Bug 83429 – ethereal-0.10.11 - capture using stdin or fifo does not work

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Oliver Walter 2005-02-26 20:04:17 UTC]

Since ethereal-0.10.9 capturing from stdin and fifo no longer works.


Reproducible: Always
Steps to Reproduce:
1. "tcpdump -i eth0 -w - -s 0 -l|ethereal -i - -k -S"
2. make some traffic
Actual Results:  
Ethereal starts, shows (captures?) nothing, capturing stops after a while with
the message: "Child capture process died: Segmentation violation" and the
messages that no packets were captured.

Expected Results:  
Ethereal should show a live capture as if you were capturing from a network
interface.
This still works with ethereal-0.10.8 and lower.
I need this to do a remote capture on my routers using 'ssh host "tcpdump...'

Portage 2.0.51-r15 (default-linux/x86/2004.2, gcc-3.3.5,
glibc-2.3.4.20040808-r1, 2.4.26-gentoo-r9 i686)
=================================================================
System uname: 2.4.26-gentoo-r9 i686 mobile AMD Athlon(tm) XP-M 2600+
Gentoo Base System version 1.4.16
Python:              dev-lang/python-2.3.4-r1 [2.3.4 (#1, Feb  8 2005, 14:07:29)]
dev-lang/python:     2.3.4-r1
sys-devel/autoconf:  2.59-r6, 2.13
sys-devel/automake:  1.7.9-r1, 1.8.5-r3, 1.5, 1.4_p6, 1.6.3, 1.9.4
sys-devel/binutils:  2.15.92.0.2-r1
sys-devel/libtool:   1.5.10-r4
virtual/os-headers:  2.4.21-r1
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O3 -march=athlon-xp -fomit-frame-pointer -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config
/usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown
/usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/config
/usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/
/usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/
/usr/share/texmf/xdvi/ /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/afs/C /etc/afs/afsws /etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O3 -march=athlon-xp -fomit-frame-pointer -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms"
GENTOO_MIRRORS="ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/
ftp://mirrors.sec.informatik.tu-darmstadt.de/gentoo/
http://ftp.du.se/pub/os/gentoo http://ftp.lug.ro/gentoo/"
LANG="de_DE@euro"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 3dnow X a52 acpi afs alsa arts avi bash-completion berkdb bidi
bitmap-fonts bonobo bootsplash bzlib cdda cddb cdio cdr crypt cups curl dga
divx4linux doc dts dvd dvdr emboss encode esd ethereal f77 faad fam ffmpeg flac
font-server foomaticdb fortran freetype ftp gdbm ggi gif gnome gnutls gpm gtk
gtk2 gtkhtml httpd icq imagemagick imlib ipv6 jabber java jikes jpeg kde
kerberos krb4 ldap libg++ libwww live mad matroska mikmod mmx motif mozilla mpeg
mppe-mppc ncurses network nls ogg oggvorbisopengl oscar pam pcmcia pdflib perl
png pnp ppds python qt quicktime readline real samba sdl slang spell sse ssl
stream svg svga tcltk tcpd tetex theora tiff truetype truetype-fonts type1-fonts
usb utf8 v4l vcd videos vlm vorbis wxwindows xine xml xml2 xmms xosd xv xvid
zlib linguas_de"
Unset:  ASFLAGS, CBUILD, CTARGET, LC_ALL, LDFLAGS, PORTDIR_OVERLAY

[Comment 1 Aaron Walker (RETIRED) 2005-03-14 16:54:04 UTC]

Can you please test if this issue is still present in 0.10.10?

[Comment 2 Oliver Walter 2005-04-14 23:24:19 UTC]

still the same problem

[Comment 3 Oliver Walter 2005-05-04 16:00:47 UTC]

Is no one able to reproduce the bug?
Simply start "tcpdump ... -w -">fifo (create fifo with mknod) and then "ethereal -i fifo".
Make some traffic and tell us if it works.

Tody I was "forced" to ugrade ti 0.10.10 because of kismet....

[Comment 4 Daniel Black (RETIRED) 2005-05-23 14:29:36 UTC]

sorry fails for me too. 
 
using strace -fe trace=file ethereal -i /tmp/fifo 
 
shows it isn't reading from the fifo. 
wc -l /tmp/fifo 
shows there is still stuff to read is reading stuff. 
 
http://www.ethereal.com/lists/ethereal-dev/200505/msg00329.html has the 
problem upstream 
 
http://www.ethereal.com/lists/ethereal-dev/200505/msg00326.html 
seems to be fixed in the cvs version. 
 
If you can find the patch we'll fix it. 

[Comment 5 Oliver Walter 2005-05-24 10:37:59 UTC]

Thanks for your answer.
The only thing I found was this:
http://bugs.ethereal.com/bugzilla/show_bug.cgi?id=125
but I haven't tested it yet.

[Comment 6 Marcelo Goes (RETIRED) 2005-06-18 17:07:47 UTC]

Seems to be present in 0.10.11 too.

[Comment 7 petre rodan (RETIRED) 2005-07-16 05:36:00 UTC]

Created attachment 63525 [details, diff]
fifo.patch

patch obtained from diffing SVN 14441 and SVN 14442 from the ethereal
repository

[Comment 8 petre rodan (RETIRED) 2005-07-16 05:36:38 UTC]

Created attachment 63526 [details, diff]
ethereal-0.10.11-r1.ebuild

new ebuild

[Comment 9 Oliver Walter 2005-07-18 11:46:33 UTC]

Works for me.

[Comment 10 petre rodan (RETIRED) 2005-07-18 23:06:33 UTC]

@oliver 
thanks for the bug report and for your help

@netmon
I can commit this one if you want

[Comment 11 Daniel Black (RETIRED) 2005-07-19 01:58:08 UTC]

please go for it 

[Comment 12 petre rodan (RETIRED) 2005-07-19 05:28:19 UTC]

InCVS