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Local changes: - In contrib/libpcap/pcap/bpf.h, do not include pcap/dlt.h. Our system net/dlt.h is pulled in from net/bpf.h. - sys/net/dlt.h: Incorporate changes from libpcap 1.10.3. - lib/libpcap/Makefile: Update for libpcap 1.10.3. Changelog: https://git.tcpdump.org/libpcap/blob/95691ebe7564afa3faa5c6ba0dbd17e351be455a:/CHANGES Reviewed by: emaste Obtained from: https://www.tcpdump.org/release/libpcap-1.10.3.tar.gz Sponsored by: The FreeBSD Foundation
66 lines
2 KiB
Plaintext
66 lines
2 KiB
Plaintext
.\" Copyright (c) 1994, 1996, 1997
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that: (1) source code distributions
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.\" retain the above copyright notice and this paragraph in its entirety, (2)
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.\" distributions including binary code include the above copyright notice and
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.\" this paragraph in its entirety in the documentation or other materials
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.\" provided with the distribution, and (3) all advertising materials mentioning
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.\" features or use of this software display the following acknowledgement:
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.\" ``This product includes software developed by the University of California,
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.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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.\" the University nor the names of its contributors may be used to endorse
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.\" or promote products derived from this software without specific prior
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.\" written permission.
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.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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.\"
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.TH PCAP_FILENO 3PCAP "25 July 2018"
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.SH NAME
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pcap_fileno \- get the file descriptor for a live capture
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.SH SYNOPSIS
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.nf
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.ft B
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#include <pcap/pcap.h>
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.ft
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.LP
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.ft B
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int pcap_fileno(pcap_t *p);
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.ft
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.fi
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.SH DESCRIPTION
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If
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.I p
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refers to a network device that was opened for a live capture using
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a combination of
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.BR pcap_create (3PCAP)
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and
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.BR pcap_activate (3PCAP),
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or using
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.BR pcap_open_live (3PCAP),
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.BR pcap_fileno ()
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returns the file descriptor from which captured packets are read.
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.LP
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If
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.I p
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refers to a ``savefile'' that was opened using functions such as
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.BR pcap_open_offline (3PCAP)
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or
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.BR pcap_fopen_offline (3PCAP),
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a ``dead''
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.B pcap_t
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opened using
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.BR pcap_open_dead (3PCAP),
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or a
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.B pcap_t
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that was created with
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.BR pcap_create ()
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but that has not yet been activated with
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.BR pcap_activate (),
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it returns
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.BR PCAP_ERROR .
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.SH SEE ALSO
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.BR pcap (3PCAP)
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