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util/pty.c Libc-1725.40.4 /dev/null
--- Libc/Libc-1725.40.4/util/pty.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (c) 1999, 2007 Apple Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1990, 1993, 1994
- *	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 <sys/types.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <grp.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <termios.h>
-#include <unistd.h>
-#include <util.h>
-
-int openpty(int *aprimary, int *areplica, char *name, struct termios *termp, struct winsize *winp)
-{
-	int primary, replica;
-	char rname[__PTYNAMELEN];
-	int errno_saved;
-
-	if ((primary = posix_openpt(O_RDWR|O_NOCTTY)) < 0)
-		return -1;
-	if (grantpt(primary) < 0 || unlockpt(primary) < 0
-	    || ptsname_r(primary, rname, sizeof(rname)) == -1
-	    || (replica = open(rname, O_RDWR|O_NOCTTY, 0)) < 0) {
-		errno_saved = errno;
-		(void) close(primary);
-		errno = errno_saved;
-		return -1;
-	}
-	*aprimary = primary;
-	*areplica = replica;
-	if (name)
-		strlcpy(name, rname, __PTYNAMELEN);
-	if (termp)
-		(void) tcsetattr(replica, TCSAFLUSH, termp);
-	if (winp)
-		(void) ioctl(replica, TIOCSWINSZ, (char *)winp);
-	return (0);
-}
-
-int
-forkpty(int *aprimary, char *name, struct termios *termp, struct winsize *winp)
-{
-	int primary, replica, pid;
-	int errno_saved;
-
-	if (openpty(&primary, &replica, name, termp, winp) == -1)
-		return (-1);
-	switch (pid = fork()) {
-	case -1:
-		errno_saved = errno;
-		(void) close(primary);
-		(void) close(replica);
-		errno = errno_saved;
-		return (-1);
-	case 0:
-		/* 
-		 * child
-		 */
-		(void) close(primary);
-		/*
-		 * 4300297: login_tty() may fail to set the controlling tty.
-		 * Since we have already forked, the best we can do is to 
-		 * dup the replica as if login_tty() succeeded.
-		 */
-		if (login_tty(replica) < 0) {
-			syslog(LOG_ERR, "forkpty: login_tty could't make controlling tty");
-			(void) dup2(replica, 0);
-			(void) dup2(replica, 1);
-			(void) dup2(replica, 2);
-			if (replica > 2)
-				(void) close(replica);
-		}
-		return (0);
-	}
-	/*
-	 * parent
-	 */
-	*aprimary = primary;
-	(void) close(replica);
-	return (pid);
-}