@(#) $Header: /tcpdump/master/libpcap/pcap_open_offline.3pcap.in,v 1.1 2008-10-23 05:56:59 guy Exp $
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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_OPEN_OFFLINE 3PCAP "5 April 2008"
NAME
pcap_open_offline, pcap_fopen_offline - open a saved capture file for reading
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];pcap_t *pcap_open_offline(const char *fname, char *errbuf); pcap_t *pcap_fopen_offline(FILE *fp, char *errbuf);
DESCRIPTIONpcap_open_offline() is called to open a ``savefile'' for reading.fname specifies the name of the file to open. The file can have the pcap file format as described in pcap-savefile (@MAN_FILE_FORMATS@), which is the file format used by, among other programs, tcpdump (1) and tcpslice (1), or can have the pcap-ng file format, although not all pcap-ng files can be read. The name "-" in a synonym for stdin .
Alternatively, you may call pcap_fopen_offline() to read dumped data from an existing open stream fp . Note that on Windows, that stream should be opened in binary mode.
RETURN VALUEpcap_open_offline() and pcap_fopen_offline() return a pcap_t * on success and NULL on failure. If NULL is returned, errbuf is filled in with an appropriate error message. errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.SEE ALSOpcap(3PCAP), pcap-savefile(@MAN_FILE_FORMATS@)