKING(location of lib${CONNECTLIB}.so)
207	LIBCONNECT=	232	LIBCONNECT=
208	for DIR in '/lib' '/usr/lib'; do	233	for DIR in '/lib' '/usr/lib'; do
209	if test "${LIBCONNECT}" = ""; then	234	if test "${LIBCONNECT}" = ""; then
210	LIBCONNECT=`$FIND $DIR -name "lib${CONNECTLIB}.so.?" 2>/dev/null \| $TAIL -1`	235	LIBCONNECT=`$FIND $DIR -name "lib${CONNECTLIB}.so.?" 2>/dev/null \| $TAIL -1`
211	fi	236	fi
Lines 217-227 Link Here
217	fi	242	fi
218		243
219	AC_MSG_RESULT($LIBCONNECT)	244	AC_MSG_RESULT($LIBCONNECT)
220		245
221	dnl close() should be in libc, find it	246	dnl close() should be in libc, find it
222	AC_MSG_CHECKING("location of libc.so")	247	AC_MSG_CHECKING(location of libc.so)
223	LIBC=	248	LIBC=
224	for DIR in '/lib' '/usr/lib'; do	249	for DIR in '/lib' '/usr/lib'; do
225	if test "${LIBC}" = ""; then	250	if test "${LIBC}" = ""; then
226	LIBC=`$FIND $DIR -name "libc.so.?" 2>/dev/null \| $TAIL -1`	251	LIBC=`$FIND $DIR -name "libc.so.?" 2>/dev/null \| $TAIL -1`
227	fi	252	fi
Lines 325-334 Link Here
325	AC_MSG_ERROR("no match found!")	350	AC_MSG_ERROR("no match found!")
326	fi	351	fi
327	AC_MSG_RESULT([poll(${PROTO})])	352	AC_MSG_RESULT([poll(${PROTO})])
328	AC_DEFINE_UNQUOTED(POLL_SIGNATURE, [${PROTO}])	353	AC_DEFINE_UNQUOTED(POLL_SIGNATURE, [${PROTO}])
329		354
		355	dnl Emit signature for gethostbyname
		356	PROTO="const char *name"
		357	AC_DEFINE_UNQUOTED(GETHOSTBYNAME_SIGNATURE, [${PROTO}])
		358
		359	dnl Emit signature for getaddrinfo
		360	PROTO="const char node, const char service, void hints, void res"
		361	AC_DEFINE_UNQUOTED(GETADDRINFO_SIGNATURE, [${PROTO}])
		362
		363	dnl Emit signature for getipnodebyname
		364	PROTO="const char name, int af, int flags, int error_num"
		365	AC_DEFINE_UNQUOTED(GETIPNODEBYNAME_SIGNATURE, [${PROTO}])
		366
330	dnl Output the special librarys (libdl etc needed for tsocks)	367	dnl Output the special librarys (libdl etc needed for tsocks)
331	SPECIALLIBS=${LIBS}	368	SPECIALLIBS=${LIBS}
332	AC_SUBST(SPECIALLIBS)	369	AC_SUBST(SPECIALLIBS)
333	LIBS=${SIMPLELIBS}	370	LIBS=${SIMPLELIBS}
334		371

