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NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON |
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PCAP_FILENO(3PCAP) PCAP_FILENO(3PCAP)
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 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.
pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP),
pcap_open_live(3PCAP), pcap_open_offline(3PCAP),
pcap_fopen_offline(3PCAP), pcap_open_dead(3PCAP)
This page is part of the libpcap (packet capture library) project.
Information about the project can be found at
⟨http://www.tcpdump.org/⟩. If you have a bug report for this manual
page, see ⟨http://www.tcpdump.org/#patches⟩. This page was obtained
from the project's upstream Git repository
⟨https://github.com/the-tcpdump-group/libpcap.git⟩ on 2018-02-02.
(At that time, the date of the most recent commit that was found in
the repository was 2018-01-31.) If you discover any rendering prob‐
lems in this HTML version of the page, or you believe there is a bet‐
ter or more up-to-date source for the page, or you have corrections
or improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to man-pages@man7.org
7 April 2014 PCAP_FILENO(3PCAP)
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