18c2aff776a775d34a4c9893a4c72e0434d68e36artem/***************************************************************************
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * CVSID: $Id$
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * hal_find_by_property.c : Find hal devices
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * Copyright (C) 2005 David Zeuthen, <david@fubar.dk>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * Licensed under the Academic Free License version 2.1
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * This program is free software; you can redistribute it and/or modify
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * it under the terms of the GNU General Public License as published by
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * the Free Software Foundation; either version 2 of the License, or
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * (at your option) any later version.
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * This program is distributed in the hope that it will be useful,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * but WITHOUT ANY WARRANTY; without even the implied warranty of
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * GNU General Public License for more details.
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * You should have received a copy of the GNU General Public License
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * along with this program; if not, write to the Free Software
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem **************************************************************************/
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_CONFIG_H
18c2aff776a775d34a4c9893a4c72e0434d68e36artem# include <config.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <stdio.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <string.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <unistd.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <getopt.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <libhal.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem/** Print out program usage.
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * @param argc Number of arguments given to program
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * @param argv Arguments given to program
18c2aff776a775d34a4c9893a4c72e0434d68e36artem */
18c2aff776a775d34a4c9893a4c72e0434d68e36artemstatic void
18c2aff776a775d34a4c9893a4c72e0434d68e36artemusage (int argc, char *argv[])
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "usage : hal-find-by-property --key <key> --string <value>\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem " [--help] [--verbose] [--version]\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem/** @todo support other property types a'la hal-[get|set]-property */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem " --key Key of the property to check\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem " --string String value of property\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem " --verbose Be verbose\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem " --version Show version and exit\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem " --help Show this information and exit\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "This program prints the Unique Device Identifiers for HAL device\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "objects where a given property assumes a given value. On success\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "the program exists with exit code 0. If there is an error, the\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "program exits with an exit code different from 0.\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem/** Entry point
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * @param argc Number of arguments given to program
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * @param argv Arguments given to program
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * @return Return code
18c2aff776a775d34a4c9893a4c72e0434d68e36artem */
18c2aff776a775d34a4c9893a4c72e0434d68e36artemint
18c2aff776a775d34a4c9893a4c72e0434d68e36artemmain (int argc, char *argv[])
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem int i;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem int num_udis;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char **udis;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *key = NULL;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *value = NULL;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem dbus_bool_t is_verbose = FALSE;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem dbus_bool_t is_version = FALSE;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem DBusError error;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LibHalContext *hal_ctx;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (argc <= 1) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage (argc, argv);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem while (1) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem int c;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem int option_index = 0;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem const char *opt;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem static struct option long_options[] = {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem {"key", 1, NULL, 0},
18c2aff776a775d34a4c9893a4c72e0434d68e36artem {"string", 1, NULL, 0},
18c2aff776a775d34a4c9893a4c72e0434d68e36artem {"verbose", 0, NULL, 0},
18c2aff776a775d34a4c9893a4c72e0434d68e36artem {"version", 0, NULL, 0},
18c2aff776a775d34a4c9893a4c72e0434d68e36artem {"help", 0, NULL, 0},
18c2aff776a775d34a4c9893a4c72e0434d68e36artem {NULL, 0, NULL, 0}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem };
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem c = getopt_long (argc, argv, "",
18c2aff776a775d34a4c9893a4c72e0434d68e36artem long_options, &option_index);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (c == -1)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem switch (c) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem case 0:
18c2aff776a775d34a4c9893a4c72e0434d68e36artem opt = long_options[option_index].name;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (strcmp (opt, "help") == 0) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage (argc, argv);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 0;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else if (strcmp (opt, "verbose") == 0) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem is_verbose = TRUE;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else if (strcmp (opt, "version") == 0) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem is_version = TRUE;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else if (strcmp (opt, "key") == 0) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem key = strdup (optarg);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else if (strcmp (opt, "string") == 0) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem value = strdup (optarg);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem default:
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage (argc, argv);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (is_version) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("hal-find-by-property " PACKAGE_VERSION "\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 0;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (key == NULL || value == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage (argc, argv);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem dbus_error_init (&error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if ((hal_ctx = libhal_ctx_new ()) == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "error: libhal_ctx_new\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (!libhal_ctx_set_dbus_connection (hal_ctx, dbus_bus_get (DBUS_BUS_SYSTEM, &error))) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "error: libhal_ctx_set_dbus_connection: %s: %s\n", error.name, error.message);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LIBHAL_FREE_DBUS_ERROR (&error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (!libhal_ctx_init (hal_ctx, &error)) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (dbus_error_is_set(&error)) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "error: libhal_ctx_init: %s: %s\n", error.name, error.message);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LIBHAL_FREE_DBUS_ERROR (&error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "Could not initialise connection to hald.\n"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem "Normally this means the HAL daemon (hald) is not running or not ready.\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem udis = libhal_manager_find_device_string_match (hal_ctx, key, value, &num_udis, &error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (dbus_error_is_set (&error)) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "error: %s: %s\n", error.name, error.message);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LIBHAL_FREE_DBUS_ERROR (&error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (is_verbose)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("Found %d device objects with string property %s = '%s'\n", num_udis, key, value);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (num_udis == 0) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 1;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem for (i = 0; i < num_udis; i++) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("%s\n", udis[i]);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem libhal_free_string_array (udis);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 0;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem/**
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * @}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem */