diff options
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/apple/daemon.c | 92 | ||||
| -rw-r--r-- | contrib/apple/daemon.h | 20 |
2 files changed, 112 insertions, 0 deletions
diff --git a/contrib/apple/daemon.c b/contrib/apple/daemon.c new file mode 100644 index 00000000000..9389201a1af --- /dev/null +++ b/contrib/apple/daemon.c @@ -0,0 +1,92 @@ +/* + Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + + Based on http://www.opensource.apple.com/source/Libc/Libc-583/gen/FreeBSD/daemon.c + */ + +/*- + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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 <errno.h> +#include <fcntl.h> +#include <paths.h> +#include <signal.h> +#include <unistd.h> + +int +os_daemon(nochdir, noclose) + int nochdir, noclose; +{ + struct sigaction osa, sa; + int fd; + pid_t newgrp; + int oerrno; + int osa_ok; + + /* A SIGHUP may be thrown when the parent exits below. */ + sigemptyset(&sa.sa_mask); + sa.sa_handler = SIG_IGN; + sa.sa_flags = 0; + osa_ok = sigaction(SIGHUP, &sa, &osa); + + switch (fork()) { + case -1: + return (-1); + case 0: + break; + default: + _exit(0); + } + + newgrp = setsid(); + oerrno = errno; + if (osa_ok != -1) + sigaction(SIGHUP, &osa, NULL); + + if (newgrp == -1) { + errno = oerrno; + 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); +} diff --git a/contrib/apple/daemon.h b/contrib/apple/daemon.h new file mode 100644 index 00000000000..7a2824b6a47 --- /dev/null +++ b/contrib/apple/daemon.h @@ -0,0 +1,20 @@ +/* + Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + This file is part of GlusterFS. + + GlusterFS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3 of the License, + or (at your option) any later version. + + GlusterFS is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see + <http://www.gnu.org/licenses/>. +*/ + +int os_daemon(int nochdir, int noclose); |