pcap_setfilter(3) - NetBSD Manual Pages

Command: Section: Arch: Collection:  
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) 7 April 2014 PCAP_SETFILTER(3)
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