Hello,
I have been trying to get the tshark to save files ever 60 seconds but I
get a unexpected error both in Linux and Windows.
D:\>tshark -b duration:60 -w test.cap -f http
tshark: Multiple capture files requested, but no maximum capture
file size was specified.
D:\>tshark -v
TShark 0.99.4 (SVN Rev 19757)
Copyright 1998-2006 Gerald Combs <[EMAIL PROTECTED]> and
contributors.
This is free software; see the source for copying conditions.
There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled with GLib 2.6.6, with WinPcap (version unknown), with
libz 1.2.3, with
libpcre 6.4, with Net-SNMP 5.3.1, with ADNS, with Lua 5.1, with
GnuTLS 1.5.1,
with Gcrypt 1.2.3, with MIT Kerberos.
Running on Windows XP Service Pack 2, build 2600, with WinPcap
version 3.1
(packet.dll version 3, 1, 0, 27), based on libpcap version
0.9[.x].
Built using Microsoft Visual C++ 6.0 build 8804
Reviewing the archives I see that someone else had the same problem, but
this was not fixed in 0.94 or 0.95 as the response suggests
http://www.wireshark.org/lists/wireshark-users/200701/msg01139.html
I've had a quick look at the code and I can see the specific problem.
At line 1288 of tshark.c there seems that the command validation only
allows the filesize method of autostopping.
if (!capture_opts.has_autostop_filesize) {
cmdarg_err("Multiple capture files requested, but "
"no maximum capture file size was specified.");
exit(1);
}
I have naively tweaked this to try to allow for a duration instead but
it makes no difference.
if (!capture_opts.has_autostop_filesize &&
!capture_opts.has_autostop_duration ) {
cmdarg_err("Multiple capture files requested, but "
"no maximum capture file size was specified.");
exit(1);
}
>From scanning the code it appears the functionality is all there, its
just that the argument parsing is not working. Does anybody with more
c-foo than me know how to fix this?
Cheers
Alistair
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