xref: /freebsd/contrib/libpcap/pcap_file.3pcap (revision 783d3ff6d7fae619db8a7990b8a6387de0c677b5)
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.

PCAP_FILE 3PCAP "3 January 2014"
NAME
pcap_file - get the standard I/O stream for a savefile being read
SYNOPSIS
#include <pcap/pcap.h>

FILE *pcap_file(pcap_t *p);

DESCRIPTION
pcap_file () returns the standard I/O stream of the ``savefile,'' if a ``savefile'' was opened with pcap_open_offline (3PCAP), or NULL , if a network device was opened with pcap_create (3PCAP) and \%pcap_activate (3PCAP), or with pcap_open_live (3PCAP).

Note that the Packet Capture library is usually built with large file support, so the standard I/O stream of the ``savefile'' might refer to a file larger than 2 gigabytes; applications that use pcap_file () should, if possible, use calls that support large files on the return value of pcap_file () or the value returned by fileno (3) when passed the return value of pcap_file ().

SEE ALSO
pcap (3PCAP)