ubase

commit 5bbc67aa96b094c1f8edbf6e67ccf64cded7fc3d
parent 5836145a5c4518131303027a47afb42679cc0da1
Author: sin <sin@2f30.org>
Date:   Tue,  3 Jun 2014 16:04:53 +0100

Allow to specify the rtc devnode for hwclock(8)

Diffstat:
M
hwclock.c
 | 
7
++++++-

1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/hwclock.c b/hwclock.c
@@ -21,7 +21,7 @@ static void systohc(char *);
 static void
 usage(void)
 {
-	eprintf("usage: %s [-rsw] [-u]\n", argv0);
+	eprintf("usage: %s [-rsw] [-u] [dev]\n", argv0);
 }
 
 int
@@ -48,6 +48,11 @@ main(int argc, char *argv[])
 		usage();
 	} ARGEND;
 
+	if (argc > 1)
+		usage();
+	else if (argc == 1)
+		dev = argv[0];
+
 	if ((rflag ^ sflag ^ wflag) == 0)
 		eprintf("missing or incompatible function\n");