2N/A/*-
2N/A * Copyright (c) 1990 The Regents of the University of California.
2N/A * All rights reserved.
2N/A *
2N/A * Redistribution and use in source and binary forms, with or without
2N/A * modification, are permitted provided that the following conditions
2N/A * are met:
2N/A * 1. Redistributions of source code must retain the above copyright
2N/A * notice, this list of conditions and the following disclaimer.
2N/A * 2. Redistributions in binary form must reproduce the above copyright
2N/A * notice, this list of conditions and the following disclaimer in the
2N/A * documentation and/or other materials provided with the distribution.
2N/A * 3. All advertising materials mentioning features or use of this software
2N/A * must display the following acknowledgement:
2N/A * This product includes software developed by the University of
2N/A * California, Berkeley and its contributors.
2N/A * 4. Neither the name of the University nor the names of its contributors
2N/A * may be used to endorse or promote products derived from this software
2N/A * without specific prior written permission.
2N/A *
2N/A * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2N/A * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2N/A * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2N/A * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2N/A * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2N/A * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2N/A * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2N/A * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2N/A * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2N/A * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2N/A * SUCH DAMAGE.
2N/A */
2N/A
2N/A#include "k5-int.h"
2N/A#include <fcntl.h>
2N/A#include <sys/types.h>
2N/A#include <sys/file.h>
2N/A#include <unistd.h>
2N/A#ifdef HAVE_PATHS_H
2N/A#include <paths.h>
2N/A#endif
2N/A
2N/A#ifndef _PATH_DEVNULL
2N/A#define _PATH_DEVNULL "/dev/null"
2N/A#endif
2N/A
2N/Aint
2N/Adaemon(nochdir, noclose)
2N/A int nochdir, noclose;
2N/A{
2N/A int cpid;
2N/A
2N/A if ((cpid = fork()) == -1)
2N/A return (-1);
2N/A if (cpid)
2N/A exit(0);
2N/A#ifdef HAVE_SETSID
2N/A (void) setsid();
2N/A#else
2N/A#ifndef TIOCNOTTY
2N/A setpgrp();
2N/A#else
2N/A {
2N/A int n;
2N/A
2N/A /*
2N/A * The open below may hang on pseudo ttys if the person
2N/A * who starts named logs out before this point. Thus,
2N/A * the need for the timer.
2N/A */
2N/A alarm(120);
2N/A n = open("/dev/tty", O_RDWR);
2N/A alarm(0);
2N/A if (n > 0) {
2N/A (void) ioctl(n, TIOCNOTTY, (char *)NULL);
2N/A (void) close(n);
2N/A }
2N/A }
2N/A#endif
2N/A#endif
2N/A if (!nochdir)
2N/A (void) chdir("/");
2N/A if (!noclose) {
2N/A int devnull = open(_PATH_DEVNULL, O_RDWR, 0);
2N/A
2N/A if (devnull != -1) {
2N/A (void) dup2(devnull, 0);
2N/A (void) dup2(devnull, 1);
2N/A (void) dup2(devnull, 2);
2N/A if (devnull > 2)
2N/A (void) close(devnull);
2N/A }
2N/A }
2N/A return (0);
2N/A}