diff options
Diffstat (limited to 'third_party/heimdal/lib/roken/daemon.c')
| -rw-r--r-- | third_party/heimdal/lib/roken/daemon.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/roken/daemon.c b/third_party/heimdal/lib/roken/daemon.c new file mode 100644 index 0000000..6128beb --- /dev/null +++ b/third_party/heimdal/lib/roken/daemon.c @@ -0,0 +1,80 @@ +/*- + * 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)daemon.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <config.h> + +#ifndef HAVE_DAEMON + +#ifdef HAVE_FCNTL_H +#include <fcntl.h> +#endif +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include "roken.h" + +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL +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) + chdir("/"); + + if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { + dup2(fd, STDIN_FILENO); + dup2(fd, STDOUT_FILENO); + dup2(fd, STDERR_FILENO); + if (fd > 2) + (void) close(fd); + } + return (0); +} + +#endif /* HAVE_DAEMON */ |