NAME
pcap_fileno - get the file descriptor for a live capture
SYNOPSIS
#include <pcap/pcap.h>
int pcap_fileno(pcap_t *p);
DESCRIPTION
pcap_fileno() returns the file descriptor number from which captured packets are read, if a network device was opened with pcap_create() and pcap_activate() or with pcap_open_live(), or -1, if a ‘‘savefile’’ was opened with pcap_open_offline().