Line 0 Link Here

(-)tsocks-1.8/dead_pool.c (+541 lines)
		1	#include <stdio.h>
		2	#include <sys/socket.h>
		3	#include <netinet/in.h>
		4	#include <arpa/inet.h>
		5	#include <netdb.h>
		6	#include <stdlib.h>
		7	#include <string.h>
		8	#include <sys/mman.h>
		9	#include "common.h"
		10	#include "dead_pool.h"
		11
		12	int store_pool_entry(dead_pool pool, char hostname, struct in_addr *addr);
		13	void get_next_dead_address(dead_pool pool, uint32_t result);
		14
		15	static int
		16	do_resolve(const char *hostname, uint32_t sockshost, uint16_t socksport,
		17	uint32_t *result_addr);
		18
		19	/* Compares the last strlen(s2) characters of s1 with s2. Returns as for
		20	strcasecmp. */
		21	static int
		22	strcasecmpend(const char s1, const char s2)
		23	{
		24	size_t n1 = strlen(s1), n2 = strlen(s2);
		25	if (n2>n1) /* then they can't be the same; figure out which is bigger */
		26	return strcasecmp(s1,s2);
		27	else
		28	return strncasecmp(s1+(n1-n2), s2, n2);
		29	}
		30
		31	dead_pool *
		32	init_pool(int pool_size, struct in_addr deadrange_base,
		33	struct in_addr deadrange_mask, char *sockshost, uint16_t socksport)
		34	{
		35	int i, deadrange_bits, deadrange_width, deadrange_size;
		36	struct in_addr socks_server;
		37	dead_pool *newpool = NULL;
		38
		39	/* Count bits in netmask and determine deadrange width. */
		40	deadrange_bits = count_netmask_bits(deadrange_mask.s_addr);
		41	if(deadrange_bits == -1) {
		42	show_msg(MSGERR, "init_pool: invalid netmask for deadrange\n");
		43	return NULL;
		44	}
		45	deadrange_width = 32 - deadrange_bits;
		46
		47	show_msg(MSGDEBUG, "deadrange width is %d bits\n", deadrange_width);
		48
		49	/* Now work out how many IPs are available in the deadrange and check
		50	that this number makes sense. If the deadpool is bigger than the
		51	deadrange we shrink the pool. */
		52
		53	for(i=0, deadrange_size = 1; i < deadrange_width; i++) {
		54	deadrange_size *= 2;
		55	}
		56
		57	if(deadrange_size < pool_size) {
		58	show_msg(MSGWARN, "tordns cache size was %d, but deadrange size is %d: "
		59	"shrinking pool size to %d entries\n", pool_size,
		60	deadrange_size, deadrange_size);
		61	pool_size = deadrange_size;
		62	}
		63	if(pool_size < 1) {
		64	show_msg(MSGERR, "tordns cache size is 0, disabling tordns\n");
65	return NULL;
66	}
67
68	/* Allocate space for the dead_pool structure */
69	newpool = (dead_pool *) mmap(0, sizeof(dead_pool),
70	PROT_READ \| PROT_WRITE,
71	MAP_SHARED \| MAP_ANONYMOUS, -1, 0);
72	if(!newpool) {
73	show_msg(MSGERR, "init_pool: unable to mmap deadpool "
74	"(tried to map %d bytes)\n", sizeof(dead_pool));
75	return NULL;
76	}
77
78	/* Initialize the dead_pool structure */
79	#ifdef HAVE_INET_ATON
80	inet_aton(sockshost, &socks_server);
81	#elif defined(HAVE_INET_ADDR)
82	socks_server.s_addr = inet_addr(sockshost);
83	#endif
84	newpool->sockshost = ntohl(socks_server.s_addr);
85	newpool->socksport = socksport;
86	newpool->deadrange_base = ntohl(deadrange_base.s_addr);
87	newpool->deadrange_mask = ntohl(deadrange_mask.s_addr);
88	newpool->deadrange_size = deadrange_size;
89	newpool->write_pos = 0;
90	newpool->dead_pos = 0;
91	newpool->n_entries = pool_size;
92
93	/* Allocate space for the entries */
94	newpool->entries = (pool_ent ) mmap(0, newpool->n_entries sizeof(pool_ent),
95	PROT_READ \| PROT_WRITE,
96	MAP_SHARED \| MAP_ANONYMOUS, -1, 0);
97	if(!newpool->entries) {
98	munmap((void *)newpool, sizeof(dead_pool));
99	show_msg(MSGERR, "init_pool: unable to mmap deadpool entries "
100	"(tried to map %d bytes)\n",
101	newpool->n_entries * sizeof(pool_ent));
102	return NULL;
103	}
104
105	/* Initialize the entries */
106	for(i=0; i < newpool->n_entries; i++) {
107	newpool->entries[i].ip = -1;
108	newpool->entries[i].name[0] = '\0';
109	}
110
111	return newpool;
112	}
113
114	int
115	is_dead_address(dead_pool *pool, uint32_t addr)
116	{
117	uint32_t haddr = ntohl(addr);
118	if(pool == NULL) {
119	return 0;
120	}
121	return (pool->deadrange_base == (haddr & pool->deadrange_mask));
122	}
123
124	void
125	get_next_dead_address(dead_pool pool, uint32_t result)
126	{
127	*result = htonl(pool->deadrange_base + pool->dead_pos++);
128	if(pool->dead_pos >= pool->deadrange_size) {
129	pool->dead_pos = 0;
130	}
131	}
132
133	int
134	store_pool_entry(dead_pool pool, char hostname, struct in_addr *addr)
135	{
136	int position = pool->write_pos;
137	int oldpos;
138	int rc;
139	uint32_t intaddr;
140
141	show_msg(MSGDEBUG, "store_pool_entry: storing '%s'\n", hostname);
142	show_msg(MSGDEBUG, "store_pool_entry: write pos is: %d\n", pool->write_pos);
143
144	/* Check to see if name already exists in pool */
145	oldpos = search_pool_for_name(pool, hostname);
146	if(oldpos != -1){
147	show_msg(MSGDEBUG, "store_pool_entry: not storing (entry exists)\n");
148	addr->s_addr = pool->entries[oldpos].ip;
149	return oldpos;
150	}
151
152	/* If this is a .onion host, then we return a bogus ip from our deadpool,
153	otherwise we try to resolve it and store the 'real' IP */
154	if(strcasecmpend(hostname, ".onion") == 0) {
155	get_next_dead_address(pool, &pool->entries[position].ip);
156	} else {
157	rc = do_resolve(hostname, pool->sockshost, pool->socksport, &intaddr);
158	if(rc != 0) {
159	show_msg(MSGWARN, "failed to resolve: %s\n", hostname);
160	return -1;
161	}
162	if(is_dead_address(pool, intaddr)) {
163	show_msg(MSGERR, "resolved %s -> %d (deadpool address) IGNORED\n");
164	return -1;
165	}
166	pool->entries[position].ip = intaddr;
167	}
168
169	strncpy(pool->entries[position].name, hostname, 255);
170	pool->entries[position].name[255] = '\0';
171	pool->write_pos++;
172	if(pool->write_pos >= pool->n_entries) {
173	pool->write_pos = 0;
174	}
175	addr->s_addr = pool->entries[position].ip;
176
177	show_msg(MSGDEBUG, "store_pool_entry: stored entry in slot '%d'\n", position);
178
179	return position;
180	}
181
182	int
183	search_pool_for_name(dead_pool pool, const char name)
184	{
185	int i;
186	for(i=0; i < pool->n_entries; i++){
187	if(strcmp(name, pool->entries[i].name) == 0){
188	return i;
189	}
190	}
191	return -1;
192	}
193
194	char *
195	get_pool_entry(dead_pool pool, struct in_addr addr)
196	{
197	int i;
198	uint32_t intaddr = addr->s_addr;
199
200	if(pool == NULL) {
201	return NULL;
202	}
203
204	show_msg(MSGDEBUG, "get_pool_entry: searching for: %s\n", inet_ntoa(*addr));
205	for(i=0; i<pool->n_entries; i++) {
206	if(intaddr == pool->entries[i].ip) {
207	show_msg(MSGDEBUG, "get_pool_entry: found: %s\n", pool->entries[i].name);
208	return pool->entries[i].name;
209	}
210	}
211	show_msg(MSGDEBUG, "get_pool_entry: address not found\n");
212
213	return NULL;
214	}
215
216	static int
217	build_socks4a_resolve_request(char **out,
218	const char *username,
219	const char *hostname)
220	{
221	size_t len;
222	uint16_t port = htons(0); /* port: 0. */
223	uint32_t addr = htonl(0x00000001u); /* addr: 0.0.0.1 */
224
225	len = 8 + strlen(username) + 1 + strlen(hostname) + 1;
226	*out = malloc(len);
227	(out)[0] = 4; / SOCKS version 4 */
228	(out)[1] = '\xF0'; / Command: resolve. */
229
230	memcpy((*out)+2, &port, sizeof(port));
231	memcpy((*out)+4, &addr, sizeof(addr));
232	strcpy((*out)+8, username);
233	strcpy((*out)+8+strlen(username)+1, hostname);
234
235	return len;
236	}
237
238	#define RESPONSE_LEN 8
239
240	static int
241	parse_socks4a_resolve_response(const char *response, size_t len,
242	uint32_t *addr_out)
243	{
244	uint8_t status;
245	uint16_t port;
246
247	if (len < RESPONSE_LEN) {
248	show_msg(MSGWARN,"Truncated socks response.\n");
