- add libbb function str_tolower to convert a string to lowercase.

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

diff --git a/coreutils/sleep.c b/coreutils/sleep.c
index 7bc98d8e85b28f9fb8a5eaed26457eff99a42d57..b89b0fe9ca488ac59671712cfa91823b599b9d27 100644 (file)
--- a/coreutils/sleep.c
+++ b/coreutils/sleep.c
@@ -1,37 +1,68 @@
 /* vi: set sw=4 ts=4: */
 /*
- * Mini sleep implementation for busybox
+ * sleep implementation for busybox
  *
- * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
+ * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
  *
- * 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 tarball for details.
+ */
+
+/* BB_AUDIT SUSv3 compliant */
+/* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/sleep.html */
+
+/* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
  *
+ * Rewritten to do proper arg and error checking.
+ * Also, added a 'fancy' configuration to accept multiple args with
+ * time suffixes for seconds, minutes, hours, and days.
  */
 
-#include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
+#include <limits.h>
+#include <unistd.h>
 #include "busybox.h"
 
-extern int sleep_main(int argc, char **argv)
+#ifdef CONFIG_FEATURE_FANCY_SLEEP
+static const struct suffix_mult sfx[] = {
+       { "s", 1 },
+       { "m", 60 },
+       { "h", 60*60 },
+       { "d", 24*60*60 },
+       { NULL, 0 }
+};
+#endif
+
+int sleep_main(int argc, char **argv);
+int sleep_main(int argc, char **argv)
 {
-       if ((argc < 2) || (**(argv + 1) == '-')) {
-               show_usage();
+       unsigned int duration;
+
+#ifdef CONFIG_FEATURE_FANCY_SLEEP
+
+       if (argc < 2) {
+               bb_show_usage();
+       }
+
+       ++argv;
+       duration = 0;
+       do {
+               duration += xatoul_range_sfx(*argv, 0, UINT_MAX-duration, sfx);
+       } while (*++argv);
+
+#else  /* CONFIG_FEATURE_FANCY_SLEEP */
+
+       if (argc != 2) {
+               bb_show_usage();
+       }
+
+       duration = xatou(argv[1]);
+
+#endif /* CONFIG_FEATURE_FANCY_SLEEP */
+
+       if (sleep(duration)) {
+               bb_perror_nomsg_and_die();
        }
 
-       if (sleep(atoi(*(++argv))) != 0)
-               perror_msg_and_die("sleep");
        return EXIT_SUCCESS;
 }