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/>.
32 #include "udev-rules.h"
34 static void asmlinkage sig_handler(int signum)
45 int main(int argc, char *argv[])
48 struct udev_event *event;
49 struct udev_device *dev;
50 struct udev_rules rules;
51 char syspath[UTIL_PATH_SIZE];
54 const char *subsystem;
61 info(udev, "version %s\n", VERSION);
64 /* set signal handlers */
65 memset(&act, 0x00, sizeof(act));
66 act.sa_handler = (void (*)(int)) sig_handler;
67 sigemptyset (&act.sa_mask);
69 sigaction(SIGALRM, &act, NULL);
70 sigaction(SIGINT, &act, NULL);
71 sigaction(SIGTERM, &act, NULL);
73 /* trigger timeout to prevent hanging processes */
74 alarm(UDEV_EVENT_TIMEOUT);
76 action = getenv("ACTION");
77 devpath = getenv("DEVPATH");
78 subsystem = getenv("SUBSYSTEM");
80 if (action == NULL || subsystem == NULL || devpath == NULL) {
81 err(udev, "action, subsystem or devpath missing\n");
85 udev_rules_init(udev, &rules, 0);
87 util_strlcpy(syspath, udev_get_sys_path(udev), sizeof(syspath));
88 util_strlcat(syspath, devpath, sizeof(syspath));
89 dev = udev_device_new_from_syspath(udev, syspath);
91 info(udev, "unknown device '%s'\n", devpath);
95 /* skip reading of db, but read kernel parameters */
96 udev_device_set_info_loaded(dev);
97 udev_device_read_uevent_file(dev);
99 udev_device_set_action(dev, action);
100 event = udev_event_new(dev);
101 err = udev_event_run(event, &rules);
103 /* rules may change/disable the timeout */
104 if (udev_device_get_event_timeout(dev) >= 0)
105 alarm(udev_device_get_event_timeout(dev));
107 if (err == 0 && !event->ignore_device && udev_get_run(udev))
108 udev_rules_run(event);
110 udev_event_unref(event);
111 udev_device_unref(dev);
113 udev_rules_cleanup(&rules);