initctl: check for kexec_loaded when reboot is requested through initctl

[elogind.git] / src / util.c

diff --git a/src/util.c b/src/util.c
index 65d4b143dc97cbdae365fe6199ac5eb32be4b576..6033aa05b271b4f55f361d31d576ba13c979de76 100644 (file)
--- a/src/util.c
+++ b/src/util.c
@@ -5852,3 +5852,15 @@ static const char *const signal_table[] = {
 };
 
 DEFINE_STRING_TABLE_LOOKUP(signal, int);
+
+bool kexec_loaded(void) {
+       bool loaded = false;
+       char *s;
+
+       if (read_one_line_file("/sys/kernel/kexec_loaded", &s) >= 0) {
+               if (s[0] == '1')
+                       loaded = true;
+               free(s);
+       }
+       return loaded;
+}