diff options
Diffstat (limited to 'pcap_loop.3pcap')
| -rw-r--r-- | pcap_loop.3pcap | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/pcap_loop.3pcap b/pcap_loop.3pcap index d18dc06c28b8..0eaf6e5e598c 100644 --- a/pcap_loop.3pcap +++ b/pcap_loop.3pcap @@ -17,7 +17,7 @@ .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. .\" -.TH PCAP_LOOP 3PCAP "13 October 2013" +.TH PCAP_LOOP 3PCAP "18 October 2014" .SH NAME pcap_loop, pcap_dispatch \- process packets from a live capture or savefile .SH SYNOPSIS @@ -77,6 +77,13 @@ causes all the packets received in one buffer to be processed when reading a live capture, and causes all the packets in the file to be processed when reading a ``savefile''. .PP +Note that, when doing a live capture on some platforms, if the read +timeout expires when there are no packets available, +.B pcap_dispatch() +will return 0, even when not in non-blocking mode, as there are no +packets to process. Applications should be prepared for this to happen, +but must not rely on it happening. +.PP .ft B (In older versions of libpcap, the behavior when \fIcnt\fP |