freebsd-src/contrib/libpcap/pcap_snapshot.3pcap
Joseph Mingrone 6f9cba8f8b
libpcap: Update to 1.10.3
Local changes:

- In contrib/libpcap/pcap/bpf.h, do not include pcap/dlt.h.  Our system
  net/dlt.h is pulled in from net/bpf.h.
- sys/net/dlt.h: Incorporate changes from libpcap 1.10.3.
- lib/libpcap/Makefile: Update for libpcap 1.10.3.

Changelog:	https://git.tcpdump.org/libpcap/blob/95691ebe7564afa3faa5c6ba0dbd17e351be455a:/CHANGES
Reviewed by:	emaste
Obtained from:	https://www.tcpdump.org/release/libpcap-1.10.3.tar.gz
Sponsored by:	The FreeBSD Foundation
2023-03-31 16:02:22 -03:00

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.\" Copyright (c) 1994, 1996, 1997
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.TH PCAP_SNAPSHOT 3PCAP "7 April 2014"
.SH NAME
pcap_snapshot \- get the snapshot length
.SH SYNOPSIS
.nf
.ft B
#include <pcap/pcap.h>
.ft
.LP
.ft B
int pcap_snapshot(pcap_t *p);
.ft
.fi
.SH DESCRIPTION
.BR pcap_snapshot ()
returns the snapshot length specified when
.BR pcap_set_snaplen (3PCAP)
or
.BR pcap_open_live (3PCAP)
was called, for a live capture, or the snapshot length from the capture
file, for a ``savefile''.
.PP
It must not be called on a pcap descriptor created by
.BR \%pcap_create (3PCAP)
that has not yet been activated by
.BR \%pcap_activate (3PCAP).
.SH RETURN VALUE
.BR pcap_snapshot ()
returns the snapshot length on success and
.B PCAP_ERROR_NOT_ACTIVATED
if called on a capture handle that has been created but not activated.
.SH SEE ALSO
.BR pcap (3PCAP)