freebsd-dev/contrib/libpcap/pcap_stats.3pcap
2009-03-21 22:58:08 +00:00

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.\" @(#) $Header: /tcpdump/master/libpcap/pcap_stats.3pcap,v 1.1.2.3 2008-04-06 03:21:56 guy Exp $
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.TH PCAP_SNAPSHOT 3PCAP "5 April 2008"
.SH NAME
pcap_stats \- get capture statistics
.SH SYNOPSIS
.nf
.ft B
#include <pcap/pcap.h>
.ft
.LP
.ft B
int pcap_stats(pcap_t *p, struct pcap_stat *ps);
.ft
.fi
.SH DESCRIPTION
.B pcap_stats()
fills in the
.I pcap_stat
structure pointed to by its second argument. The values represent
packet statistics from the start of the run to the time of the call.
.PP
.B pcap_stats()
is supported only on live captures, not on ``savefiles''; no statistics
are stored in ``savefiles'', so no statistics are available when reading
from a ``savefile''.
.SH RETURN VALUE
.B pcap_stats()
returns 0 on success and returns \-1 if there is an error or the
.I p
doesn't support packet statistics.
If \-1 is returned,
.B pcap_geterr()
or
.B pcap_perror()
may be called with
.I p
as an argument to fetch or display the error text.
.SH SEE ALSO
pcap(3PCAP), pcap_geterr(3PCAP)