1 /* sleep - delay for a specified amount of time.
2 Copyright (C) 84, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
20 #include <sys/types.h>
27 static long argdecode __P ((const char *s));
29 /* The name by which this program was run. */
32 /* If nonzero, display usage information and exit. */
35 /* If nonzero, print the version on standard output and exit. */
36 static int show_version;
38 static struct option const long_options[] =
40 {"help", no_argument, &show_help, 1},
41 {"version", no_argument, &show_version, 1},
49 fprintf (stderr, _("Try `%s --help' for more information.\n"),
53 printf (_("Usage: %s [OPTION]... NUMBER[SUFFIX]\n"), program_name);
55 Pause for NUMBER seconds.\n\
56 SUFFIX may be s to keep seconds, m for minutes, h for hours or d for days.\n\
58 --help display this help and exit\n\
59 --version output version information and exit\n"));
65 main (int argc, char **argv)
71 program_name = argv[0];
73 while ((c = getopt_long (argc, argv, "", long_options, (int *) 0)) != EOF)
87 printf ("sleep - %s\n", version_string);
96 error (0, 0, _("too few arguments"));
100 for (i = 1; i < argc; i++)
101 seconds += argdecode (argv[i]);
109 argdecode (const char *s)
112 register const char *p = s;
116 while ((c = *p++) >= '0' && c <= '9')
117 value = value * 10 + c - '0';
130 value *= 60 * 60 * 24;
137 error (1, 0, _("invalid time interval `%s'"), s);