Bugzilla Bug 203729

du command causes lftp segfault when it tries to print size of file/dir with
long pathname.

Reproducible: Always

Steps to Reproduce:
1. create file (not empty) with long name, say
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
2. share it on ftp server
3. try 'du bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb' in
lftp
4. lftp segfaults (checked on remote serwer and localhost)
5. it also happens if path is very long e.g.
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/bbbbbbbbbb

Actual Results:  
gdb bt full

#0  0x000000327e476c10 in strlen () from /lib/libc.so.6
No symbol table info available.
#1  0x000000327e445e10 in vfprintf () from /lib/libc.so.6
No symbol table info available.
#2  0x000000327e4697fa in vsnprintf () from /lib/libc.so.6
No symbol table info available.
#3  0x00002b9562760c17 in Buffer::vFormat (this=0x6139d0, f=0x2b956251ebc8
"%s\t%s\n", v=0x7fff485e1eb0)
    at buffer.cc:158
        tmp = {{gp_offset = 32, fp_offset = 48, overflow_arg_area =
0x7fff485e1f90, reg_save_area = 0x7fff485e1ed0}}
        res = <value optimized out>
        size = 1649535944
#4  0x00002b9562760cdc in Buffer::Format (this=0x9, f=0x2b956251ebc8
"%s\t%s\n") at buffer.cc:147
        v = {{gp_offset = 40, fp_offset = 48, overflow_arg_area =
0x7fff485e1f90, reg_save_area = 0x7fff485e1ed0}}
#5  0x00002b9562514bc0 in FinderJob_Du::print_size (this=0x6694e0,
n_blocks=<value optimized out>, 
    string=0x687d90 'b' <repeats 64 times>) at FindJobDu.cc:177
        buffer =
"\n\000\000\000\000\000\000\0008zf\000\000\000\000\000\001\000\000\000\000\000\000\000\024\000\000\000\000\000\000\000=É\r\215\000\000\000\000L\216\000~2\000\000\000\002\000\000\000\000\000\000\000\234SNb\225+\000\000Zìm\020\000\000\000\000L\216\000~=\000\000\000$74\002\000\000\000\000\000
^Hÿ\177\000\000h!^Hÿ\177\000\000ø[Nb\225+", '\0' <repeats 18 times>,
"ØPLb\225+\000\000rþNb\225+\000\000p³Nb\225+\000\000H\201Nb\225+\000\000\000\000\000\000\001\000\000\000\216\001\000\000\001\000\000\0008tsb\225+\000\0000TLb\225+\000\000 !^Hÿ\177\000\000P!^Hÿ\177\000\000"...
#6  0x00002b9562514d1b in FinderJob_Du::ProcessFile (this=0x6694e0, d=<value
optimized out>, fi=0x688170)
    at FindJobDu.cc:141
        add = <value optimized out>
#7  0x00002b95625133c1 in FinderJob::Do (this=0x6694e0) at FindJob.cc:144
        m = 1
        pres = <value optimized out>
        j = <value optimized out>
#8  0x00002b956274c46e in SMTask::Schedule () at SMTask.cc:226
        scan = (SMTask *) 0x6694e0
        timer_timeout = <value optimized out>
        res = 0
#9  0x00002b95624fc9b2 in Job::WaitDone (this=0x6136d0) at Job.cc:522
No locals.
#10 0x0000000000405be8 in main (argc=1, argv=0x7fff485e2418) at lftp.cc:466
        home = <value optimized out>
        exit_code = <value optimized out>
#11 0x000000327e41e1f4 in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#12 0x0000000000405239 in _start ()
No symbol table info available.



Portage 2.1.4_rc9 (default-linux/amd64/2007.0, gcc-4.2.2, glibc-2.7-r1,
2.6.23-tuxonice-r4 x86_64)
=================================================================
System uname: 2.6.23-tuxonice-r4 x86_64 Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz
Timestamp of tree: Wed, 12 Dec 2007 17:16:01 +0000
app-shells/bash:     3.2_p17-r1
dev-java/java-config: 1.3.7, 2.1.3
dev-lang/python:     2.5.1-r4
sys-apps/baselayout: 1.12.10-r5
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.61-r1
sys-devel/automake:  1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils:  2.18-r1
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   1.5.24
virtual/os-headers:  2.6.23-r2
ACCEPT_KEYWORDS="amd64 ~amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=nocona -O2 -pipe -ggdb"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf
/etc/gconf /etc/php/apache2-php4/ext-active/ /etc/php/apache2-php5/ext-active/
/etc/php/cgi-php4/ext-active/ /etc/php/cgi-php5/ext-active/
/etc/php/cli-php4/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild
/etc/splash /etc/terminfo /etc/texmf/web2c /etc/udev/rules.d"
CXXFLAGS="-march=nocona -O2 -pipe -ggdb"
DISTDIR="/usr/portage.distfiles"
FEATURES="distlocks fixpackages metadata-transfer parallel-fetch sandbox
sfperms splitdebug strict test unmerge-orphans userfetch userpriv usersandbox"
GENTOO_MIRRORS="http://gentoo.prz.rzeszow.pl ftp://gentoo.po.opole.pl
ftp://pandemonium.tiscali.de/pub/gentoo/
ftp://ftp.tu-clausthal.de/pub/linux/gentoo/"
LANG="pl_PL.UTF-8"
LC_ALL="pl_PL.UTF-8"
LINGUAS="pl"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude=/distfiles --exclude=/local --exclude=/packages
--filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/layman/sunrise
/usr/portage/local/layman/custom-kernels /usr/local/portage"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="X aac alsa amd64 apache2 bash-completion berkdb bitmap-fonts cairo cdr cli
cracklib crypt cups dbus dri dvd dvdr dvdread encode flac gdbm gif gnutls gpm
gstreamer gtk hal iconv java jpeg kdeenablefinal kdehiddenvisibility lcms
logrotate mad midi mmx mp3 mpeg mudflap musepack mysql ncurses nls nptl
nptlonly nsplugin ogg opengl openmp oss pam pcre pdf perl php png postgres
python quicktime readline sasl sdl session slang spell spl sse sse2 ssl svg
tcpd test threads truetype truetype-fonts type1-fonts unicode vim-syntax vorbis
xcomposite xml xorg xvid zlib" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="adpcm
alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa
lfloat linear meter mulaw multi null plug rate route share shm softvol"
APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm
authn_default authn_file authz_dbm authz_default authz_groupfile authz_host
authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir
disk_cache env expires ext_filter file_cache filter headers include info
log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling
status unique_id userdir usertrack vhost_alias" ELIBC="glibc"
INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz
cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="pl"
USERLAND="GNU" VIDEO_CARDS="i810 i830 i915 vesa"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS,
PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

Created an attachment (id=139942) [edit]
patch from Alexander V. Lukyanov

Fixed in -r1, thanks