pcap_fileno(3pcap) — Linux manual page
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(3PCAP) and
pcap_activate(3PCAP), or using pcap_open_live(3PCAP),
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(3PCAP) or pcap_fopen_offline(3PCAP), a
``dead'' pcap_t opened using pcap_open_dead(3PCAP), or a pcap_t
that was created with pcap_create() but that has not yet been
activated with pcap_activate(), it returns PCAP_ERROR.
SEE ALSO
pcap(3PCAP)
COLOPHON
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 2024-06-14.
(At that time, the date of the most recent commit that was found
in the repository was 2024-06-04.) If you discover any rendering
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