chiark / gitweb /
resolved: when there's already somebody listening on the LLMNR ports, simple disable...
[elogind.git] / src / ac-power / ac-power.c
index 37313cf..bd1b6ec 100644 (file)
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdlib.h>
-#include <stdbool.h>
-#include <errno.h>
-#include <string.h>
-#include <libudev.h>
-
 #include "util.h"
 
-static int on_ac_power(void) {
-        int r;
-
-        struct udev *udev;
-        struct udev_enumerate *e = NULL;
-        struct udev_list_entry *item = NULL, *first = NULL;
-        bool found_offline = false, found_online = false;
-
-        if (!(udev = udev_new())) {
-                r = -ENOMEM;
-                goto finish;
-        }
-
-        if (!(e = udev_enumerate_new(udev))) {
-                r = -ENOMEM;
-                goto finish;
-        }
-
-        if (udev_enumerate_add_match_subsystem(e, "power_supply") < 0) {
-                r = -EIO;
-                goto finish;
-        }
-
-        if (udev_enumerate_scan_devices(e) < 0) {
-                r = -EIO;
-                goto finish;
-        }
-
-        first = udev_enumerate_get_list_entry(e);
-        udev_list_entry_foreach(item, first) {
-                struct udev_device *d;
-                const char *type, *online;
-
-                if (!(d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item)))) {
-                        r = -ENOMEM;
-                        goto finish;
-                }
-
-                if (!(type = udev_device_get_sysattr_value(d, "type")))
-                        goto next;
-
-                if (!streq(type, "Mains"))
-                        goto next;
-
-                if (!(online = udev_device_get_sysattr_value(d, "online")))
-                        goto next;
-
-                if (streq(online, "1")) {
-                        found_online = true;
-                        break;
-                } else if (streq(online, "0"))
-                        found_offline = true;
-
-        next:
-                udev_device_unref(d);
-        }
-
-        r = found_online || !found_offline;
-
-finish:
-        if (e)
-                udev_enumerate_unref(e);
-
-        if (udev)
-                udev_unref(udev);
-
-        return r;
-}
-
 int main(int argc, char *argv[]) {
         int r;
 
         /* This is mostly intended to be used for scripts which want
          * to detect whether AC power is plugged in or not. */
 
-        if ((r = on_ac_power()) < 0) {
+        r = on_ac_power();
+        if (r < 0) {
                 log_error("Failed to read AC status: %s", strerror(-r));
                 return EXIT_FAILURE;
         }
 
-        return r == 0;
+        return r != 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 }