pcap_offline_filter (3)

Leading comments

 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...

(The comments found at the beginning of the groff file "man3/pcap_offline_filter.3pcap".)

NAME

pcap_offline_filter - check whether a filter matches a packet

SYNOPSIS

#include <pcap/pcap.h>

int pcap_offline_filter(const struct bpf_program *fp,


        const struct pcap_pkthdr *h, const u_char *pkt)

DESCRIPTION

pcap_offline_filter() checks whether a filter matches a packet. fp is a pointer to a bpf_program struct, usually the result of a call to pcap_compile(). h points to the pcap_pkthdr structure for the packet, and pkt points to the data in the packet.

RETURN VALUE

pcap_offline_filter() returns the return value of the filter program. This will be zero if the packet doesn't match the filter and non-zero if the packet matches the filter.

SEE ALSO

pcap(3PCAP), pcap_compile(3PCAP)