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() and pcap_activate(), or using pcap_open_live(),  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()
       or pcap_fopen_offline(), a ``dead'' pcap_t opened using pcap_open_dead(), or a pcap_t that
       was  created  with pcap_create() but that has not yet been activated with pcap_activate(),
       it returns -1.

SEE ALSO

       pcap(3PCAP),     pcap_create(3PCAP),     pcap_activate(3PCAP),      pcap_open_live(3PCAP),
       pcap_open_offline(3PCAP), pcap_fopen_offline(3PCAP), pcap_open_dead(3PCAP)

                                         3 November 2009                       PCAP_FILENO(3PCAP)