cfile.c

   1 /* cfile.c
   2  * capture_file GUI-independent manipulation
   3  * Vassilii Khachaturov <vassilii@tarunz.org>
   4  *
   5  * $Id$
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25
  26 #include "config.h"
  27
  28 #include <glib.h>
  29
  30 #include <epan/packet.h>
  31
  32 #include "cfile.h"
  33
  34 const char *
  35 cap_file_get_interface_name(void *data, guint32 interface_id)
  36 {
  37   capture_file *cf = (capture_file *) data;
  38   wtapng_iface_descriptions_t *idb_info;
  39   const wtapng_if_descr_t *wtapng_if_descr = NULL;
  40
  41   idb_info = wtap_file_get_idb_info(cf->wth);
  42
  43   if (interface_id < idb_info->number_of_interfaces)
  44     wtapng_if_descr = &g_array_index(idb_info->interface_data, wtapng_if_descr_t, interface_id);
  45
  46   g_free(idb_info);
  47
  48   if (wtapng_if_descr) {
  49     if (wtapng_if_descr->if_name)
  50       return wtapng_if_descr->if_name;
  51     else if (wtapng_if_descr->if_description)
  52       return wtapng_if_descr->if_description;
  53   }
  54   return "unknown";
  55 }
  56
  57 void
  58 cap_file_init(capture_file *cf)
  59 {
  60   /* Initialize the capture file struct */
  61   memset(cf, 0, sizeof(capture_file));
  62   cf->snap            = WTAP_MAX_PACKET_SIZE;
  63 }