*
* $Id$
*
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-/* With MSVC and a libethereal.dll this file needs to import some variables
- in a special way. Therefore _NEED_VAR_IMPORT_ is defined. */
-#define _NEED_VAR_IMPORT_
-
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_LIBPCAP
-#include <pcap.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#include <ctype.h>
#include <glib.h>
-#include <epan/prefs.h>
-#include "pcap-util.h"
+#include "epan/prefs.h"
+#include "epan/ex-opt.h"
+#include "capture_ifinfo.h"
#include "capture_ui_utils.h"
/*
* Find user-specified capture device description that matches interface
* name, if any.
*/
-static char *
+char *
capture_dev_user_descr_find(const gchar *if_name)
{
char *p;
return NULL;
}
+gint
+capture_dev_user_linktype_find(const gchar *if_name)
+{
+ gchar *p, *next;
+ long linktype;
+
+ if (prefs.capture_devices_linktypes == NULL) {
+ /* There are no link-layer header types */
+ return -1;
+ }
+
+ if ((p = strstr(prefs.capture_devices_linktypes, if_name)) == NULL) {
+ /* There are, but there isn't one for this interface. */
+ return -1;
+ }
+
+ p += strlen(if_name) + 1;
+ linktype = strtol(p, &next, 10);
+ if (next == p || *next != ')' || linktype < 0) {
+ /* Syntax error */
+ return -1;
+ }
+ if (linktype > G_MAXINT) {
+ /* Value doesn't fit in a gint */
+ return -1;
+ }
+
+ return (gint)linktype;
+}
+
/*
* Return as descriptive a name for an interface as we can get.
* If the user has specified a comment, use that. Otherwise,
- * if get_interface_list() supplies a description, use that,
+ * if capture_interface_list() supplies a description, use that,
* otherwise use the interface name.
+ *
+ * The result must be g_free()'d when you're done with it.
+ *
+ * Note: given that this calls capture_interface_list(), which attempts to
+ * open all adapters it finds in order to check whether they can be
+ * captured on, this is an expensive routine to call, so don't call it
+ * frequently.
*/
char *
get_interface_descriptive_name(const char *if_name)
GList *if_entry;
if_info_t *if_info;
int err;
- char err_buf[PCAP_ERRBUF_SIZE];
/* Do we have a user-supplied description? */
descr = capture_dev_user_descr_find(if_name);
if (descr != NULL) {
/* Yes - make a copy of that. */
descr = g_strdup(descr);
+ } else if (strcmp(if_name, "-") == 0) {
+ descr = g_strdup(ex_opt_get_nth("stdin_descr", 0));
+ if (!descr) {
+ descr = g_strdup("Standard input");
+ }
} else {
/* No, we don't have a user-supplied description; did we get
one from the OS or libpcap? */
descr = NULL;
- if_list = get_interface_list(&err, err_buf);
- if (if_list != NULL) {
+ if_list = capture_interface_list(&err, NULL);
+ if (if_list != NULL && if_name != NULL) {
if_entry = if_list;
do {
if_info = if_entry->data;
return descr;
}
+
+/* search interface info by interface name */
+static if_info_t *
+search_info(GList *if_list, gchar *if_name)
+{
+ GList *if_entry;
+ if_info_t *if_info;
+
+
+ for (if_entry = if_list; if_entry != NULL; if_entry = g_list_next(if_entry)) {
+ if_info = if_entry->data;
+
+ if(strcmp(if_name, if_info->name) == 0) {
+ return if_info;
+ }
+ }
+
+ return NULL;
+}
+
+
+/* build the string to display in the combo box for the given interface */
+char *
+build_capture_combo_name(GList *if_list, gchar *if_name)
+{
+ gchar *descr;
+ char *if_string;
+ if_info_t *if_info;
+
+
+ /* Do we have a user-supplied description? */
+ descr = capture_dev_user_descr_find(if_name);
+ if (descr != NULL) {
+ /* Yes, we have a user-supplied description; use it. */
+ if_string = g_strdup_printf("%s: %s", descr, if_name);
+ g_free(descr);
