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/* wtap.c
*
* $Id: wtap.c,v 1.12 1999/08/02 02:04:38 guy 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.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "wtap.h"
#include "buffer.h"
FILE* wtap_file(wtap *wth)
{
return wth->fh;
}
int wtap_file_type(wtap *wth)
{
return wth->file_type;
}
int wtap_snapshot_length(wtap *wth)
{
return wth->snapshot_length;
}
const char *wtap_file_type_string(wtap *wth)
{
switch (wth->file_type) {
case WTAP_FILE_WTAP:
return "wiretap";
case WTAP_FILE_PCAP:
return "pcap";
case WTAP_FILE_LANALYZER:
return "Novell LANalyzer";
case WTAP_FILE_NGSNIFFER:
return "Network Associates Sniffer (DOS-based)";
case WTAP_FILE_SNOOP:
return "snoop";
case WTAP_FILE_IPTRACE:
return "iptrace";
case WTAP_FILE_NETMON:
return "Microsoft Network Monitor";
case WTAP_FILE_NETXRAY:
return "Cinco Networks NetXRay/Network Associates Sniffer (Windows-based)";
case WTAP_FILE_RADCOM:
return "RADCOM WAN/LAN analyzer";
default:
g_error("Unknown capture file type %d", wth->file_type);
return NULL;
}
}
void wtap_close(wtap *wth)
{
/* free up memory. If any capture structure ever allocates
* its own memory, it would be better to make a *close() function
* for each filetype, like pcap_close(0, lanalyzer_close(), etc.
* But for now this will work. */
switch(wth->file_type) {
case WTAP_FILE_PCAP:
g_free(wth->capture.pcap);
break;
case WTAP_FILE_LANALYZER:
g_free(wth->capture.lanalyzer);
break;
case WTAP_FILE_NGSNIFFER:
g_free(wth->capture.ngsniffer);
break;
case WTAP_FILE_NETMON:
g_free(wth->capture.netmon);
break;
/* default:
nothing */
}
fclose(wth->fh);
}
void wtap_loop(wtap *wth, int count, wtap_handler callback, u_char* user)
{
int data_offset, loop = 0;
while ((data_offset = wth->subtype_read(wth)) > 0) {
callback(user, &wth->phdr, data_offset,
buffer_start_ptr(wth->frame_buffer));
if (count > 0 && ++loop >= count) break;
}
}
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