diff options
Diffstat (limited to 'other/openssh-reverse/bsd-daemon.c')
| -rw-r--r-- | other/openssh-reverse/bsd-daemon.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/other/openssh-reverse/bsd-daemon.c b/other/openssh-reverse/bsd-daemon.c new file mode 100644 index 0000000..fe92b76 --- /dev/null +++ b/other/openssh-reverse/bsd-daemon.c | |||
| @@ -0,0 +1,81 @@ | |||
| 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 | |||
| 34 | #include "config.h" | ||
| 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 | |||
| 42 | #include <fcntl.h> | ||
| 43 | #include <unistd.h> | ||
| 44 | |||
| 45 | #ifdef HAVE_PATHS_H | ||
| 46 | # include <paths.h> | ||
| 47 | #endif | ||
| 48 | |||
| 49 | int | ||
| 50 | daemon(nochdir, noclose) | ||
| 51 | int nochdir, noclose; | ||
| 52 | { | ||
| 53 | int fd; | ||
| 54 | |||
| 55 | switch (fork()) { | ||
| 56 | case -1: | ||
| 57 | return (-1); | ||
| 58 | case 0: | ||
| 59 | break; | ||
| 60 | default: | ||
| 61 | _exit(0); | ||
| 62 | } | ||
| 63 | |||
| 64 | if (setsid() == -1) | ||
| 65 | return (-1); | ||
| 66 | |||
| 67 | if (!nochdir) | ||
| 68 | (void)chdir("/"); | ||
| 69 | |||
| 70 | if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { | ||
| 71 | (void)dup2(fd, STDIN_FILENO); | ||
| 72 | (void)dup2(fd, STDOUT_FILENO); | ||
| 73 | (void)dup2(fd, STDERR_FILENO); | ||
| 74 | if (fd > 2) | ||
| 75 | (void)close (fd); | ||
| 76 | } | ||
| 77 | return (0); | ||
| 78 | } | ||
| 79 | |||
| 80 | #endif /* !HAVE_DAEMON */ | ||
| 81 | |||
