diff options
author | Nicholas Marriott <nicholas.marriott@gmail.com> | 2008-06-18 19:36:27 +0000 |
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committer | Nicholas Marriott <nicholas.marriott@gmail.com> | 2008-06-18 19:36:27 +0000 |
commit | fed1a3ba8ab6d2ee1b81ca9c2bfe8039632f47b1 (patch) | |
tree | 25e233c8b2123001646acf41ebed4f76f1bc41dc /compat | |
parent | 19b7946a85962f9458325637ff3559bca1286c6b (diff) |
compat/daemon.c
Diffstat (limited to 'compat')
-rw-r--r-- | compat/daemon.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/compat/daemon.c b/compat/daemon.c new file mode 100644 index 00000000..420f58dc --- /dev/null +++ b/compat/daemon.c @@ -0,0 +1,66 @@ +/* $OpenBSD: daemon.c,v 1.6 2005/08/08 08:05:33 espie Exp $ */ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <fcntl.h> +#include <paths.h> +#include <unistd.h> +#include <stdlib.h> + +#include "tmux.h" + +int +daemon(int nochdir, int noclose) +{ + int fd; + + switch (fork()) { + case -1: + return (-1); + case 0: + break; + default: + _exit(0); + } + + if (setsid() == -1) + return (-1); + + if (!nochdir) + (void)chdir("/"); + + if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { + (void)dup2(fd, STDIN_FILENO); + (void)dup2(fd, STDOUT_FILENO); + (void)dup2(fd, STDERR_FILENO); + if (fd > 2) + (void)close (fd); + } + return (0); +} |