tcpdump mailing list archives
Re: Multiple call to pcap_open_live
From: Benjamin Vanheuverzwijn <bvanheu () gmail com>
Date: Mon, 18 Nov 2013 17:06:47 -0500
On Mon, Nov 18, 2013 at 4:22 PM, Guy Harris <guy () alum mit edu> wrote:
On Nov 17, 2013, at 9:38 PM, Benjamin Vanheuverzwijn <bvanheu () gmail com> wrote:libpcap version: 1.4.0 (on archlinux) Is it possible to have multiple call to "pcap_open_live()" followed by pcap_close() ?Yes, modulo bugs in libpcap or libraries it uses.It seems like pcap_close() doesn't cleanly close opened resources, if you strace the following program, you will see file descriptors growing up.Bug in the "support on Linux for USB-attached CANbus devices" code; fixed in the libpcap trunk, and will be fixed in the 1.5 release when it comes out.
I've just tested against libpcap commit 11031d0f71387161c282248cddc2fa0f7bf014ce (Mon Nov 11 11:21:43 2013 -0800) that i got from here https://github.com/the-tcpdump-group/libpcap.gitand the problem still exists. I'm still not sure if the problem comes from my distro or the libpcap code. If you can't reproduce i would say that the problem comes from my distro, but i'm not sure where to look. -- Benjamin Vanheuverzwijn _______________________________________________ tcpdump-workers mailing list tcpdump-workers () lists tcpdump org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
Current thread:
- Multiple call to pcap_open_live Benjamin Vanheuverzwijn (Nov 17)
- Re: Multiple call to pcap_open_live Michal Sekletar (Nov 18)
- Re: Multiple call to pcap_open_live Benjamin Vanheuverzwijn (Nov 18)
- Re: Multiple call to pcap_open_live Benjamin Vanheuverzwijn (Nov 18)
- Re: Multiple call to pcap_open_live Benjamin Vanheuverzwijn (Nov 18)
- Re: Multiple call to pcap_open_live Guy Harris (Nov 18)
- Re: Multiple call to pcap_open_live Benjamin Vanheuverzwijn (Nov 18)
- Re: Multiple call to pcap_open_live Guy Harris (Nov 18)
- Re: Multiple call to pcap_open_live Benjamin Vanheuverzwijn (Nov 18)
- Re: Multiple call to pcap_open_live Benjamin Vanheuverzwijn (Nov 18)
- Re: Multiple call to pcap_open_live Michal Sekletar (Nov 18)