![Guy Harris](/assets/img/avatar_default.png)
packet dissection, they're specific to the entire Wireshark suite of programs. svn path=/trunk/; revision=53377
342 lines
10 KiB
C
342 lines
10 KiB
C
/* update.c
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*
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* $Id$
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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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*
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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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#include "config.h"
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#include <glib.h>
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#include <string.h>
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#include <stdio.h>
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#include <epan/prefs.h>
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#include <epan/prefs-int.h>
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#include "simple_dialog.h"
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#include "version_info.h"
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#ifdef HAVE_LIBPCAP
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#include "capture-pcap-util.h"
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#endif
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#include <wsutil/file_util.h>
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#include <wsutil/filesystem.h>
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#include <wininet.h>
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#include "nio-ie5.h"
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/* update information about a single component */
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typedef struct update_info_s {
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char *prefix; /* prefix of the update file keys */
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gboolean needs_update; /* does this component need an update */
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char *version_installed; /* the version currently installed */
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char *title; /* the component title (name) */
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char *description; /* description of the component */
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char *version_recommended; /* the version recommended */
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char *url; /* the URL for an update */
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char *md5; /* md5 checksum for that update */
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char *size; /* size of that update */
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} update_info_t;
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/* download a complete file from the internet */
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int
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download_file(const char *url, const char *filename) {
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netio_ie5_t * conn;
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char buf[100];
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int chunk_len;
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int fd;
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int stream_len;
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int ret = 0;
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/* open output file */
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fd = ws_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
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if(fd == -1) {
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g_warning("Couldn't open output file %s!", filename);
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return -1;
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}
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/* connect to url */
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conn = netio_ie5_connect (url);
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if (conn == NULL) {
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ws_close(fd);
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g_warning("Couldn't connect to %s!", url);
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return -1;
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}
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do {
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/* XXX - maybe add a progress bar here */
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/* read some bytes from the url */
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chunk_len = netio_ie5_read (conn, buf, sizeof(buf));
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/* write bytes to the output file */
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stream_len = ws_write( fd, buf, chunk_len);
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if(stream_len != chunk_len) {
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g_warning("output failed: stream_len %u != chunk_len %u", stream_len, chunk_len);
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ret = -1;
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break;
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}
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} while(chunk_len > 0);
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netio_ie5_disconnect(conn);
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ws_close(fd);
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return ret;
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}
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update_info_t *
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update_info_new(void)
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{
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return g_malloc0(sizeof(update_info_t));
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}
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void
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update_info_delete(update_info_t *update_info)
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{
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g_free(update_info->prefix);
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g_free(update_info->version_installed);
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g_free(update_info->title);
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g_free(update_info->description);
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g_free(update_info->version_recommended);
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g_free(update_info->url);
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g_free(update_info->md5);
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g_free(update_info->size);
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g_free(update_info);
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}
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/* check a single key value pair */
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static void
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update_pref_check(gchar *pref_name, gchar *value, char *check_prefix, char *check_name, char **check_value)
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{
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GString *check = g_string_new(check_prefix);
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g_string_append(check, check_name);
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if(strcmp(pref_name, check->str) == 0) {
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if(*check_value)
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/* there shouldn't be a duplicate entry in the update file */
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g_warning("Duplicate of %s: current %s former %s", pref_name, value, *check_value);
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else
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*check_value = g_strdup(value);
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}
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g_string_free(check, TRUE);
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}
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/* a new key value pair from the update file */
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static prefs_set_pref_e
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update_pref(gchar *pref_name, gchar *value, void *private_data)
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{
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update_info_t *update_info = private_data;
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update_pref_check(pref_name, value, update_info->prefix, "title", &update_info->title);
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update_pref_check(pref_name, value, update_info->prefix, "description", &update_info->description);
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update_pref_check(pref_name, value, update_info->prefix, "version", &update_info->version_recommended);
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update_pref_check(pref_name, value, update_info->prefix, "update.url", &update_info->url);
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update_pref_check(pref_name, value, update_info->prefix, "update.md5", &update_info->md5);
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update_pref_check(pref_name, value, update_info->prefix, "update.size", &update_info->size);
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return PREFS_SET_OK;
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}
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/* display an update_info */
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static void
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update_info_display(update_info_t *update_info)
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{
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GString *overview;
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overview = g_string_new("");
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if(update_info->title) {
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g_string_append_printf(overview, "%s%s%s",
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simple_dialog_primary_start(), update_info->title, simple_dialog_primary_end());
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} else {
