ubase

commit 7b27c7f87c01b00b6a3e5cd7a60fb832681d5ccc
parent b6669b5f196275bcf205abe5904b63bcd9213011
Author: FRIGN <dev@frign.de>
Date:   Mon,  7 Sep 2015 12:33:16 +0200

Refactor clear(1)

Adopting best practices(tm) we developed with sbase.

Diffstat:
M
clear.1
 | 
2
+-
M
clear.c
 | 
16
+++++++++++++++-

2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/clear.1 b/clear.1
@@ -8,4 +8,4 @@
 .Nm
 .Sh DESCRIPTION
 .Nm
-clears the screen
+clears the screen.
diff --git a/clear.c b/clear.c
@@ -2,9 +2,23 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "util.h"
+
+static void
+usage(void)
+{
+	eprintf("usage: %s\n", argv0);
+}
+
 int
-main(void)
+main(int argc, char *argv[])
 {
+	argv0 = argv[0], argc--, argv++;
+
+	if (argc)
+		usage();
+
 	printf("\x1b[2J\x1b[H");
+
 	return 0;
 }