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Command: pcap_fileno | Section: 3 | Source: FreeBSD | File: pcap_fileno.3.gz
PCAP_FILENO(3) Library Functions Manual PCAP_FILENO(3)
NAME
pcap_fileno - get the file descriptor for a live capture
SYNOPSIS
#include <pcap/pcap.h>
int pcap_fileno(pcap_t *p);
DESCRIPTION
If p refers to a network device that was opened for a live capture us-
ing a combination of pcap_create(3) and pcap_activate(3), or using
pcap_open_live(3), pcap_fileno() returns the file descriptor from which
captured packets are read.
If p refers to a ``savefile'' that was opened using functions such as
pcap_open_offline(3) or pcap_fopen_offline(3), a ``dead'' pcap_t opened
using pcap_open_dead(3), or a pcap_t that was created with pcap_cre-
ate() but that has not yet been activated with pcap_activate(), it re-
turns PCAP_ERROR.
SEE ALSO
pcap(3)
25 July 2018 PCAP_FILENO(3)