249	return -1;
250	}
251	if (((uint8_t)response[0])!=0) { /* version: 0 */
252	show_msg(MSGWARN,"Nonzero version in socks response: bad format.\n");
253	return -1;
254	}
255	status = (uint8_t)response[1];
256
257	memcpy(&port, response+2, sizeof(port));
258	if (port!=0) { /* port: 0 */
259	show_msg(MSGWARN,"Nonzero port in socks response: bad format.\n");
260	return -1;
261	}
262	if (status != 90) {
263	show_msg(MSGWARN,"Bad status: socks request failed.\n");
264	return -1;
265	}
266
267	memcpy(addr_out, response+4, sizeof(*addr_out));
268
269	return 0;
270	}
271
272	static int
273	do_resolve(const char *hostname, uint32_t sockshost, uint16_t socksport,
274	uint32_t *result_addr)
275	{
276	int s;
277	struct sockaddr_in socksaddr;
278	char req, cp;
279	int r, len;
280	char response_buf[RESPONSE_LEN];
281
282	show_msg(MSGDEBUG, "do_resolve: resolving %s\n", hostname);
283
284	s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
285	if (s<0) {
286	show_msg(MSGWARN, "do_resolve: problem creating socket\n");
287	return -1;
288	}
289
290	memset(&socksaddr, 0, sizeof(socksaddr));
291	socksaddr.sin_family = AF_INET;
292	socksaddr.sin_port = htons(socksport);
293	socksaddr.sin_addr.s_addr = htonl(sockshost);
294	if (realconnect(s, (struct sockaddr*)&socksaddr, sizeof(socksaddr))) {
295	show_msg(MSGWARN, "do_resolve: error connecting to SOCKS server\n");
296	return -1;
297	}
298
299	if ((len = build_socks4a_resolve_request(&req, "", hostname))<0) {
300	show_msg(MSGWARN, "do_resolve: error generating SOCKS request\n");
301	return -1;
302	}
303
304	cp = req;
305	while (len) {
306	r = send(s, cp, len, 0);
307	if (r<0) {
308	show_msg(MSGWARN, "do_resolve: error sending SOCKS request\n");
309	free(req);
310	return -1;
311	}
312	len -= r;
313	cp += r;
314	}
315	free(req);
316
317	len = 0;
318	while (len < RESPONSE_LEN) {
319	r = recv(s, response_buf+len, RESPONSE_LEN-len, 0);
320	if (r==0) {
321	show_msg(MSGWARN, "do_resolve: EOF while reading SOCKS response\n");
322	return -1;
323	}
324	if (r<0) {
325	show_msg(MSGWARN, "do_resolve: error reading SOCKS response\n");
326	return -1;
327	}
328	len += r;
329	}
330
331	realclose(s);
332
333	if (parse_socks4a_resolve_response(response_buf, RESPONSE_LEN, result_addr) < 0){
334	show_msg(MSGWARN, "do_resolve: error parsing SOCKS response\n");
335	return -1;
336	}
337
338	show_msg(MSGDEBUG, "do_resolve: success\n");
339
340	return 0;
341	}
342
343	struct hostent *
344	our_gethostbyname(dead_pool pool, const char name)
345	{
346	int pos;
347	static struct in_addr addr;
348	static struct hostent he;
349	static char *addrs[2];
350
351	show_msg(MSGDEBUG, "our_gethostbyname: '%s' requested\n", name);
352
353	pos = store_pool_entry(pool,(char *) name, &addr);
354	if(pos == -1) {
355	h_errno = HOST_NOT_FOUND;
356	return NULL;
357	}
358
359	addrs[0] = (char *)&addr;
360	addrs[1] = NULL;
361
362	he.h_name = pool->entries[pos].name;
363	he.h_aliases = NULL;
364	he.h_length = 4;
365	he.h_addrtype = AF_INET;
366	he.h_addr_list = addrs;
367
368	show_msg(MSGDEBUG, "our_gethostbyname: resolved '%s' to: '%s'\n",
369	name, inet_ntoa(((struct in_addr )he.h_addr)));
370
371	return &he;
372	}
373
374	static struct hostent *
375	alloc_hostent(int af)
376	{
377	struct hostent *he = NULL;
378	char **addr_list = NULL;
379	void *addr = NULL;
380	char **aliases = NULL;
381
382	if(af != AF_INET && af != AF_INET6) {
383	return NULL;
384	}
385
386	/* Since the memory we allocate here will be free'd by freehostent and
387	that function is opaque to us, it's likely that we'll leak a little
388	bit of memory here. */
389
390	he = malloc(sizeof(struct hostent));
391	addr_list = malloc(2 * sizeof(char *));
392	if(af == AF_INET6) {
393	addr = malloc(sizeof(struct in6_addr));
394	} else {
395	addr = malloc(sizeof(struct in_addr));
396	}
397	aliases = malloc(sizeof(char *));
398
399	if(he == NULL \|\| addr_list == NULL \|\| addr == NULL \|\| aliases == NULL) {
400	if(he)
401	free(he);
402	if(addr_list)
403	free(addr_list);
404	if(addr)
405	free(addr);
406	if(aliases)
407	free(aliases);
408	}
409
410	he->h_name = NULL;
411	he->h_addr_list = addr_list;
412	he->h_addr_list[0] = addr;
413	he->h_addr_list[1] = NULL;
414	he->h_aliases = aliases;
415	he->h_aliases[0] = NULL;
416	he->h_length = af == AF_INET ? 4 : 16;
417	he->h_addrtype = af;
418
419	return he;
420	}
421
422	/* On Linux, there's no freehostent() anymore; we might as well implement
423	this ourselves. */
424
425	static void
426	free_hostent(struct hostent *he)
427	{
428	int i;
429	if(he->h_name) {
430	free(he->h_name);
431	}
432	if(he->h_aliases) {
433	for(i=0; he->h_aliases[i] != NULL; i++) {
434	free(he->h_aliases[i]);
435	}
436	free(he->h_aliases);
437	}
438	if(he->h_addr_list) {
439	free(he->h_addr_list);
440	}
441	free(he);
442	}
443
444	int
445	our_getaddrinfo(dead_pool pool, const char node, const char *service,
446	void hints, void res)
447	{
448	int pos;
449	struct in_addr addr;
450	char *ipstr;
451	int ret;
452
453	/* If "node" looks like a dotted-decimal ip address, then just call
454	the real getaddrinfo; otherwise we'll need to get an address from
455	our pool. */
456
457	/* TODO: work out what to do with AF_INET6 requests */
458
459	#ifdef HAVE_INET_ATON
460	if(inet_aton(node, &addr) == 0) {
461	#elif defined(HAVE_INET_ADDR)
462	/* If we're stuck with inet_addr, then getaddrinfo() won't work
463	properly with 255.255.255.255 (= -1). There's not much we can
464	do about this */
465	in_addr_t is_valid;
466	is_valid = inet_addr(node);
467	if(is_valid == -1) {
468	#endif
469	pos = store_pool_entry(pool, (char *) node, &addr);
470	if(pos == -1) {
471	return EAI_NONAME;
472	} else {
473	ipstr = strdup(inet_ntoa(addr));
474	ret = realgetaddrinfo(ipstr, service, hints, res);
475	free(ipstr);
476	}
477	} else {
478	ret = realgetaddrinfo(node, service, hints, res);
479	}
480
481	return ret;
482	}
483
484	struct hostent *
485	our_getipnodebyname(dead_pool pool, const char name, int af, int flags,
486	int *error_num)
487	{
488	int pos;
489	struct hostent *he = NULL;
490	int want_4in6 = 0;
491	char addr_convert_buf[80];
492	struct in_addr pool_addr;
493
494	if(af == AF_INET6) {
495	/* Caller has requested an AF_INET6 address, and is not prepared to
496	accept IPv4-mapped IPV6 addresses. There's nothing we can do to
497	service their request. */
498	if((flags & AI_V4MAPPED) == 0) {
499	show_msg(MSGWARN, "getipnodebyname: asked for V6 addresses only, "
500	"but tsocks can't handle that\n");
501	*error_num = NO_RECOVERY;
502	return NULL;
503	} else {
504	want_4in6 = 1;
505	}
506	}
507
508	pos = store_pool_entry(pool, (char *)name, &pool_addr);
509	if(pos == -1) {
510	*error_num = HOST_NOT_FOUND;
511	return NULL;
512	}
513
514	he = alloc_hostent(af);
515	if(he == NULL) {
516	show_msg(MSGERR, "getipnodebyname: failed to allocate hostent\n");
517	*error_num = NO_RECOVERY;
518	return NULL;
519	}
520
521	if(want_4in6) {
522	/* Convert the ipv4 address in *addr to an IPv4 in IPv6 mapped
523	address. TODO: inet_ntoa() is thread-safe on Solaris but might
524	not be on other platforms. */
525	strcpy(addr_convert_buf, "::FFFF:");
526	strcpy(addr_convert_buf+7, inet_ntoa(pool_addr));
527	if(inet_pton(AF_INET6, addr_convert_buf, he->h_addr_list[0]) != 1) {
528	show_msg(MSGERR, "getipnodebyname: inet_pton() failed!\n");
529	free_hostent(he);
530	*error_num = NO_RECOVERY;
531	return NULL;
532	}
533	} else {
534	((struct in_addr *) he->h_addr_list[0])->s_addr = pool_addr.s_addr;
535	}
536	he->h_name = strdup(name);
537
538	return he;
539	}
540
541

