Linux cli command pcap_setfilterpcap

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command pcap_setfilterpcap and provides detailed information about the command pcap_setfilterpcap, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the pcap_setfilterpcap.

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NAME 🖥️ pcap_setfilterpcap 🖥️

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, PCAP_ERROR_NOT_ACTIVATED if called on a capture handle that has been created but not activated, or PCAP_ERROR on other errors. 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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