66 lines
2.0 KiB
Plaintext
66 lines
2.0 KiB
Plaintext
.\" Copyright (c) 1994, 1996, 1997
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that: (1) source code distributions
|
|
.\" retain the above copyright notice and this paragraph in its entirety, (2)
|
|
.\" distributions including binary code include the above copyright notice and
|
|
.\" this paragraph in its entirety in the documentation or other materials
|
|
.\" provided with the distribution, and (3) all advertising materials mentioning
|
|
.\" features or use of this software display the following acknowledgement:
|
|
.\" ``This product includes software developed by the University of California,
|
|
.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
|
|
.\" the University nor the names of its contributors may be used to endorse
|
|
.\" or promote products derived from this software without specific prior
|
|
.\" written permission.
|
|
.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
|
|
.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
|
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
.\"
|
|
.TH PCAP_FILENO 3PCAP "25 July 2018"
|
|
.SH NAME
|
|
pcap_fileno \- get the file descriptor for a live capture
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.ft B
|
|
#include <pcap/pcap.h>
|
|
.ft
|
|
.LP
|
|
.ft B
|
|
int pcap_fileno(pcap_t *p);
|
|
.ft
|
|
.fi
|
|
.SH DESCRIPTION
|
|
If
|
|
.I p
|
|
refers to a network device that was opened for a live capture using
|
|
a combination of
|
|
.B pcap_create(3PCAP)
|
|
and
|
|
.BR pcap_activate(3PCAP) ,
|
|
or using
|
|
.BR pcap_open_live(3PCAP) ,
|
|
.B pcap_fileno()
|
|
returns the file descriptor from which captured packets are read.
|
|
.LP
|
|
If
|
|
.I p
|
|
refers to a ``savefile'' that was opened using functions such as
|
|
.BR pcap_open_offline(3PCAP)
|
|
or
|
|
.BR pcap_fopen_offline(3PCAP) ,
|
|
a ``dead''
|
|
.B pcap_t
|
|
opened using
|
|
.BR pcap_open_dead(3PCAP) ,
|
|
or a
|
|
.B pcap_t
|
|
that was created with
|
|
.B pcap_create()
|
|
but that has not yet been activated with
|
|
.BR pcap_activate() ,
|
|
it returns
|
|
.BR PCAP_ERROR .
|
|
.SH SEE ALSO
|
|
pcap(3PCAP)
|