Line 0 Link Here

(-)tsocks-1.8/dead_pool.h (+44 lines)
	1	#ifndef _DEAD_POOL_H
	2	#define _DEAD_POOL_H
	3
	4	#include <config.h>
	5
	6	extern int (*realconnect)(CONNECT_SIGNATURE);
	7	extern int (*realclose)(CLOSE_SIGNATURE);
	8	extern int (*realgetaddrinfo)(GETADDRINFO_SIGNATURE);
	9
	10	struct struct_pool_ent {
	11	unsigned int ip;
	12	char name[256];
	13	};
	14
	15	typedef struct struct_pool_ent pool_ent;
	16
	17	struct struct_dead_pool {
	18	pool_ent entries; / Points to array of pool entries */
	19	int n_entries; /* Number of entries in the deadpool */
	20	unsigned int deadrange_base; /* Deadrange start IP in host byte order */
	21	unsigned int deadrange_mask; /* Deadrange netmask in host byte order */
	22	unsigned int deadrange_size; /* Number of IPs in the deadrange */
	23	unsigned int write_pos; /* Next position to use in the pool array */
	24	unsigned int dead_pos; /* Next 'unused' deadpool IP */
	25	uint32_t sockshost;
	26	uint16_t socksport;
	27	char pad[2];
	28	};
	29
	30	typedef struct struct_dead_pool dead_pool;
	31
	32	dead_pool *init_pool(int deadpool_size, struct in_addr deadrange_base,
	33	struct in_addr deadrange_mask, char *sockshost, uint16_t socksport);
	34	int is_dead_address(dead_pool *pool, uint32_t addr);
	35	char get_pool_entry(dead_pool pool, struct in_addr *addr);
	36	int search_pool_for_name(dead_pool pool, const char name);
	37	struct hostent our_gethostbyname(dead_pool pool, const char *name);
	38	int our_getaddrinfo(dead_pool pool, const char node, const char *service,
	39	void hints, void res);
	40	struct hostent our_getipnodebyname(dead_pool pool, const char *name,
	41	int af, int flags, int *error_num);
	42
	43	#endif /* _DEAD_POOL_H */
	44

Lines 17-31 Link Here

(-)tsocks-1.8/Makefile.in (-3 / +8 lines)
17	INSPECT = inspectsocks	17	INSPECT = inspectsocks
18	SAVE = saveme	18	SAVE = saveme
19	LIB_NAME = libtsocks	19	LIB_NAME = libtsocks
20	COMMON = common	20	COMMON = common
21	PARSER = parser	21	PARSER = parser
		22	DEADPOOL = dead_pool
22	VALIDATECONF = validateconf	23	VALIDATECONF = validateconf
23	SCRIPT = tsocks	24	SCRIPT = tsocks
24	SHLIB_MAJOR = 1	25	SHLIB_MAJOR = 1
25	SHLIB_MINOR = 8	26	SHLIB_MINOR = 8
26	SHLIB = ${LIB_NAME}.so.${SHLIB_MAJOR}.${SHLIB_MINOR}	27	SHLIB = ${LIB_NAME}.so.${SHLIB_MAJOR}.${SHLIB_MINOR}
		28	DEADPOOL_O = @DEADPOOL_O@
27		29
28	INSTALL = @INSTALL@	30	INSTALL = @INSTALL@
29	INSTALL_DATA = @INSTALL_DATA@	31	INSTALL_DATA = @INSTALL_DATA@
30	CFLAGS = @CFLAGS@	32	CFLAGS = @CFLAGS@
31	INCLUDES = -I.	33	INCLUDES = -I.
Lines 47-58 Link Here
47	${SHCC} ${CFLAGS} ${INCLUDES} -o ${INSPECT} ${INSPECT}.c ${COMMON}.o ${LIBS}	49	${SHCC} ${CFLAGS} ${INCLUDES} -o ${INSPECT} ${INSPECT}.c ${COMMON}.o ${LIBS}
48		50
49	${SAVE}: ${SAVE}.c	51	${SAVE}: ${SAVE}.c
50	${SHCC} ${CFLAGS} ${INCLUDES} -static -o ${SAVE} ${SAVE}.c	52	${SHCC} ${CFLAGS} ${INCLUDES} -static -o ${SAVE} ${SAVE}.c
51		53
52	${SHLIB}: ${OBJS} ${COMMON}.o ${PARSER}.o	54	${SHLIB}: ${OBJS} ${COMMON}.o ${PARSER}.o ${DEADPOOL_O}
53	${SHCC} ${CFLAGS} ${INCLUDES} -nostdlib -shared -o ${SHLIB} ${OBJS} ${COMMON}.o ${PARSER}.o ${DYNLIB_FLAGS} ${SPECIALLIBS} ${LIBS}	55	${SHCC} ${CFLAGS} ${INCLUDES} -nostdlib -shared -o ${SHLIB} ${OBJS} ${COMMON}.o ${PARSER}.o ${DEADPOOL_O} ${DYNLIB_FLAGS} ${SPECIALLIBS} ${LIBS}
54	ln -sf ${SHLIB} ${LIB_NAME}.so	56	ln -sf ${SHLIB} ${LIB_NAME}.so
55		57
56	%.so: %.c	58	%.so: %.c
57	${SHCC} ${CFLAGS} ${INCLUDES} -c ${CC_SWITCHES} $< -o $@	59	${SHCC} ${CFLAGS} ${INCLUDES} -c ${CC_SWITCHES} $< -o $@
58		60
Lines 81-86 Link Here
81		83
82	clean:	84	clean:
83	-rm -f .so .so.* .o ~ ${TARGETS}	85	-rm -f .so .so.* .o ~ ${TARGETS}
84		86
85	distclean: clean	87	distclean: clean
86	-rm -f config.cache config.log config.h Makefile	88	-rm -f config.cache config.log config.h Makefile \
		89	aclocal.m4 config.status
		90	-rm -rf autom4te.cache
		91

Lines 23-40 Link Here

(-)tsocks-1.8/parser.h (-1 / +5 lines)
23	struct netent {	23	struct netent {
24	struct in_addr localip; /* Base IP of the network */	24	struct in_addr localip; /* Base IP of the network */
25	struct in_addr localnet; /* Mask for the network */	25	struct in_addr localnet; /* Mask for the network */
26	unsigned long startport; /* Range of ports for the */	26	unsigned long startport; /* Range of ports for the */
27	unsigned long endport; /* network */	27	unsigned long endport; /* network */
28	struct netent next; / Pointer to next network entry */	28	struct netent next; / Pointer to next network entry */
29	};	29	};
30		30
31	/* Structure representing a complete parsed file */	31	/* Structure representing a complete parsed file */
32	struct parsedfile {	32	struct parsedfile {
33	struct netent *localnets;	33	struct netent *localnets;
34	struct serverent defaultserver;	34	struct serverent defaultserver;
35	struct serverent *paths;	35	struct serverent *paths;
		36	int tordns_enabled;
		37	int tordns_failopen;
		38	int tordns_cache_size;
		39	struct netent *tordns_deadpool_range;
36	};	40	};
37		41
38	/* Functions provided by parser module */	42	/* Functions provided by parser module */
39	int read_config(char , struct parsedfile );	43	int read_config(char , struct parsedfile );
40	int is_local(struct parsedfile , struct in_addr );	44	int is_local(struct parsedfile , struct in_addr );

