- fd = open("/dev/kmsg", O_WRONLY);
- if (fd > 0) {
- const char *ver_str = "<6>udev: starting version " VERSION "\n";
- char path[UTIL_PATH_SIZE];
- struct stat statbuf;
-
- write(fd, ver_str, strlen(ver_str));
- util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
- util_strlcat(path, "/class/mem/null", sizeof(path));
- if (lstat(path, &statbuf) == 0) {
- if (S_ISDIR(statbuf.st_mode)) {
- const char *depr_str = "<6>udev: deprecated sysfs layout (kernel too old, "
- "or CONFIG_SYSFS_DEPRECATED) is unsupported, some "
- "udev features may fail\n";
-
- write(fd, depr_str, strlen(depr_str));
- }
- }
- close(fd);
- }
-
- /* set signal handlers */
- memset(&act, 0x00, sizeof(struct sigaction));
- act.sa_handler = (void (*)(int)) sig_handler;
- sigemptyset(&act.sa_mask);
- act.sa_flags = SA_RESTART;
- sigaction(SIGINT, &act, NULL);
- sigaction(SIGTERM, &act, NULL);
- sigaction(SIGCHLD, &act, NULL);
- sigaction(SIGHUP, &act, NULL);
-
- /* watch rules directory */
- inotify_fd = inotify_init();
- if (inotify_fd >= 0) {
- if (udev_get_rules_path(udev) != NULL) {
- inotify_add_watch(inotify_fd, udev_get_rules_path(udev),
- IN_CREATE | IN_DELETE | IN_MOVE | IN_CLOSE_WRITE);
- } else {
- char filename[UTIL_PATH_SIZE];
-
- inotify_add_watch(inotify_fd, UDEV_PREFIX "/lib/udev/rules.d",
- IN_CREATE | IN_DELETE | IN_MOVE | IN_CLOSE_WRITE);
- inotify_add_watch(inotify_fd, SYSCONFDIR "/udev/rules.d",
- IN_CREATE | IN_DELETE | IN_MOVE | IN_CLOSE_WRITE);
-
- /* watch dynamic rules directory */
- util_strlcpy(filename, udev_get_dev_path(udev), sizeof(filename));
- util_strlcat(filename, "/.udev/rules.d", sizeof(filename));
- inotify_add_watch(inotify_fd, filename,
- IN_CREATE | IN_DELETE | IN_MOVE | IN_CLOSE_WRITE);
- }
- } else if (errno == ENOSYS)
- err(udev, "the kernel does not support inotify, udevd can't monitor rules file changes\n");
- else
- err(udev, "inotify_init failed: %m\n");
-