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/* sleep - delay for a specified amount of time.
Copyright (C) 84, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <config.h>
#include <stdio.h>
#include <sys/types.h>
#include <getopt.h>
#include "version.h"
#include "system.h"
#include "error.h"
static long argdecode __P ((const char *s));
/* The name by which this program was run. */
char *program_name;
/* If nonzero, display usage information and exit. */
static int show_help;
/* If nonzero, print the version on standard output and exit. */
static int show_version;
static struct option const long_options[] =
{
{"help", no_argument, &show_help, 1},
{"version", no_argument, &show_version, 1},
{0, 0, 0, 0}
};
static void
usage (int status)
{
if (status != 0)
fprintf (stderr, _("Try `%s --help' for more information.\n"),
program_name);
else
{
printf (_("Usage: %s [OPTION]... NUMBER[SUFFIX]\n"), program_name);
printf (_("\
Pause for NUMBER seconds.\n\
SUFFIX may be s to keep seconds, m for minutes, h for hours or d for days.\n\
\n\
--help display this help and exit\n\
--version output version information and exit\n"));
}
exit (status);
}
void
main (int argc, char **argv)
{
int i;
unsigned seconds = 0;
int c;
program_name = argv[0];
while ((c = getopt_long (argc, argv, "", long_options, (int *) 0)) != EOF)
{
switch (c)
{
case 0:
break;
default:
usage (1);
}
}
if (show_version)
{
printf ("sleep - %s\n", version_string);
exit (0);
}
if (show_help)
usage (0);
if (argc == 1)
{
error (0, 0, _("too few arguments"));
usage (1);
}
for (i = 1; i < argc; i++)
seconds += argdecode (argv[i]);
sleep (seconds);
exit (0);
}
static long
argdecode (const char *s)
{
long value;
register const char *p = s;
register char c;
value = 0;
while ((c = *p++) >= '0' && c <= '9')
value = value * 10 + c - '0';
switch (c)
{
case 's':
break;
case 'm':
value *= 60;
break;
case 'h':
value *= 60 * 60;
break;
case 'd':
value *= 60 * 60 * 24;
break;
default:
p--;
}
if (*p)
error (1, 0, _("invalid time interval `%s'"), s);
return value;
}
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