Annotation of prex/usr/bin/sleep/sleep.c, Revision 1.1.1.1
1.1 nbrk 1: /*
2: * Copyright (c) 1988, 1993, 1994
3: * The Regents of the University of California. All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. Neither the name of the University nor the names of its contributors
14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: */
29:
30: #include <stdio.h>
31: #include <stdlib.h>
32: #include <unistd.h>
33:
34: #ifdef CMDBOX
35: #define main(argc, argv) sleep_main(argc, argv)
36: #endif
37:
38: static void usage(void);
39:
40: int
41: main(int argc, char *argv[])
42: {
43: int ch, secs;
44:
45: while ((ch = getopt(argc, argv, "")) != -1)
46: switch(ch) {
47: case '?':
48: default:
49: usage();
50: }
51: argc -= optind;
52: argv += optind;
53:
54: if (argc != 1)
55: usage();
56:
57: if ((secs = atoi(*argv)) > 0)
58: (void)sleep(secs);
59: exit(0);
60: }
61:
62: static void
63: usage(void)
64: {
65:
66: fprintf(stderr, "usage: sleep seconds\n");
67: exit(1);
68: }
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