![Guy Harris](/assets/img/avatar_default.png)
Change-Id: I2941bb7e6dc0fce3e1256af6e5e19d2997de5801 Reviewed-on: https://code.wireshark.org/review/7573 Reviewed-by: Guy Harris <guy@alum.mit.edu>
165 lines
3.9 KiB
C
165 lines
3.9 KiB
C
/* tap-hosts.c
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* Dump our collected IPv4- and IPv6-to-hostname mappings */
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include "globals.h"
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#include <epan/packet.h>
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#include <epan/tap.h>
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#include <epan/stat_tap_ui.h>
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#include <epan/addr_resolv.h>
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void register_tap_listener_hosts(void);
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gboolean dump_v4 = FALSE;
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gboolean dump_v6 = FALSE;
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#define TAP_NAME "hosts"
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#define HOSTNAME_POS 48
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#define ADDRSTRLEN 46 /* Covers IPv4 & IPv6 */
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static void
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ipv4_hash_table_print_resolved(gpointer key _U_, gpointer value, gpointer user_data _U_)
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{
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hashipv4_t *ipv4_hash_table_entry = (hashipv4_t *)value;
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if (!(ipv4_hash_table_entry->flags & DUMMY_ADDRESS_ENTRY)) {
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printf("%s\t%s\n",
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ipv4_hash_table_entry->ip,
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ipv4_hash_table_entry->name);
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}
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}
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static void
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ipv6_hash_table_print_resolved(gpointer key _U_, gpointer value, gpointer user_data _U_)
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{
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hashipv6_t *ipv6_hash_table_entry = (hashipv6_t *)value;
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if (!(ipv6_hash_table_entry->flags & DUMMY_ADDRESS_ENTRY)) {
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printf("%s\t%s\n",
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ipv6_hash_table_entry->ip6,
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ipv6_hash_table_entry->name);
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}
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}
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static void
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hosts_draw(void *dummy _U_)
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{
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GHashTable *ipv4_hash_table;
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GHashTable *ipv6_hash_table;
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printf("# TShark hosts output\n");
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printf("#\n");
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printf("# Host data gathered from %s\n", cfile.filename);
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printf("\n");
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ipv4_hash_table = get_ipv4_hash_table();
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if (ipv4_hash_table) {
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g_hash_table_foreach( ipv4_hash_table, ipv4_hash_table_print_resolved, NULL);
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}
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ipv6_hash_table = get_ipv6_hash_table();
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if (ipv6_hash_table) {
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g_hash_table_foreach( ipv6_hash_table, ipv6_hash_table_print_resolved, NULL);
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}
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}
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static void
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hosts_init(const char *opt_arg, void *userdata _U_)
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{
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GString *error_string;
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gchar **tokens;
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gint opt_count;
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dump_v4 = FALSE;
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dump_v6 = FALSE;
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if (strcmp(TAP_NAME, opt_arg) == 0) {
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/* No arguments; dump everything */
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dump_v4 = TRUE;
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dump_v6 = TRUE;
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} else {
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tokens = g_strsplit(opt_arg, ",", 0);
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opt_count = 0;
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while (tokens[opt_count]) {
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if (strcmp("ipv4", tokens[opt_count]) == 0) {
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dump_v4 = TRUE;
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} else if (strcmp("ipv6", tokens[opt_count]) == 0) {
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dump_v6 = TRUE;
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} else if (opt_count > 0) {
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fprintf(stderr, "tshark: invalid \"-z " TAP_NAME "[,ipv4|ipv6]\" argument\n");
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exit(1);
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}
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opt_count++;
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}
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g_strfreev(tokens);
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}
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error_string = register_tap_listener("frame", NULL, NULL, TL_REQUIRES_PROTO_TREE,
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NULL, NULL, hosts_draw);
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if (error_string) {
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/* error, we failed to attach to the tap. clean up */
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fprintf(stderr, "tshark: Couldn't register " TAP_NAME " tap: %s\n",
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error_string->str);
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g_string_free(error_string, TRUE);
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exit(1);
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}
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}
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static stat_tap_ui hosts_ui = {
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REGISTER_STAT_GROUP_GENERIC,
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NULL,
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TAP_NAME,
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hosts_init,
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0,
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NULL
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};
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void
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register_tap_listener_hosts(void)
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{
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register_stat_tap_ui(&hosts_ui, NULL);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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