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 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