2 * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
3 * Copyright (C) 2004-2008 Kay Sievers <kay.sievers@vrfy.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
33 static void sig_handler(int signum)
44 int main(int argc, char *argv[])
47 struct udev_event *event;
48 struct udev_device *dev;
49 struct udev_rules *rules;
50 char syspath[UTIL_PATH_SIZE];
53 const char *subsystem;
61 info(udev, "version %s\n", VERSION);
62 udev_selinux_init(udev);
64 /* set signal handlers */
65 memset(&act, 0x00, sizeof(act));
66 act.sa_handler = sig_handler;
67 sigemptyset (&act.sa_mask);
69 sigaction(SIGALRM, &act, NULL);
70 sigaction(SIGINT, &act, NULL);
71 sigaction(SIGTERM, &act, NULL);
73 sigaddset(&mask, SIGALRM);
74 sigaddset(&mask, SIGINT);
75 sigaddset(&mask, SIGTERM);
76 sigprocmask(SIG_UNBLOCK, &mask, NULL);
78 /* trigger timeout to prevent hanging processes */
79 alarm(UDEV_EVENT_TIMEOUT);
81 action = getenv("ACTION");
82 devpath = getenv("DEVPATH");
83 subsystem = getenv("SUBSYSTEM");
85 if (action == NULL || subsystem == NULL || devpath == NULL) {
86 err(udev, "action, subsystem or devpath missing\n");
90 rules = udev_rules_new(udev, 1);
92 util_strscpyl(syspath, sizeof(syspath), udev_get_sys_path(udev), devpath, NULL);
93 dev = udev_device_new_from_syspath(udev, syspath);
95 info(udev, "unknown device '%s'\n", devpath);
99 /* skip reading of db, but read kernel parameters */
100 udev_device_set_info_loaded(dev);
101 udev_device_read_uevent_file(dev);
103 udev_device_set_action(dev, action);
104 event = udev_event_new(dev);
105 err = udev_event_execute_rules(event, rules);
107 /* rules may change/disable the timeout */
108 if (udev_device_get_event_timeout(dev) >= 0)
109 alarm(udev_device_get_event_timeout(dev));
112 udev_event_execute_run(event, NULL);
114 udev_event_unref(event);
115 udev_device_unref(dev);
117 udev_rules_unref(rules);
119 udev_selinux_exit(udev);