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 using a combination of
       pcap_create(3PCAP) and pcap_activate(3PCAP), or using pcap_open_live(3PCAP), 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(3PCAP) or pcap_fopen_offline(3PCAP),  a  ``dead''  pcap_t  opened  using
       pcap_open_dead(3PCAP),  or  a  pcap_t that was created with pcap_create() but that has not
       yet been activated with pcap_activate(), it returns PCAP_ERROR.

SEE ALSO

       pcap(3PCAP)

                                           25 July 2018                        PCAP_FILENO(3PCAP)