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authorguy <guy>2008-04-05 20:19:41 +0000
committerguy <guy>2008-04-05 20:19:41 +0000
commitbaadfaab07e6807d3fd776032707bcd6ee909788 (patch)
treefc0f97e8278629207ee87a607751ebace2ee6cf5 /pcap_lookupnet.3pcap
parentb043aa85c0191b9cb14adb733bca6eedf60bb943 (diff)
Split the pcap(3) man page into a bunch of individual man pages for
functions plus an overall man page for libpcap, and put them all into section 3PCAP. That means you can actually do "man pcap_open_live" and get something meaningful, rather than having to do "man pcap" and then scroll through all the other stuff in the man page.
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+.\" @(#) $Header: /tcpdump/master/libpcap/pcap_lookupnet.3pcap,v 1.1 2008-04-05 20:19:42 guy Exp $
+.\"
+.\" Copyright (c) 1994, 1996, 1997
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that: (1) source code distributions
+.\" retain the above copyright notice and this paragraph in its entirety, (2)
+.\" distributions including binary code include the above copyright notice and
+.\" this paragraph in its entirety in the documentation or other materials
+.\" provided with the distribution, and (3) all advertising materials mentioning
+.\" features or use of this software display the following acknowledgement:
+.\" ``This product includes software developed by the University of California,
+.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+.\" the University nor the names of its contributors may be used to endorse
+.\" or promote products derived from this software without specific prior
+.\" written permission.
+.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+.\"
+.TH PCAP_LOOKUPNET 3PCAP "4 April 2008"
+.SH NAME
+pcap_lookupnet \- find the IPv4 network number and netmask for a device
+.SH SYNOPSIS
+.nf
+.ft B
+#include <pcap.h>
+.ft
+.LP
+.nf
+.ft B
+char errbuf[PCAP_ERRBUF_SIZE];
+.ft
+.LP
+.ft B
+int pcap_lookupnet(const char *device, bpf_u_int32 *netp,
+.ti +8
+bpf_u_int32 *maskp, char *errbuf);
+.ft
+.fi
+.SH DESCRIPTION
+.B pcap_lookupnet()
+is used to determine the IPv4 network number and mask
+associated with the network device
+.IR device .
+Both
+.I netp
+and
+.I maskp
+are
+.I bpf_u_int32
+pointers.
+.SH RETURN VALUE
+.B pcap_lookupnet()
+returns 0 on success and \-1 on failure.
+If \-1 is returned,
+.I errbuf
+is filled in with an appropriate error message.
+.I errbuf
+is assumed to be able to hold at least
+.B PCAP_ERRBUF_SIZE
+chars.