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/* sleep - delay for a specified amount of time.
Copyright (C) 1984, 1991 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 <stdio.h>
#include <sys/types.h>
#include "system.h"
void error ();
static long argdecode ();
/* The name by which this program was run. */
char *program_name;
void
main (argc, argv)
int argc;
char **argv;
{
int i;
unsigned seconds = 0;
program_name = argv[0];
if (argc == 1)
{
fprintf (stderr, "Usage: %s number[smhd]...\n", argv[0]);
exit (1);
}
for (i = 1; i < argc; i++)
seconds += argdecode (argv[i]);
sleep (seconds);
exit (0);
}
static long
argdecode (s)
char *s;
{
long value;
register 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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