Set owner of /var/run/utmp to root:utmp

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>

helpers.c

@@ -17,6 +17,8 @@
 #include <sys/wait.h>
 #endif
 
+#include <grp.h>
+
 #include "helpers.h"
 
 /*
@@ -157,6 +159,16 @@ int run_parts(char *dir, ...)
 	return 0;
 }
 
+int getgroup(char *s)
+{
+	struct group *grp;
+
+	if ((grp = getgrnam(s)) == NULL)
+		return -1;
+
+	return grp->gr_gid;
+}
+
 /*
  * Other convenience functions
  */