http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1168
Summary: Delta time rollover in recording saved in SNIFFER format
Product: Wireshark
Version: 0.99.0
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: Major
Priority: Medium
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: mark.a.wigmore@xxxxxxxx
Build Information:
Compiled with GTK+ 2.6.9, with GLib 2.6.6, with WinPcap (version unknown),
with libz 1.2.3, with libpcre 6.4, with Net-SNMP 5.2.2, with ADNS, with Lua
5.1.
Running with WinPcap version 3.1 (packet.dll version 3, 1, 0, 27), based on
libpcap version 0.9[.x] on Windows XP S, build 2600.
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In a long recording saved in the Network Associates SNIFFER v2 (Windows) format
the time suddenly jumps backwards. Examining the recording it looks like a
32bit integer storing microseconds is overflowing. The time delta reaches
4294.8654 and then becomes -0.026301 in the next frame.
The file format contains two 32bit ints for time, lo and hi, so it would appear
that the high word is not being incremented. This is confirmed by an
independant tool that also shows the time resetting.
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