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NetBSD 6.1.5 - man page for pcap_fileno (netbsd section 3)

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PCAP_FILENO(3)									   PCAP_FILENO(3)

       pcap_fileno - get the file descriptor for a live capture

       #include <pcap/pcap.h>

       int pcap_fileno(pcap_t *p);

       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 fuctions 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.

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

					   5 April 2008 			   PCAP_FILENO(3)
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