relicense to LGPLv2.1 (with exceptions)

[elogind.git] / src / ac-power.c

diff --git a/src/ac-power.c b/src/ac-power.c
index a30216ffb3451582f52b4a858f5af0d7d7083844..37313cf144d2051c8d250de9824d068bf0eb33c2 100644 (file)
--- a/src/ac-power.c
+++ b/src/ac-power.c
@@ -6,16 +6,16 @@
   Copyright 2010 Lennart Poettering
 
   systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
   (at your option) any later version.
 
   systemd is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  General Public License for more details.
+  Lesser General Public License for more details.
 
-  You should have received a copy of the GNU General Public License
+  You should have received a copy of the GNU Lesser General Public License
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
@@ -26,9 +26,8 @@
 #include <libudev.h>
 
 #include "util.h"
-#include "ac-power.h"
 
-int on_ac_power(void) {
+static int on_ac_power(void) {
         int r;
 
         struct udev *udev;
@@ -96,3 +95,17 @@ finish:
 
         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) {
+                log_error("Failed to read AC status: %s", strerror(-r));
+                return EXIT_FAILURE;
+        }
+
+        return r == 0;
+}