add (bad) chown

apps/chown.c

@@ -0,0 +1,26 @@
+/* vim: tabstop=4 shiftwidth=4 noexpandtab
+ * This file is part of ToaruOS and is released under the terms
+ * of the NCSA / University of Illinois License - see LICENSE.md
+ * Copyright (C) 2018 K. Lange
+ *
+ * chown - bad implementation thereof
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+
+int main(int argc, char * argv[]) {
+	if (argc != 3) {
+		fprintf(stderr, "usage: chown UID FILE\n");
+		return 1;
+	}
+
+	int uid = atoi(argv[1]);
+
+	if (chown(argv[2], uid, uid)) {
+		fprintf(stderr, "chown: %s: %s\n", argv[2], strerror(errno));
+		return 1;
+	}
+	return 0;
+}