pcap_fileno man page on Slackware

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PCAP_FILENO(3PCAP)					    PCAP_FILENO(3PCAP)

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_off‐
       line(3PCAP), pcap_open_dead(3PCAP)

				 5 April 2008		    PCAP_FILENO(3PCAP)
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