- 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 53fe5a0c2bf8b6085a208ee9c83bb2b53a54c627..b89b0fe9ca488ac59671712cfa91823b599b9d27 100644 (file)
--- a/coreutils/sleep.c
+++ b/coreutils/sleep.c
@@ -1,20 +1,68 @@
-#include "internal.h"
-#include <stdio.h>
+/* vi: set sw=4 ts=4: */
+/*
+ * sleep implementation for busybox
+ *
+ * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
 
-const char     sleep_usage[] = " NUMBER\n"
-"Pause for NUMBER seconds.\n";
+/* 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 */
 
-extern int
-sleep_main(int argc, char * * argv)
+/* 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 <stdlib.h>
+#include <limits.h>
+#include <unistd.h>
+#include "busybox.h"
+
+#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) == '-') ) {
-           fprintf(stderr, "Usage: %s %s", *argv, sleep_usage);
-           exit(FALSE);
+       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( "sleep");
-               exit (FALSE);
-       } else
-               exit (TRUE);
+       return EXIT_SUCCESS;
 }