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g_string_append_printf(overview, "%sComponent%s",
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simple_dialog_primary_start(), simple_dialog_primary_end());
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}
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g_string_append(overview, "\n\n");
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if(update_info->description)
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g_string_append_printf(overview, "%s\n\n", update_info->description);
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g_string_append_printf(overview, "Installed: %s\n", update_info->version_installed);
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if(update_info->version_recommended)
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g_string_append_printf(overview, "Recommended: %s\n", update_info->version_recommended);
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else
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g_string_append(overview, "Recommenced: unknown\n");
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if(update_info->version_recommended && update_info->url)
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g_string_append_printf(overview, "From: %s\n", update_info->url);
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if(update_info->size)
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g_string_append_printf(overview, "Size: %s", update_info->size);
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simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK, overview->str);
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g_string_free(overview, TRUE);
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}
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/* check the version of the wireshark program */
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static update_info_t *
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update_check_wireshark(const char *local_file)
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{
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FILE *pf;
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update_info_t *update_info = update_info_new();
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update_info->version_installed = g_strdup(VERSION);
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update_info->prefix = "wireshark.setup.";
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pf = ws_fopen(local_file, "r");
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if(pf != NULL) {
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/* read in update_info of Wireshark */
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read_prefs_file(local_file, pf, update_pref, update_info);
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fclose(pf);
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/* check if Wireshark needs an update */
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if(update_info->version_installed && update_info->version_recommended &&
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strcmp(update_info->version_installed, update_info->version_recommended) != 0)
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{
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update_info->needs_update = TRUE;
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}
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} else {
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g_warning("Could not open %s", local_file);
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}
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return update_info;
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}
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/* check the version of winpcap */
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static update_info_t *
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update_check_winpcap(const char *local_file)
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{
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FILE *pf;
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update_info_t * update_info = update_info_new();
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GString *pcap_version_tmp;
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char *pcap_version = NULL;
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char *pcap_vstart;
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char *pcap_vend;
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update_info->prefix = "winpcap.";
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pf = ws_fopen(local_file, "r");
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if(pf != NULL) {
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/* read in update_info of WinPcap */
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read_prefs_file(local_file, pf, update_pref, update_info);
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fclose(pf);
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/* get WinPcap version */
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/* XXX - what's the "approved" method to get the WinPcap version? */
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pcap_version_tmp = g_string_new("");
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get_runtime_pcap_version(pcap_version_tmp);
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/* cut out real version from "combined" version string */
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pcap_vstart = strstr(pcap_version_tmp->str, "with WinPcap version ");
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if(pcap_vstart != NULL) {
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pcap_vstart += sizeof("with WinPcap version");
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pcap_vend = strstr(pcap_vstart, " ");
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if(pcap_vend != NULL) {
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pcap_vend[0] = 0;
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pcap_version = g_strdup(pcap_vstart);
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}
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}
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update_info->version_installed = g_strdup(pcap_version);
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if(pcap_version && update_info->version_recommended &&
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strcmp(pcap_version, update_info->version_recommended) != 0)
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{
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update_info->needs_update = TRUE;
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}
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} else {
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g_warning("Could not open %s", local_file);
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}
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g_string_free(pcap_version_tmp, TRUE);
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g_free(pcap_version);
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return update_info;
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}
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/* check for all updates */
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void
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update_check(gboolean interactive)
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{
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char *local_file;
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const char *url_file = "http://127.0.0.1/wsupdate"; /* XXX - build the URL depending on platform, versions, ... */
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update_info_t *update_info_wireshark;
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update_info_t *update_info_winpcap;
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/* build update file name */
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/* XXX - using the personal path, use temp dir instead? */
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local_file = get_persconffile_path("wsupdate", FALSE);
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if(local_file == NULL) {
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g_warning("Couldn't create output path!");
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return;
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}
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/* download update file */
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if(download_file(url_file, local_file) == -1) {
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g_warning("Couldn't download update file: %s", local_file);
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g_free(local_file);
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return;
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}
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/* check wireshark */
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update_info_wireshark = update_check_wireshark(local_file);
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/* check winpcap */
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update_info_winpcap = update_check_winpcap(local_file);
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/* display results */
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if(update_info_wireshark->needs_update || update_info_winpcap->needs_update) {
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if(update_info_wireshark->needs_update)
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update_info_display(update_info_wireshark);
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if(update_info_winpcap->needs_update)
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update_info_display(update_info_winpcap);
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} else {
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if(interactive) {
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simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK, "No updates available");
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}
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}
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/* cleanup */
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update_info_delete(update_info_wireshark);
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update_info_delete(update_info_winpcap);
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g_free(local_file);
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}
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