1 /* sleep - delay for a specified amount of time.
2 Copyright (C) 1984, 1991 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. */
19 #include <sys/types.h>
25 /* The name by which this program was run. */
36 program_name = argv[0];
40 fprintf (stderr, "Usage: %s number[smhd]...\n", argv[0]);
44 for (i = 1; i < argc; i++)
45 seconds += argdecode (argv[i]);
61 while ((c = *p++) >= '0' && c <= '9')
62 value = value * 10 + c - '0';
75 value *= 60 * 60 * 24;
82 error (1, 0, "invalid time interval `%s'", s);