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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"
-
- long argdecode ();
- void error ();
-
- /* 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);
- }
-
- 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;
- }
-