1PCAP_FILENO(3PCAP)                                          PCAP_FILENO(3PCAP)
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NAME

6       pcap_fileno - get the file descriptor for a live capture
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SYNOPSIS

9       #include <pcap/pcap.h>
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11       int pcap_fileno(pcap_t *p);
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DESCRIPTION

14       If  p  refers  to  a  network device that was opened for a live capture
15       using a combination of  pcap_create()  and  pcap_activate(),  or  using
16       pcap_open_live(),  pcap_fileno() returns the file descriptor from which
17       captured packets are read.
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19       If p refers to a ``savefile'' that was opened using  fuctions  such  as
20       pcap_open_offline()  or  pcap_fopen_offline(), a ``dead'' pcap_t opened
21       using pcap_open_dead(), or a pcap_t that was created with pcap_create()
22       but  that  has  not yet been activated with pcap_activate(), it returns
23       -1.
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SEE ALSO

26       pcap(3PCAP),         pcap_create(3PCAP),          pcap_activate(3PCAP),
27       pcap_open_live(3PCAP),     pcap_open_offline(3PCAP),    pcap_fopen_off‐
28       line(3PCAP), pcap_open_dead(3PCAP)
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32                                 5 April 2008               PCAP_FILENO(3PCAP)
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