--- libaitio/src/pty.c	2011/09/22 22:25:12	1.1.2.7
+++ libaitio/src/pty.c	2011/09/22 22:29:01	1.1.2.8
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: pty.c,v 1.1.2.7 2011/09/22 22:25:12 misho Exp $
+* $Id: pty.c,v 1.1.2.8 2011/09/22 22:29:01 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -76,19 +76,20 @@ ioAllocPTY(int *ptyfd, int *ttyfd, char * __restrict n
 }
 
 /*
- * ioFreeTTY() Release PTY and TTY device
- * @ptyfd = master fd, pty
+ * ioFreePTY() Release PTY and TTY device
+ * @ptyfd = master fd, pty (==-1 skip closing pty)
  * @ttyname = tty filename
  * return: none
  */
 inline void
-ioFreeTTY(int ptyfd, const char *ttyname)
+ioFreePTY(int ptyfd, const char *ttyname)
 {
 	assert(ttyname);
 	if (!ttyname)
 		return;
 
-	close(ptyfd);
+	if (ptyfd != -1)
+		close(ptyfd);
 	chown(ttyname, (uid_t) 0, (gid_t) 0);
 	chmod(ttyname, (mode_t) 0666);
 }
@@ -312,11 +313,11 @@ ioForkPTY(int *ptyfd, char * __restrict name, int name
 			return -1;
 		case 0:
 			if (ioSetOwnerTTY(name, getuid(), getgid()) == -1) {
-				ioFreeTTY(*ptyfd, name);
+				ioFreePTY(*ptyfd, name);
 				return -1;
 			}
 			if (ioSetSidTTY(&ttyfd, name) == -1) {
-				ioFreeTTY(*ptyfd, name);
+				ioFreePTY(*ptyfd, name);
 				return -1;
 			}
 			close(*ptyfd);