Wireshark mailing list archives
Re: pcap_next_ex() crashes
From: Jaap Keuter <jaap.keuter () xs4all nl>
Date: Fri, 05 Mar 2010 14:57:53 +0100
Hi, Although Wireshark uses libpcap, these are libpcap questions, not Wireshark questions. You should post them to the right forum, which in this case is tcpdump-workers () lists tcpdump org. Thanks, Jaap On Fri, 5 Mar 2010 10:15:29 +0200, Selçuk Cevher <cevhers () gmail com> wrote:
Hi All, I wrote a small program which calls pcap_next_ex() function to read packets while processing a bunch of PCAP files (offline mode) "sequentially" - one after another. However, pcap_next_ex() generates a segmentation fault (I observed this using GNU gdb). By the way, my program also produces some user logs so that I have the opportunity to observe which PCAP file is being processed at a certain time. On the other hand, when I re-run the same program with the individual PCAP file as the only program input, which I observed in the user logs that pcap_next_ex() generated segfault in the previous run while the
file
was being processed, I observe no crash. Hence, I began to think that there is problem with pcap_next_ex() in terms of memory leak, etc which becomes apparent when it is called successively for a bunch of PCAP files, not for a single file. Questions: 1. Is there such a pcap_next_ex() behaviour reported before ? 2. If you think, this is impossible, what might I be doing wrong ? 3. Should I use some other function other than pcap_next_ex() ? etc. I use Ubuntu 9.10 (64-bit). libpcap version is 1.0.0-2ubuntu1 Thanks.
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Current thread:
- pcap_next_ex() crashes Selçuk Cevher (Mar 05)
- Re: pcap_next_ex() crashes Jaap Keuter (Mar 05)