Line 0 Link Here

(-)tsocks-1.8/README.TORDNS (+187 lines)
		1
		2	TORDNS
		3	======
		4
		5	What is it?
		6	-----------
		7
		8	This patch modifies the tsocks library to use SOCKS for name resolution.
		9
		10
		11	Why should I use it?
		12	--------------------
		13
		14	* It's easier.
		15
		16	When using this patch you don't (always..) need to run 'tor-resolve' when
		17	using 'torify' anymore. Also, 'torify' now works directly with SSH without
		18	the need for connect scripts or other fiddling. [As long as SSH is not
		19	installed suid root].
		20
		21	* It allows you to use programs which are not SOCKS aware to connect to
		22	.onion sites.
		23
		24	For example, you can ssh directly to a .onion site, or use telnet / netcat
		25	without hassle.
		26
		27
		28	QUICK: what do I need to do to make it work?
		29	--------------------------------------------
		30
		31	Configuration instructions:
		32
		33	1) Get the sources
		34
		35	wget http://ftp1.sourceforge.net/tsocks/tsocks-1.8beta5.tar.gz
		36	wget http://www.totalinfosecurity.com/patches/tor-tsocks/tordns-1.8b5.patch
		37
		38	2) Unpack and apply the tsocks patch
		39
		40	tar xzvf tsocks-1.8beta5.tar.gz
		41	cd tsocks-1.8
		42	patch -p1 < ../tordns-1.8b5.patch
		43
		44	3) Configure, compile and install
		45
		46	NOTE: The default 'configure' settings for tsocks have been changed by
		47	this patch. The --disable-hostnames option (don't try to use DNS to look
		48	up SOCKS servers) is now enabled by default. Also, tordns is enabled
		49	by default.
		50
		51	./configure
		52	make
		53	make install
		54
		55	All the tordns config options have sane default values which you should
		56	not need to change.
		57
		58
		59	Why did I need to use 'tor-resolve' with 'torify' in the first place?
		60	---------------------------------------------------------------------
		61
		62	Because if you run "torify telnet bar.foo.com 31337", for example, then
		63	you're leaking information about what sites you're visiting to DNS servers.
		64
65	The tor-resolve utility resolves names through tor using SOCKS, in a way
66	that shouldn't compromise your privacy.
67
68
69	What won't work with this?
70	--------------------------
71
72	The 'tordns' feature for tsocks only works with applications using the
73	standard c library name lookup mechanisms.
74
75	Some programs roll their own name lookup functions, for example, 'curl'
76	uses the 'adns' library, not the standard c library name lookup calls.
77	In this case, you'll still be leaking DNS requests.
78
79	However, it seems that most programs which go to the trouble of implementing
80	asynchronous DNS requests or doing other tricky things have native SOCKS or
81	HTTP proxy support.
82
83	Requests for reverse name lookups are not intercepted.
84
85	Finally, the tsocks library is NOT thread-safe, with or without this patch.
86	You should not 'torify' multithreaded applications.
87
88
89	How does it work?
90	-----------------
91
92	This patch adds interceptors for common name resolution calls to tsocks.
93	Specifically, the 'gethostbyname', 'getaddrinfo' and 'getipnodebyname' library
94	functions. (gethostbyname_r is not supported).
95
96	When a call to one of these functions is intercepted, a SOCKS4A resolve
97	request is used to retrieve the relevant information, and the results are
98	cached.
99
100	When the application calls 'connect', the cache is consulted and instead
101	of making a SOCKS5 request and supplying the IP address, we connect using
102	the name. This prevents those messages in the tor logs which look like:
103
104	Sep 23 10:12:20.901 [warn] fetch_from_buf_socks(): Your application (using s
105	ocks5 on port 80) is giving Tor only an IP address. Applications that do DNS
106	resolves themselves may leak information. Consider using Socks4A (e.g. via
107	privoxy or socat) instead.
108
109	There are special provisions for handling .onion sites. When a program asks
110	to resolve a name ending in '.onion', no name lookup is performed. A bogus IP
111	address is returned. The range of unused IP addresses to hand out is called the
112	"deadpool". This IP address doesn't mean anything in particular, and could be
113	considered a cookie associated with the name. When the application eventually
114	calls 'connect' with this bogus IP, the cache is consulted and the result is a
115	SOCKS5 request which includes the name of the .onion site.
116
117	The default deadpool range is '127.0.69.0/255.255.255.0'. NOTE: if a resolve
118	request results in an IP from the deadpool range then the response is rejected,
119	and it appears to the application that the lookup failed.
120
121	The lookup cache is kept in mmap'd memory and shared across fork() calls.
122	This is because some programs perform name lookups in a child process and
123	then invoke 'connect' in the parent as a kind of "poor man's async DNS".
124
125
126	Advanced configuration options
127	------------------------------
128
129	The following options have been added to the tsocks configuration file:
130
131	tordns_enable
132
133	The default value is 'true'. If you set it to 'false', tsocks should work
134	just like it did without the tordns patch.
135
136
137	tordns_deadpool_range
138
139	The default value is '127.0.69.0/255.255.255.0'. This specifies what range
140	of IP addresses will be handed to the application as "cookies" for .onion
141	names. Of course, you should pick a block of addresses which you aren't
142	going to ever need to actually connect to.
143
144
145	tordns_cache_size
146
147	This specifies the number of IP addresses looked up through socks to cache.
148	The default value is 256. The default value is 256. Each entry consumes 260
149	bytes of memory, so the default adds 66,560 bytes of overhead to each
150	'torified' process. NOTE: if the number of IP addresses in
151	tordns_deadpool_range is less than the value specified for tordns_cache_size,
152	then the cache will be shrunk to fit the deadpool range. This is to prevent
153	duplicate deadpool addresses from ever appearing in the cache.
154
155
156	TODO
157	----
158
159	* Think about how local names get resolved. Is it important? For example,
160	if I 'telnet localhost' which using tordns, what should happen? Should
161	we search through /etc/hosts ourselves or what?
162
163	* What about the isc library calls like res_init and so on? How widely are
164	they use? Does this present a more elegant way to implement this stuff?
165
166	* Perhaps intercept res_query etc and try to do something appropriate.
167
168	* It should be possible to make this thread-safe with --enable-threads.
169
170	* validateconf needs to be updated to understand (and show information about)
171	the tordns configuration options.
172
173	* Perhaps intercept reverse name lookups?
174
175	* In fact, one could modify tsocks further to play nicely with tor. For
176	example, you could prevent nonlocal UDP traffic from being sent at all,
177	and so on.
178
179
180	******************************************************
181	Questions or comments, please contact:
182	Blair Strang (bls@totalinfosecurity.com)
183	Caleb Anderson (caleb.anderson@totalinfosecurity.com)
184	Carl Purvis (carl.purvis@totalinfosecurity.com)
185
186	Total Information Security Ltd.
187	http://www.totalinfosecurity.com/

