diff options
| author | guy <guy> | 2008-04-06 02:53:21 +0000 |
|---|---|---|
| committer | guy <guy> | 2008-04-06 02:53:21 +0000 |
| commit | f84d077e075d7e976be9d2334bf0f68e83cb95a5 (patch) | |
| tree | e797f3fa543b282be3ce1b7c598c4df1905cecc4 /pcap_get_selectable_fd.3pcap | |
| parent | 37340171346a8f9cf4cbec922b27683f282a9e26 (diff) | |
Document the new API's, move a bunch of information about libpcap
concepts to the pcap(3PCAP) man page, refer people to the pcap(3PCAP)
man page from the man pages for libpcap functions, and clean up some
errors.
Diffstat (limited to 'pcap_get_selectable_fd.3pcap')
| -rw-r--r-- | pcap_get_selectable_fd.3pcap | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/pcap_get_selectable_fd.3pcap b/pcap_get_selectable_fd.3pcap index 38e841ef..6cc4aa19 100644 --- a/pcap_get_selectable_fd.3pcap +++ b/pcap_get_selectable_fd.3pcap @@ -1,4 +1,4 @@ -.\" @(#) $Header: /tcpdump/master/libpcap/pcap_get_selectable_fd.3pcap,v 1.2 2008-04-05 20:26:56 guy Exp $ +.\" @(#) $Header: /tcpdump/master/libpcap/pcap_get_selectable_fd.3pcap,v 1.3 2008-04-06 02:53:22 guy Exp $ .\" .\" Copyright (c) 1994, 1996, 1997 .\" The Regents of the University of California. All rights reserved. @@ -19,7 +19,7 @@ .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. .\" -.TH PCAP_GET_SELECTABLE_FD 3PCAP "4 April 2008" +.TH PCAP_GET_SELECTABLE_FD 3PCAP "5 April 2008" .SH NAME pcap_get_selectable_fd \- get a file descriptor on which a select() can be done for a live capture @@ -44,7 +44,11 @@ or to wait for it to be possible to read packets without blocking, if such a descriptor exists, or \-1, if no such descriptor exists. Some network devices opened with -.B pcap_open_live() +.B pcap_create() +and +.BR pcap_activate() , +or with +.BR pcap_open_live() , do not support .B select() or @@ -63,9 +67,8 @@ being FreeBSD 4.3 and 4.4), a simple .B select() or .B poll() -will not return even after a timeout specified in -.B pcap_open_live() -expires. To work around this, an application that uses +will not return even after the read timeout expires. To work around +this, an application that uses .B select() or .B poll() @@ -75,8 +78,7 @@ in non-blocking mode, and must arrange that the .B select() or .B poll() -have a timeout less than or equal to the timeout specified in -.BR pcap_open_live() , +have a timeout less than or equal to the read timeout, and must try to read packets after that timeout expires, regardless of whether .B select() @@ -109,4 +111,4 @@ is not available on Windows. A selectable file descriptor is returned if one exists; otherwise, \-1 is returned. .SH SEE ALSO -select(2), poll(2) +pcap(3PCAP), select(2), poll(2) |