Use posix_openpt() instead of calling openpty() to allocate a PTY

and open the slave TTY, and calling unlockpt() afterwards.

PR:		128941
Submitted by:	ed
Reported by:	Gerhard Gonter <g.gonter@ieee.org>

devel/p5-IO-Tty/Makefile

@@ -7,6 +7,7 @@
 
 PORTNAME=	IO-Tty
 PORTVERSION=	1.07
+PORTREVISION=	1
 CATEGORIES=	devel perl5
 MASTER_SITES=	CPAN
 PKGNAMEPREFIX=	p5-

devel/p5-IO-Tty/files/patch-Makefile.PL

@@ -0,0 +1,39 @@
+--- Makefile.PL
++++ Makefile.PL
+@@ -95,16 +95,17 @@
+ 
+ # checking for various functions
+ 
+-my %funcs = (ttyname   => "",
+-	     openpty   => "-lutil",
+-	     _getpty   => "",
+-	     strlcpy   => "",
+-	     sigaction => "",
+-	     grantpt   => "",
+-	     unlockpt  => "",
+-	     getpt     => "",
+-	     ptsname   => "",
+-	     ptsname_r => "",
++my %funcs = (ttyname      => "",
++	     openpty      => "-lutil",
++	     _getpty      => "",
++	     strlcpy      => "",
++	     sigaction    => "",
++	     grantpt      => "",
++	     unlockpt     => "",
++	     getpt        => "",
++	     posix_openpt => "",
++	     ptsname      => "",
++	     ptsname_r    => "",
+ 	    );
+ 
+ foreach my $f (sort keys %funcs) {
+@@ -290,7 +291,7 @@
+     msg => "WARNING!  Neither ptsname() nor ptsname_r() could be found,\n so we cannot use a high-level interface like openpty().\n",
+    },
+    {
+-    defines => [qw"-DHAVE_DEV_PTMX -DHAVE_DEV_PTYM_CLONE -DHAVE_DEV_PTC -DHAVE_DEV_PTMX_BSD -DHAVE__GETPTY -DHAVE_OPENPTY -DHAVE_GETPT"],
++    defines => [qw"-DHAVE_DEV_PTMX -DHAVE_DEV_PTYM_CLONE -DHAVE_DEV_PTC -DHAVE_DEV_PTMX_BSD -DHAVE__GETPTY -DHAVE_OPENPTY -DHAVE_GETPT -DHAVE_POSIX_OPENPT"],
+     msg => "No high-level lib or clone device has been found, we will use BSD-style ptys.\n",
+    },
+   ) {

devel/p5-IO-Tty/files/patch-Tty.xs

@@ -0,0 +1,21 @@
+--- Tty.xs
++++ Tty.xs
+@@ -453,6 +453,18 @@
+ #if defined(HAVE_PTSNAME) || defined(HAVE_PTSNAME_R)
+ /* we don't need to try these if we don't have a way to get the pty names */
+ 
++#if defined(HAVE_POSIX_OPENPT)
++#if PTY_DEBUG
++	if (print_debug)
++	  fprintf(stderr, "trying posix_openpt()...\n");
++#endif
++	*ptyfd = posix_openpt(O_RDWR|O_NOCTTY);
++	if (*ptyfd >= 0 && open_slave(ptyfd, ttyfd, namebuf, namebuflen))
++	    break;		/* got one */
++	if (PL_dowarn)
++	    warn("pty_allocate(nonfatal): posix_openpt(): %.100s", strerror(errno));
++#endif /* defined(HAVE_POSIX_OPENPT) */
++
+ #if defined(HAVE_GETPT)
+ 	/* glibc defines this */
+ #if PTY_DEBUG