Lines 51-69 Link Here

(-)tsocks-1.8/tsocks.c (-33 / +186 lines)
51	#ifdef USE_SOCKS_DNS	51	#ifdef USE_SOCKS_DNS
52	#include <resolv.h>	52	#include <resolv.h>
53	#endif	53	#endif
54	#include <parser.h>	54	#include <parser.h>
55	#include <tsocks.h>	55	#include <tsocks.h>
		56	#include "dead_pool.h"
56		57
57	/* Global Declarations */	58	/* Global Declarations */
58	#ifdef USE_SOCKS_DNS	59	#ifdef USE_SOCKS_DNS
59	static int (*realresinit)(void);	60	static int (*realresinit)(void);
60	#endif	61	#endif
61	static int (*realconnect)(CONNECT_SIGNATURE);	62	#ifdef USE_TOR_DNS
		63	static dead_pool *pool = NULL;
		64	static struct hostent (realgethostbyname)(GETHOSTBYNAME_SIGNATURE);
		65	int (*realgetaddrinfo)(GETADDRINFO_SIGNATURE);
		66	static struct hostent (realgetipnodebyname)(GETIPNODEBYNAME_SIGNATURE);
		67	#endif
		68	int (*realconnect)(CONNECT_SIGNATURE);
62	static int (*realselect)(SELECT_SIGNATURE);	69	static int (*realselect)(SELECT_SIGNATURE);
63	static int (*realpoll)(POLL_SIGNATURE);	70	static int (*realpoll)(POLL_SIGNATURE);
64	static int (*realclose)(CLOSE_SIGNATURE);	71	int (*realclose)(CLOSE_SIGNATURE);
65	static struct parsedfile *config;	72	static struct parsedfile *config;
66	static struct connreq *requests = NULL;	73	static struct connreq *requests = NULL;
67	static int suid = 0;	74	static int suid = 0;
68	static char *conffile = NULL;	75	static char *conffile = NULL;
69		76
Lines 74-83 Link Here
74	int poll(POLL_SIGNATURE);	81	int poll(POLL_SIGNATURE);
75	int close(CLOSE_SIGNATURE);	82	int close(CLOSE_SIGNATURE);
76	#ifdef USE_SOCKS_DNS	83	#ifdef USE_SOCKS_DNS
77	int res_init(void);	84	int res_init(void);
78	#endif	85	#endif
		86	#ifdef USE_TOR_DNS
		87	struct hostent *gethostbyname(GETHOSTBYNAME_SIGNATURE);
		88	int getaddrinfo(GETADDRINFO_SIGNATURE);
		89	struct hostent *getipnodebyname(GETIPNODEBYNAME_SIGNATURE);
		90	#endif
79		91
80	/* Private Function Prototypes */	92	/* Private Function Prototypes */
81	static int get_config();	93	static int get_config();
82	static int get_environment();	94	static int get_environment();
83	static int connect_server(struct connreq *conn);	95	static int connect_server(struct connreq *conn);
Lines 97-106 Link Here
97	static int recv_buffer(struct connreq *conn);	109	static int recv_buffer(struct connreq *conn);
98	static int read_socksv5_method(struct connreq *conn);	110	static int read_socksv5_method(struct connreq *conn);
99	static int read_socksv4_req(struct connreq *conn);	111	static int read_socksv4_req(struct connreq *conn);
100	static int read_socksv5_connect(struct connreq *conn);	112	static int read_socksv5_connect(struct connreq *conn);
101	static int read_socksv5_auth(struct connreq *conn);	113	static int read_socksv5_auth(struct connreq *conn);
		114	#ifdef USE_TOR_DNS
		115	static int deadpool_init();
		116	static int send_socksv4a_request(struct connreq conn, const char onion_host);
		117	#endif
102		118
103	void _init(void) {	119	void _init(void) {
104	#ifdef USE_OLD_DLSYM	120	#ifdef USE_OLD_DLSYM
105	void *lib;	121	void *lib;
106	#endif	122	#endif
Lines 118-141 Link Here
118	realpoll = dlsym(RTLD_NEXT, "poll");	134	realpoll = dlsym(RTLD_NEXT, "poll");
119	realclose = dlsym(RTLD_NEXT, "close");	135	realclose = dlsym(RTLD_NEXT, "close");
120	#ifdef USE_SOCKS_DNS	136	#ifdef USE_SOCKS_DNS
121	realresinit = dlsym(RTLD_NEXT, "res_init");	137	realresinit = dlsym(RTLD_NEXT, "res_init");
122	#endif	138	#endif
		139	#ifdef USE_TOR_DNS
		140	realgethostbyname = dlsym(RTLD_NEXT, "gethostbyname");
		141	realgetaddrinfo = dlsym(RTLD_NEXT, "getaddrinfo");
		142	realgetipnodebyname = dlsym(RTLD_NEXT, "getipnodebyname");
		143	#endif
123	#else	144	#else
124	lib = dlopen(LIBCONNECT, RTLD_LAZY);	145	lib = dlopen(LIBCONNECT, RTLD_LAZY);
125	realconnect = dlsym(lib, "connect");	146	realconnect = dlsym(lib, "connect");
126	realselect = dlsym(lib, "select");	147	realselect = dlsym(lib, "select");
127	realpoll = dlsym(lib, "poll");	148	realpoll = dlsym(lib, "poll");
128	#ifdef USE_SOCKS_DNS	149	#ifdef USE_SOCKS_DNS
129	realresinit = dlsym(lib, "res_init");	150	realresinit = dlsym(lib, "res_init");
130	#endif	151	#endif
131	dlclose(lib);	152	#ifdef USE_TOR_DNS
132		153	realgethostbyname = dlsym(lib, "gethostbyname");
		154	realgetaddrinfo = dlsym(lib, "getaddrinfo");
		155	realgetipnodebyname = dlsym(RTLD_NEXT, "getipnodebyname");
		156	#endif
		157	dlclose(lib);
133	lib = dlopen(LIBC, RTLD_LAZY);	158	lib = dlopen(LIBC, RTLD_LAZY);
134	realclose = dlsym(lib, "close");	159	realclose = dlsym(lib, "close");
135	dlclose(lib);	160	dlclose(lib);
136	#endif	161	#endif
		162	#ifdef USE_TOR_DNS
		163	/* Unfortunately, we can't do this lazily because otherwise our mmap'd
		164	area won't be shared across fork()s. */
		165	deadpool_init();
		166	#endif
137	}	167	}
138		168
139	static int get_environment() {	169	static int get_environment() {
140	static int done = 0;	170	static int done = 0;
141	int loglevel = MSGERR;	171	int loglevel = MSGERR;
Lines 181-192 Link Here
181	if (config->paths)	211	if (config->paths)
182	show_msg(MSGDEBUG, "First lineno for first path is %d\n", config->paths->lineno);	212	show_msg(MSGDEBUG, "First lineno for first path is %d\n", config->paths->lineno);
183		213
184	done = 1;	214	done = 1;
185		215
186	return(0);	216	return(0);
187
188	}	217	}
189		218
190	int connect(CONNECT_SIGNATURE) {	219	int connect(CONNECT_SIGNATURE) {
191	struct sockaddr_in *connaddr;	220	struct sockaddr_in *connaddr;
192	struct sockaddr_in peer_address;	221	struct sockaddr_in peer_address;
Lines 271-286 Link Here
271	if (!getpeername(__fd, (struct sockaddr *) &peer_address, &namelen)) {	300	if (!getpeername(__fd, (struct sockaddr *) &peer_address, &namelen)) {
272	show_msg(MSGDEBUG, "Socket is already connected, defering to "	301	show_msg(MSGDEBUG, "Socket is already connected, defering to "
273	"real connect\n");	302	"real connect\n");
274	return(realconnect(__fd, __addr, __len));	303	return(realconnect(__fd, __addr, __len));
275	}	304	}
276		305
277	show_msg(MSGDEBUG, "Got connection request for socket %d to "	306	show_msg(MSGDEBUG, "Got connection request for socket %d to "
278	"%s\n", __fd, inet_ntoa(connaddr->sin_addr));	307	"%s\n", __fd, inet_ntoa(connaddr->sin_addr));
279		308
280	/* If the address is local call realconnect */	309	/* If the address is local call realconnect */
		310	#ifdef USE_TOR_DNS
		311	if (!(is_local(config, &(connaddr->sin_addr))) &&
		312	!is_dead_address(pool, connaddr->sin_addr.s_addr)) {
		313	#else
281	if (!(is_local(config, &(connaddr->sin_addr)))) {	314	if (!(is_local(config, &(connaddr->sin_addr)))) {
		315	#endif
282	show_msg(MSGDEBUG, "Connection for socket %d is local\n", __fd);	316	show_msg(MSGDEBUG, "Connection for socket %d is local\n", __fd);
283	return(realconnect(__fd, __addr, __len));	317	return(realconnect(__fd, __addr, __len));
284	}	318	}
285		319
286	/* Ok, so its not local, we need a path to the net */	320	/* Ok, so its not local, we need a path to the net */
Lines 869-887 Link Here
869	return((rc ? errno : 0));	903	return((rc ? errno : 0));
870	}	904	}
871		905
