10Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint)
20Sstevel@tonic-gate static const char sccsid[] = "@(#)daemon.c 8.1 (Berkeley) 6/4/93";
3*11038SRao.Shoaib@Sun.COM static const char rcsid[] = "$Id: daemon.c,v 1.2 2005/04/27 04:56:10 sra Exp $";
40Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */
50Sstevel@tonic-gate
60Sstevel@tonic-gate /*
70Sstevel@tonic-gate * Copyright (c) 1990, 1993
80Sstevel@tonic-gate * The Regents of the University of California. All rights reserved.
90Sstevel@tonic-gate *
100Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without
110Sstevel@tonic-gate * modification, are permitted provided that the following conditions
120Sstevel@tonic-gate * are met:
130Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright
140Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer.
150Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright
160Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the
170Sstevel@tonic-gate * documentation and/or other materials provided with the distribution.
180Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software
190Sstevel@tonic-gate * must display the following acknowledgement:
200Sstevel@tonic-gate * This product includes software developed by the University of
210Sstevel@tonic-gate * California, Berkeley and its contributors.
220Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors
230Sstevel@tonic-gate * may be used to endorse or promote products derived from this software
240Sstevel@tonic-gate * without specific prior written permission.
250Sstevel@tonic-gate *
260Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
270Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
280Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
290Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
300Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
310Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
320Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
330Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
340Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
350Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
360Sstevel@tonic-gate * SUCH DAMAGE.
370Sstevel@tonic-gate */
380Sstevel@tonic-gate
390Sstevel@tonic-gate #include "port_before.h"
400Sstevel@tonic-gate
410Sstevel@tonic-gate #include <fcntl.h>
420Sstevel@tonic-gate #include <paths.h>
430Sstevel@tonic-gate #include <unistd.h>
440Sstevel@tonic-gate
450Sstevel@tonic-gate #include "port_after.h"
460Sstevel@tonic-gate
470Sstevel@tonic-gate #ifndef NEED_DAEMON
480Sstevel@tonic-gate int __bind_daemon__;
490Sstevel@tonic-gate #else
500Sstevel@tonic-gate
510Sstevel@tonic-gate int
daemon(int nochdir,int noclose)520Sstevel@tonic-gate daemon(int nochdir, int noclose) {
530Sstevel@tonic-gate int fd;
540Sstevel@tonic-gate
550Sstevel@tonic-gate switch (fork()) {
560Sstevel@tonic-gate case -1:
570Sstevel@tonic-gate return (-1);
580Sstevel@tonic-gate case 0:
590Sstevel@tonic-gate break;
600Sstevel@tonic-gate default:
610Sstevel@tonic-gate _exit(0);
620Sstevel@tonic-gate }
630Sstevel@tonic-gate
640Sstevel@tonic-gate if (setsid() == -1)
650Sstevel@tonic-gate return (-1);
660Sstevel@tonic-gate
670Sstevel@tonic-gate if (!nochdir)
680Sstevel@tonic-gate (void)chdir("/");
690Sstevel@tonic-gate
700Sstevel@tonic-gate if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) {
710Sstevel@tonic-gate (void)dup2(fd, STDIN_FILENO);
720Sstevel@tonic-gate (void)dup2(fd, STDOUT_FILENO);
730Sstevel@tonic-gate (void)dup2(fd, STDERR_FILENO);
740Sstevel@tonic-gate if (fd > 2)
750Sstevel@tonic-gate (void)close (fd);
760Sstevel@tonic-gate }
770Sstevel@tonic-gate return (0);
780Sstevel@tonic-gate }
790Sstevel@tonic-gate #endif
80*11038SRao.Shoaib@Sun.COM
81*11038SRao.Shoaib@Sun.COM /*! \file */
82