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beb43d31 | 1 | /*- |
2 | * Copyright (c) 1990, 1993 | |
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. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
0b65b628 | 34 | #include "includes.h" |
beb43d31 | 35 | |
36 | #ifndef HAVE_DAEMON | |
37 | ||
38 | #if defined(LIBC_SCCS) && !defined(lint) | |
39 | static char rcsid[] = "$OpenBSD: daemon.c,v 1.2 1996/08/19 08:22:13 tholo Exp $"; | |
40 | #endif /* LIBC_SCCS and not lint */ | |
41 | ||
beb43d31 | 42 | int |
43 | daemon(nochdir, noclose) | |
44 | int nochdir, noclose; | |
45 | { | |
46 | int fd; | |
47 | ||
48 | switch (fork()) { | |
49 | case -1: | |
50 | return (-1); | |
51 | case 0: | |
ffb8d130 | 52 | #ifdef HAVE_CYGWIN |
53 | register_9x_service(); | |
54 | #endif | |
beb43d31 | 55 | break; |
56 | default: | |
3c62e7eb | 57 | #ifdef HAVE_CYGWIN |
58 | /* | |
59 | * This sleep avoids a race condition which kills the | |
60 | * child process if parent is started by a NT/W2K service. | |
61 | */ | |
62 | sleep(1); | |
63 | #endif | |
beb43d31 | 64 | _exit(0); |
65 | } | |
66 | ||
67 | if (setsid() == -1) | |
68 | return (-1); | |
69 | ||
70 | if (!nochdir) | |
71 | (void)chdir("/"); | |
72 | ||
73 | if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { | |
74 | (void)dup2(fd, STDIN_FILENO); | |
75 | (void)dup2(fd, STDOUT_FILENO); | |
76 | (void)dup2(fd, STDERR_FILENO); | |
77 | if (fd > 2) | |
78 | (void)close (fd); | |
79 | } | |
80 | return (0); | |
81 | } | |
82 | ||
83 | #endif /* !HAVE_DAEMON */ | |
84 |