872	static int send_socks_request(struct connreq *conn) {	906	static int send_socks_request(struct connreq *conn) {
873	int rc = 0;	907	int rc = 0;
874
875	if (conn->path->type == 4)
876	rc = send_socksv4_request(conn);
877	else
878	rc = send_socksv5_method(conn);
879		908
		909	#ifdef USE_TOR_DNS
		910	if (conn->path->type == 4) {
		911	char *name = get_pool_entry(pool, &(conn->connaddr.sin_addr));
		912	if(name != NULL) {
		913	rc = send_socksv4a_request(conn,name);
		914	} else {
		915	rc = send_socksv4_request(conn);
		916	}
		917	#else
		918	if (conn->path->type == 4) {
		919	rc = send_socksv4_request(conn);
		920	#endif
		921	} else {
		922	rc = send_socksv5_method(conn);
		923	}
880	return(rc);	924	return(rc);
881	}	925	}
882		926
		927	#ifdef USE_TOR_DNS
		928	static int send_socksv4a_request(struct connreq conn,const char onion_host)
		929	{
		930	struct passwd *user;
		931	struct sockreq *thisreq;
		932	int endOfUser;
		933	/* Determine the current username */
		934	user = getpwuid(getuid());
		935
		936	thisreq = (struct sockreq *) conn->buffer;
		937	endOfUser=sizeof(struct sockreq) +
		938	(user == NULL ? 0 : strlen(user->pw_name)) + 1;
		939
		940	/* Check the buffer has enough space for the request */
		941	/* and the user name */
		942	conn->datalen = endOfUser+
		943	(onion_host == NULL ? 0 : strlen(onion_host)) + 1;
		944	if (sizeof(conn->buffer) < conn->datalen) {
		945	show_msg(MSGERR, "The SOCKS username is too long");
		946	conn->state = FAILED;
		947	return(ECONNREFUSED);
		948	}
		949
		950	/* Create the request */
		951	thisreq->version = 4;
		952	thisreq->command = 1;
		953	thisreq->dstport = conn->connaddr.sin_port;
		954	thisreq->dstip = htonl(1);
		955
		956	/* Copy the username */
		957	strcpy((char *) thisreq + sizeof(struct sockreq),
		958	(user == NULL ? "" : user->pw_name));
		959
		960	/* Copy the onion host */
		961	strcpy((char *) thisreq + endOfUser,
		962	(onion_host == NULL ? "" : onion_host));
		963
		964	conn->datadone = 0;
		965	conn->state = SENDING;
		966	conn->nextstate = SENTV4REQ;
		967
		968	return(0);
		969	}
		970	#endif /* USE_TOR_DNS */
		971
883	static int send_socksv4_request(struct connreq *conn) {	972	static int send_socksv4_request(struct connreq *conn) {
884	struct passwd *user;	973	struct passwd *user;
885	struct sockreq *thisreq;	974	struct sockreq *thisreq;
886		975
887	/* Determine the current username */	976	/* Determine the current username */
Lines 931-940 Link Here
931		1020
932	return(0);	1021	return(0);
933	}	1022	}
934		1023
935	static int send_socksv5_connect(struct connreq *conn) {	1024	static int send_socksv5_connect(struct connreq *conn) {
		1025	#ifdef USE_TOR_DNS
		1026	int namelen = 0;
		1027	char *name = NULL;
		1028	#endif
936	char constring[] = { 0x05, /* Version 5 SOCKS */	1029	char constring[] = { 0x05, /* Version 5 SOCKS */
937	0x01, /* Connect request */	1030	0x01, /* Connect request */
938	0x00, /* Reserved */	1031	0x00, /* Reserved */
939	0x01 }; /* IP Version 4 */	1032	0x01 }; /* IP Version 4 */
940		1033
Lines 942-955 Link Here
942	conn->datadone = 0;	1035	conn->datadone = 0;
943	conn->state = SENDING;	1036	conn->state = SENDING;
944	conn->nextstate = SENTV5CONNECT;	1037	conn->nextstate = SENTV5CONNECT;
945	memcpy(conn->buffer, constring, sizeof(constring));	1038	memcpy(conn->buffer, constring, sizeof(constring));
946	conn->datalen = sizeof(constring);	1039	conn->datalen = sizeof(constring);
947	memcpy(&conn->buffer[conn->datalen], &(conn->connaddr.sin_addr.s_addr),	1040
948	sizeof(conn->connaddr.sin_addr.s_addr));	1041	#ifdef USE_TOR_DNS
949	conn->datalen += sizeof(conn->connaddr.sin_addr.s_addr);	1042	show_msg(MSGDEBUG, "send_socksv5_connect: looking for: %s\n",
950	memcpy(&conn->buffer[conn->datalen], &(conn->connaddr.sin_port), sizeof(conn->connaddr.sin_port));	1043	inet_ntoa(conn->connaddr.sin_addr));
		1044
		1045	name = get_pool_entry(pool, &(conn->connaddr.sin_addr));
		1046	if(name != NULL) {
		1047	namelen = strlen(name);
		1048	if(namelen > 255) { /* "Can't happen" */
		1049	name = NULL;
		1050	}
		1051	}
		1052	if(name != NULL) {
		1053	show_msg(MSGDEBUG, "send_socksv5_connect: found it!\n");
		1054	/* Substitute the domain name from the pool into the SOCKS request. */
		1055	conn->buffer[3] = 0x03; /* Change the ATYP field */
		1056	conn->buffer[4] = namelen; /* Length of name */
		1057	conn->datalen++;
		1058	memcpy(&conn->buffer[conn->datalen], name, namelen);
		1059	conn->datalen += namelen;
		1060	} else {
		1061	show_msg(MSGDEBUG, "send_socksv5_connect: ip address not found\n");
		1062	#endif
		1063	/* Use the raw IP address */
		1064	memcpy(&conn->buffer[conn->datalen], &(conn->connaddr.sin_addr.s_addr),
		1065	sizeof(conn->connaddr.sin_addr.s_addr));
		1066	conn->datalen += sizeof(conn->connaddr.sin_addr.s_addr);
		1067	#ifdef USE_TOR_DNS
		1068	}
		1069	#endif
		1070	memcpy(&conn->buffer[conn->datalen], &(conn->connaddr.sin_port),
		1071	sizeof(conn->connaddr.sin_port));
951	conn->datalen += sizeof(conn->connaddr.sin_port);	1072	conn->datalen += sizeof(conn->connaddr.sin_port);
952		1073
953	return(0);	1074	return(0);
954	}	1075	}
955		1076
Lines 1175-1198 Link Here
1175		1296
1176	return(rc);	1297	return(rc);
1177	}	1298	}
1178	#endif	1299	#endif
1179		1300
1180	#if 0	1301	#ifdef USE_TOR_DNS
1181	/* Get the flags of the socket, (incase its non blocking */	1302	static int deadpool_init()
1182	if ((sockflags = fcntl(sockid, F_GETFL)) == -1) {	1303	{
1183	sockflags = 0;	1304	if(!pool) {
1184	}	1305	get_environment();
		1306	get_config();
		1307	if(config->tordns_enabled) {
		1308	pool = init_pool(
		1309	config->tordns_cache_size,
		1310	config->tordns_deadpool_range->localip,
		1311	config->tordns_deadpool_range->localnet,
		1312	config->defaultserver.address,
		1313	config->defaultserver.port
		1314	);
		1315	if(!pool) {
		1316	show_msg(MSGERR, "failed to initialize deadpool: tordns disabled\n");
		1317	}
		1318	}
		1319	}
		1320	return 0;
		1321	}
		1322
		1323	struct hostent *gethostbyname(GETHOSTBYNAME_SIGNATURE)
		1324	{
		1325	if(pool) {
		1326	return our_gethostbyname(pool, name);
		1327	} else {
		1328	return realgethostbyname(name);
		1329	}
		1330	}
		1331
		1332	int getaddrinfo(GETADDRINFO_SIGNATURE)
		1333	{
		1334	if(pool) {
		1335	return our_getaddrinfo(pool, node, service, hints, res);
		1336	} else {
		1337	return realgetaddrinfo(node, service, hints, res);
		1338	}
		1339	}
		1340
		1341	struct hostent *getipnodebyname(GETIPNODEBYNAME_SIGNATURE)
		1342	{
		1343	if(pool) {
		1344	return our_getipnodebyname(pool, name, af, flags, error_num);
		1345	} else {
		1346	return realgetipnodebyname(name, af, flags, error_num);
		1347	}
		1348	}
1185		1349
1186	/* If the flags show the socket as blocking, set it to */
1187	/* blocking for our connection to the socks server */
1188	if ((sockflags & O_NONBLOCK) != 0) {
1189	fcntl(sockid, F_SETFL, sockflags & (~(O_NONBLOCK)));
1190	}
1191	#endif	1350	#endif
1192	#if 0
1193	/* If the socket was in non blocking mode, restore that */
1194	if ((sockflags & O_NONBLOCK) != 0) {
1195	fcntl(sockid, F_SETFL, sockflags);
1196	}
1197	#endif
1198		1351

