forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
are imported correctly from libethereal.dll when compiling with MSVC. svn path=/trunk/; revision=11516
166 lines
4 KiB
C
166 lines
4 KiB
C
/* capture_combo_utils.c
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* Utilities for combo box of interface names
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* With MSVC and a libethereal.dll this file needs to import some variables
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in a special way. Therefore _NEED_VAR_IMPORT_ is defined. */
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#define _NEED_VAR_IMPORT_
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_LIBPCAP
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#include <pcap.h>
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#include <string.h>
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#include <glib.h>
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#include "prefs.h"
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#include "pcap-util.h"
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#include "capture_combo_utils.h"
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/*
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* Find capture device description that matches interface name.
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*/
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static char *
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capture_dev_descr_find(const gchar *if_name)
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{
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char *p;
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char *p2 = NULL;
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char *descr = NULL;
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int lp = 0;
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int ct = 0;
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if (prefs.capture_devices_descr == NULL) {
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/* There are no descriptions. */
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return NULL;
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}
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if ((p = strstr(prefs.capture_devices_descr, if_name)) == NULL) {
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/* There are, but there isn't one for this interface. */
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return NULL;
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}
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while (*p != '\0') {
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/* error: ran into next interface description */
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if (*p == ',')
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return NULL;
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/* found left parenthesis, start of description */
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else if (*p == '(') {
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ct = 0;
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lp++;
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/* skip over left parenthesis */
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p++;
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/* save pointer to beginning of description */
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p2 = p;
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continue;
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}
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else if (*p == ')') {
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/* end of description */
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break;
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}
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else {
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p++;
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ct++;
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}
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}
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if ((lp == 1) && (ct > 0) && (p2 != NULL)) {
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/* Allocate enough space to return the string,
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which runs from p2 to p, plus a terminating
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'\0'. */
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descr = g_malloc(p - p2 + 1);
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memcpy(descr, p2, p - p2);
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descr[p - p2] = '\0';
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return descr;
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}
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else
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return NULL;
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}
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GList *
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build_capture_combo_list(GList *if_list, gboolean do_hide)
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{
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GList *combo_list;
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GList *if_entry;
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if_info_t *if_info;
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char *if_string;
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gchar *descr;
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combo_list = NULL;
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if (if_list != NULL) {
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/* Scan through the list and build a list of strings to display. */
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for (if_entry = if_list; if_entry != NULL;
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if_entry = g_list_next(if_entry)) {
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if_info = if_entry->data;
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/* Is this interface hidden and, if so, should we include it
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anyway? */
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if (prefs.capture_devices_hide == NULL ||
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strstr(prefs.capture_devices_hide, if_info->name) == NULL ||
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!do_hide) {
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/* It's not hidden, or it is but we should include it in the list. */
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/* Do we have a user-supplied description? */
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descr = capture_dev_descr_find(if_info->name);
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if (descr != NULL) {
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/* Yes, we have a user-supplied description; use it. */
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if_string = g_strdup_printf("%s: %s", descr, if_info->name);
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g_free(descr);
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} else {
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/* No, we don't have a user-supplied description; did we get
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one from the OS or libpcap? */
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if (if_info->description != NULL) {
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/* Yes - use it. */
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if_string = g_strdup_printf("%s: %s", if_info->description,
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if_info->name);
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} else {
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/* No. */
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if_string = g_strdup(if_info->name);
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}
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}
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combo_list = g_list_append(combo_list, if_string);
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}
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}
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}
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return combo_list;
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}
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static void
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free_if_string(gpointer data, gpointer user_data _U_)
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{
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g_free(data);
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}
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void
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free_capture_combo_list(GList *combo_list)
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{
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if (combo_list != NULL) {
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g_list_foreach(combo_list, free_if_string, NULL);
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g_list_free(combo_list);
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}
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}
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#endif /* HAVE_LIBPCAP */
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