if (lstat(file, &stats) == 0) {
if (((stats.st_mode & S_IFMT) == (mode & S_IFMT)) && (stats.st_rdev == devnum)) {
info(udev, "preserve file '%s', because it has correct dev_t\n", file);
- if (stats.st_mode != mode || stats.st_uid != uid || stats.st_gid != gid) {
+ if ((stats.st_mode & 0777) != (mode & 0777) || stats.st_uid != uid || stats.st_gid != gid) {
+ /* preserve 'sticky' bit, if already set */
+ mode |= stats.st_mode & 01000;
info(udev, "set permissions %s, %#o, uid=%u, gid=%u\n", file, mode, uid, gid);
chmod(file, mode);
chown(file, uid, gid);
goto out;
}
+ if (stats.st_mode & 01000) {
+ info(udev, "device node '%s' has sticky bit set, skip removal\n", devnode);
+ goto out;
+ }
+
dev_check = udev_device_new_from_syspath(udev, udev_device_get_syspath(dev));
if (dev_check != NULL) {
/* do not remove device node if the same sys-device is re-created in the meantime */