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("Usage: udevadm control COMMAND\n"
33 " -e,--exit instruct the daemon to cleanup and exit\n"
34 " -l,--log-priority=LEVEL set the udev log level for the daemon\n"
35 " -s,--stop-exec-queue do not execute events, queue only\n"
36 " -S,--start-exec-queue execute events, flush queue\n"
37 " -R,--reload reload rules and databases\n"
38 " -p,--property=KEY=VALUE set a global property for all events\n"
39 " -m,--children-max=N maximum number of children\n"
40 " --timeout=SECONDS maximum time to block for a reply\n"
41 " -h,--help print this help text\n\n");
44 static int adm_control(struct udev *udev, int argc, char *argv[]) {
45 _cleanup_udev_ctrl_unref_ struct udev_ctrl *uctrl = NULL;
49 static const struct option options[] = {
50 { "exit", no_argument, NULL, 'e' },
51 { "log-priority", required_argument, NULL, 'l' },
52 { "stop-exec-queue", no_argument, NULL, 's' },
53 { "start-exec-queue", no_argument, NULL, 'S' },
54 { "reload", no_argument, NULL, 'R' },
55 { "reload-rules", no_argument, NULL, 'R' }, /* alias for -R */
56 { "property", required_argument, NULL, 'p' },
57 { "env", required_argument, NULL, 'p' }, /* alias for -p */
58 { "children-max", required_argument, NULL, 'm' },
59 { "timeout", required_argument, NULL, 't' },
60 { "help", no_argument, NULL, 'h' },
65 fprintf(stderr, "root privileges required\n");
69 uctrl = udev_ctrl_new(udev);
73 while ((c = getopt_long(argc, argv, "el:sSRp:m:h", options, NULL)) >= 0)
76 if (udev_ctrl_send_exit(uctrl, timeout) < 0)
84 i = util_log_priority(optarg);
86 fprintf(stderr, "invalid number '%s'\n", optarg);
89 if (udev_ctrl_send_set_log_level(uctrl, util_log_priority(optarg), timeout) < 0)
96 if (udev_ctrl_send_stop_exec_queue(uctrl, timeout) < 0)
102 if (udev_ctrl_send_start_exec_queue(uctrl, timeout) < 0)
108 if (udev_ctrl_send_reload(uctrl, timeout) < 0)
114 if (strchr(optarg, '=') == NULL) {
115 fprintf(stderr, "expect <KEY>=<value> instead of '%s'\n", optarg);
118 if (udev_ctrl_send_set_env(uctrl, optarg, timeout) < 0)
127 i = strtoul(optarg, &endp, 0);
128 if (endp[0] != '\0' || i < 1) {
129 fprintf(stderr, "invalid number '%s'\n", optarg);
132 if (udev_ctrl_send_set_children_max(uctrl, i, timeout) < 0)
141 seconds = atoi(optarg);
145 fprintf(stderr, "invalid timeout value\n");
155 fprintf(stderr, "Extraneous argument: %s\n", argv[optind]);
156 else if (optind == 1)
157 fprintf(stderr, "Option missing\n");
161 const struct udevadm_cmd udevadm_control = {
164 .help = "control the udev daemon",