pcap_setfilter(3PCAP) man page

Updated: 25 July 2018
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This man page documents libpcap version 1.9.1 (see also: git master branch, 1.10.1, 1.10.0, 1.9.0, 1.8.1, 1.7.4, 1.6.2, 1.5.3).

Your system may have a different version installed, possibly with some local modifications. To achieve the best results, please make sure this version of this man page suits your needs. If necessary, try to look for a different version on this web site or in the man pages available in your installation.

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_compile(3PCAP).

RETURN VALUE

pcap_setfilter() returns 0 on success and PCAP_ERROR on failure. If PCAP_ERROR is returned, pcap_geterr(3PCAP) or pcap_perror(3PCAP) may be called with p as an argument to fetch or display the error text.

SEE ALSO

pcap(3PCAP)


COLOPHON

This HTML man page was generated at 10:40:22 GMT, October 05, 2021 from a source man page in "The Tcpdump Group" git repositories using man2html and other tools.