pcap_setfilter man page on PC-BSD
[printable version]
PCAP_SETFILTER(3) PCAP_SETFILTER(3)
NAME
pcap_setfilter - set the filter
SYNOPSIS
#include <pcap/pcap.h>
int pcap_setfilter(pcap_t *p, struct bpf_program *fp);
DESCRIPTION
pcap_setfilter() is used to specify a filter program. fp is a pointer
to a bpf_program struct, usually the result of a call to pcap_com‐
pile().
RETURN VALUE
pcap_setfilter() returns 0 on success and -1 on failure. If -1 is
returned, pcap_geterr() or pcap_perror() may be called with p as an
argument to fetch or display the error text.
SEE ALSO
pcap(3), pcap_compile(3), pcap_geterr(3)
5 April 2008 PCAP_SETFILTER(3)
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