Man page of PCAP_SETFILTER

Section: Misc. Reference Manual Pages (3PCAP)
Updated: 25 July 2018
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This man page documents libpcap version 1.11.0-PRE-GIT.

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)


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