sort: -o FILE should create/truncate FILE

[oweals/busybox.git] / coreutils / usleep.c

diff --git a/coreutils/usleep.c b/coreutils/usleep.c
index dcb40d65a2d7e22eac288bb75d1d1abbf350cdac..cb4ec5898e3f279376eab38db11c6133db18db57 100644 (file)
--- a/coreutils/usleep.c
+++ b/coreutils/usleep.c
@@ -1,38 +1,28 @@
 /* vi: set sw=4 ts=4: */
 /*
- * Mini usleep implementation for busybox
+ * usleep implementation for busybox
  *
+ * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
  *
- * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
-#include "internal.h"
-#include <stdlib.h>
-#include <unistd.h>
+/* BB_AUDIT SUSv3 N/A -- Apparently a busybox extension. */
 
-const char usleep_usage[] = "usleep N\n\n" "Pause for N microseconds.\n";
+#include "libbb.h"
 
-extern int usleep_main(int argc, char **argv)
+/* This is a NOFORK applet. Be very careful! */
+
+int usleep_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int usleep_main(int argc UNUSED_PARAM, char **argv)
 {
-       if ((argc < 2) || (**(argv + 1) == '-')) {
-               usage(usleep_usage);
+       if (!argv[1]) {
+               bb_show_usage();
+       }
+
+       if (usleep(xatou(argv[1]))) {
+               bb_perror_nomsg_and_die();
        }
 
-       usleep(atoi(*(++argv)));        /* return void */
-       exit(TRUE);
+       return EXIT_SUCCESS;
 }