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/* file.c
*
* $Id: file.c,v 1.9 1999/03/01 18:57:04 gram Exp $
*
* Wiretap Library
* Copyright (c) 1998 by Gilbert Ramirez <gram@verdict.uthscsa.edu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "wtap.h"
#include "buffer.h"
#include "lanalyzer.h"
#include "ngsniffer.h"
#include "libpcap.h"
#include "snoop.h"
#include "iptrace.h"
#include "netmon.h"
#include "netxray.h"
/* The open_file_* routines should return the WTAP_FILE_* type
* that they are checking for if the file is successfully recognized
* as such. If the file is not of that type, the routine should return
* WTAP_FILE_UNKNOWN */
/* Opens a file and prepares a wtap struct */
wtap* wtap_open_offline(char *filename)
{
wtap *wth;
wth = (wtap*)malloc(sizeof(wtap));
/* Open the file */
if (!(wth->fh = fopen(filename, "rb"))) {
return NULL;
}
/* initialization */
wth->file_encap = WTAP_ENCAP_NONE;
wth->filter.offline = NULL;
wth->filter_type = WTAP_FILTER_NONE;
wth->filter_length = 0;
wth->offline_filter_lengths = NULL;
/* Try all file types */
/* WTAP_FILE_PCAP */
if ((wth->file_type = libpcap_open(wth)) != WTAP_FILE_UNKNOWN) {
goto success;
}
/* WTAP_FILE_NGSNIFFER */
if ((wth->file_type = ngsniffer_open(wth)) != WTAP_FILE_UNKNOWN) {
goto success;
}
/* WTAP_FILE_LANALYZER */
if ((wth->file_type = lanalyzer_open(wth)) != WTAP_FILE_UNKNOWN) {
goto success;
}
/* WTAP_FILE_SNOOP */
if ((wth->file_type = snoop_open(wth)) != WTAP_FILE_UNKNOWN) {
goto success;
}
/* WTAP_FILE_IPTRACE */
if ((wth->file_type = iptrace_open(wth)) != WTAP_FILE_UNKNOWN) {
goto success;
}
/* WTAP_FILE_NETMON */
if ((wth->file_type = netmon_open(wth)) != WTAP_FILE_UNKNOWN) {
goto success;
}
/* WTAP_FILE_NETXRAY */
if ((wth->file_type = netxray_open(wth)) != WTAP_FILE_UNKNOWN) {
goto success;
}
/* failure: */
fclose(wth->fh);
free(wth);
wth = NULL;
return wth;
success:
wth->frame_buffer = g_malloc(sizeof(struct Buffer));
buffer_init(wth->frame_buffer, 1500);
return wth;
}
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