Lines 124-133 Link Here

(-)tsocks-1.8/tsocks.conf.5 (+23 lines)
124	150.0.0.0:80-1024/255.0.0.0" indicates to tsocks that the SOCKS server	124	150.0.0.0:80-1024/255.0.0.0" indicates to tsocks that the SOCKS server
125	specified in the current path block should be used to access any IPs in the	125	specified in the current path block should be used to access any IPs in the
126	range 150.0.0.0 to 150.255.255.255 when the connection request is for ports	126	range 150.0.0.0 to 150.255.255.255 when the connection request is for ports
127	80-1024.	127	80-1024.
128		128
		129	.TP
		130	.I tordns_enable
		131	This enables the use of the 'tordns' feature in tsocks, which overrides the
		132	standard C library name resolution calls to use SOCKS. The default value is
		133	'true'.
		134
		135	.TP
		136	.I tordns_deadpool_range
		137	Tor hidden sites do not have real IP addresses. This specifies what range of
		138	IP addresses will be handed to the application as "cookies" for .onion names.
		139	Of course, you should pick a block of addresses which you aren't going to ever
		140	need to actually connect to. The default value is '127.0.69.0/255.255.255.0'.
		141
		142	.TP
		143	.I tordns_cache_size
		144	This specifies the number of IP addresses looked up through SOCKS to cache.
		145	The default value is 256. Each entry consumes 260 bytes of memory, so the
		146	default adds 66,560 bytes of overhead to each 'torified' process. NOTE: if
		147	the number of IP addresses in tordns_deadpool_range is less than the value
		148	specified for tordns_cache_size, then the cache will be shrunk to fit the
		149	deadpool range. This is to prevent duplicate deadpool addresses from ever
		150	appearing in the cache.
		151
129	.SH UTILITIES	152	.SH UTILITIES
130	tsocks comes with two utilities that can be useful in creating and verifying	153	tsocks comes with two utilities that can be useful in creating and verifying
131	the tsocks configuration file.	154	the tsocks configuration file.
132		155
133	.TP	156	.TP

Lines 161-171 Link Here

(-)tsocks-1.8/validateconf.c (-1 / +14 lines)
161	printf("\n");	161	printf("\n");
162	server = server->next;	162	server = server->next;
163	}	163	}
164	}	164	}
165		165
166	return;	166	#ifdef USE_TOR_DNS
		167	/* Show tordns configuration options */
		168	printf("=== TorDNS Configuration Options ===\n");
		169	printf("Tor DNS enabled: %s\n",
		170	config->tordns_enabled ? "yes" : "no");
		171	printf("Tor DNS deadpool range: %s/",
		172	inet_ntoa(config->tordns_deadpool_range->localip));
		173	printf("%s\n",
		174	inet_ntoa(config->tordns_deadpool_range->localnet));
		175	printf("Tor DNS cache size: %d\n", config->tordns_cache_size);
		176	printf("\n");
		177	#endif
		178
		179	return;
167	}	180	}
168		181
169	void show_server(struct parsedfile config, struct serverent server, int def) {	182	void show_server(struct parsedfile config, struct serverent server, int def) {
170	struct in_addr res;	183	struct in_addr res;
171	struct netent *net;	184	struct netent *net;