2 * Copyright (C) 2005-2011 Kay Sievers <kay@vrfy.org>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
23 #include <sys/types.h>
24 #include <sys/socket.h>
29 #include "udev-util.h"
31 static void print_help(void) {
32 printf("%s control COMMAND\n\n"
33 "Control the udev daemon.\n\n"
34 " -h --help Show this help\n"
35 " --version Show package version\n"
36 " -e --exit Instruct the daemon to cleanup and exit\n"
37 " -l --log-priority=LEVEL Set the udev log level for the daemon\n"
38 " -s --stop-exec-queue Do not execute events, queue only\n"
39 " -S --start-exec-queue Execute events, flush queue\n"
40 " -R --reload Reload rules and databases\n"
41 " -p --property=KEY=VALUE Set a global property for all events\n"
42 " -m --children-max=N Maximum number of children\n"
43 " --timeout=SECONDS Maximum time to block for a reply\n"
44 , program_invocation_short_name);
47 static int adm_control(struct udev *udev, int argc, char *argv[]) {
48 _cleanup_udev_ctrl_unref_ struct udev_ctrl *uctrl = NULL;
52 static const struct option options[] = {
53 { "exit", no_argument, NULL, 'e' },
54 { "log-priority", required_argument, NULL, 'l' },
55 { "stop-exec-queue", no_argument, NULL, 's' },
56 { "start-exec-queue", no_argument, NULL, 'S' },
57 { "reload", no_argument, NULL, 'R' },
58 { "reload-rules", no_argument, NULL, 'R' }, /* alias for -R */
59 { "property", required_argument, NULL, 'p' },
60 { "env", required_argument, NULL, 'p' }, /* alias for -p */
61 { "children-max", required_argument, NULL, 'm' },
62 { "timeout", required_argument, NULL, 't' },
63 { "help", no_argument, NULL, 'h' },
68 fprintf(stderr, "root privileges required\n");
72 uctrl = udev_ctrl_new(udev);
76 while ((c = getopt_long(argc, argv, "el:sSRp:m:h", options, NULL)) >= 0)
79 if (udev_ctrl_send_exit(uctrl, timeout) < 0)
87 i = util_log_priority(optarg);
89 fprintf(stderr, "invalid number '%s'\n", optarg);
92 if (udev_ctrl_send_set_log_level(uctrl, util_log_priority(optarg), timeout) < 0)
99 if (udev_ctrl_send_stop_exec_queue(uctrl, timeout) < 0)
105 if (udev_ctrl_send_start_exec_queue(uctrl, timeout) < 0)
111 if (udev_ctrl_send_reload(uctrl, timeout) < 0)
117 if (strchr(optarg, '=') == NULL) {
118 fprintf(stderr, "expect <KEY>=<value> instead of '%s'\n", optarg);
121 if (udev_ctrl_send_set_env(uctrl, optarg, timeout) < 0)
130 i = strtoul(optarg, &endp, 0);
131 if (endp[0] != '\0' || i < 1) {
132 fprintf(stderr, "invalid number '%s'\n", optarg);
135 if (udev_ctrl_send_set_children_max(uctrl, i, timeout) < 0)
144 seconds = atoi(optarg);
148 fprintf(stderr, "invalid timeout value\n");
158 fprintf(stderr, "Extraneous argument: %s\n", argv[optind]);
159 else if (optind == 1)
160 fprintf(stderr, "Option missing\n");
164 const struct udevadm_cmd udevadm_control = {
167 .help = "Control the udev daemon",