#if defined(LIBC_SCCS) && !defined(lint)static const char sccsid[] = "@(#)daemon.c	8.1 (Berkeley) 6/4/93";static const char rcsid[] = "$Id: daemon.c,v 1.1 2001/03/29 06:30:31 marka Exp $";#endif /* LIBC_SCCS and not lint *//* * 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 "port_before.h"#include <fcntl.h>#include <paths.h>#include <unistd.h>#include "port_after.h"#ifndef NEED_DAEMONint __bind_daemon__;#elseintdaemon(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);}#endif