+ } else {
+ /* No, we don't have a user-supplied description; did we get
+ one from the OS or libpcap? */
+ if_info = search_info(if_list, if_name);
+ if (if_info && if_info->description != NULL) {
+ /* Yes - use it. */
+ if_string = g_strdup_printf("%s: %s", if_info->description,
+ if_info->name);
+ } else {
+ /* No. */
+ if_string = g_strdup(if_name);
+ }
+ }
+
+ return if_string;
+}
+
+
GList *
build_capture_combo_list(GList *if_list, gboolean do_hide)
{
/* Is this interface hidden and, if so, should we include it
anyway? */
- if (prefs.capture_devices_hide == NULL ||
- strstr(prefs.capture_devices_hide, if_info->name) == NULL ||
- !do_hide) {
- /* It's not hidden, or it is but we should include it in the list. */
+ if (!prefs_is_capture_device_hidden(if_info->name) || !do_hide) {
+ /* It's not hidden, or it is but we should include it in the list. */
- /* Do we have a user-supplied description? */
- descr = capture_dev_user_descr_find(if_info->name);
- if (descr != NULL) {
- /* Yes, we have a user-supplied description; use it. */
- if_string = g_strdup_printf("%s: %s", descr, if_info->name);
- g_free(descr);
- } else {
- /* No, we don't have a user-supplied description; did we get
- one from the OS or libpcap? */
- if (if_info->description != NULL) {
- /* Yes - use it. */
- if_string = g_strdup_printf("%s: %s", if_info->description,
+ /* Do we have a user-supplied description? */
+ descr = capture_dev_user_descr_find(if_info->name);
+ if (descr != NULL) {
+ /* Yes, we have a user-supplied description; use it. */
+ if_string = g_strdup_printf("%s: %s", descr, if_info->name);
+ g_free(descr);
+ } else {
+ /* No, we don't have a user-supplied description; did we get
+ one from the OS or libpcap? */
+ if (if_info->description != NULL) {
+ /* Yes - use it. */
+ if_string = g_strdup_printf("%s: %s", if_info->description,
if_info->name);
- } else {
- /* No. */
- if_string = g_strdup(if_info->name);
- }
- }
- combo_list = g_list_append(combo_list, if_string);
+ } else {
+ /* No. */
+ if_string = g_strdup(if_info->name);
+ }
+ }
+ combo_list = g_list_append(combo_list, if_string);
}
- }
+ }/*for*/
}
return combo_list;
}
* Given text that contains an interface name possibly prefixed by an
* interface description, extract the interface name.
*/
-char *
-get_if_name(char *if_text)
+const char *
+get_if_name(const char *if_text)
{
- char *if_name;
+ const char *if_name;
#ifdef _WIN32
/*
* it'll be followed by a blank if it separates the description
* and the interface name. (We don't wire in "rpcap", in case we
* support other protocols in the same syntax.)
+ * Unfortunately, another colon can be used in "rpcap://host:port/"
+ * before port. Check if colon is followed by digit.
*/
- if (strncmp(if_name, "://", 3) != 0) {
+ if ((strncmp(if_name, "://", 3) != 0) && !isdigit(if_name[1])) {
/*
- * OK, we've found a colon not followed by "//". Skip blanks
- * following it.
+ * OK, we've found a colon followed neither by "//" nor by digit.
+ * Skip blanks following it.
*/
if_name++;
while (*if_name == ' ')
return if_name;
}
+/* Return capture_opts->iface_descr (after setting it if it is not set)
+ * This is necessary because capture_opts.c can't set iface_descr (at least
+ * not without adding significant dependencies there).
+ */
+const char *
+get_iface_description(capture_options *capture_opts)
+{
+ if (!capture_opts->iface_descr && capture_opts->iface)
+ capture_opts->iface_descr = get_interface_descriptive_name(capture_opts->iface);
+
+ return(capture_opts->iface_descr);
+
+}
#endif /* HAVE_LIBPCAP */
git.samba.org / obnox / wireshark / wip.git / blobdiff