[inseparable changes from patch from perl5.003_12 to perl5.003_13]

 DOCUMENTATION

Subject: small doc tweaks for _12
Date: Thu, 19 Dec 1996 11:05:57 -0500
From: Roderick Schertler <roderick@gate.net>
Files: lib/UNIVERSAL.pm pod/perldiag.pod pod/perltie.pod
Msg-ID: <1826.851011557@eeyore.ibcinc.com>

    (applied based on p5p patch as commit 3314ffc68a11690bd9977cbdd7ea0601ad6ced13)

 PORTABILITY

Subject: Add missing backslash in Configure
From: Chip Salzenberg <chip@atlantic.net>
Files: Configure

 UTILITIES, LIBRARY, AND EXTENSIONS

Subject: Include libnet-1.01 instead of old Net::FTP
From: Graham Barr <Graham.Barr@tiuk.ti.com>
Files: MANIFEST lib/Net/Cmd.pm lib/Net/Domain.pm lib/Net/DummyInetd.pm lib/Net/FTP.pm lib/Net/NNTP.pm lib/Net/Netrc.pm lib/Net/POP3.pm lib/Net/SMTP.pm lib/Net/SNPP.pm lib/Net/Socket.pm lib/Net/Telnet.pm lib/Net/Time.pm pod/perlmod.pod

Subject: Use binmode when doing binary FTP
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: lib/Net/FTP.pm

Subject: Re: Open3.pm tries to close unopened file handle
Date: 18 Dec 1996 22:19:54 -0500
From: Roderick Schertler <roderick@gate.net>
Files: MANIFEST lib/IPC/Open2.pm lib/IPC/Open3.pm lib/open2.pl lib/open3.pl pod/perldiag.pod pod/perlfunc.pod t/lib/open2.t t/lib/open3.t
Msg-ID: <pzloavmd9h.fsf@eeyore.ibcinc.com>

    (applied based on p5p patch as commit 982b4e8fc47473059e209787b589853f4c8f8f9e)

Subject: Long-standing problem in Socket module
Date: Wed, 18 Dec 1996 23:18:14 -0500
From: Spider Boardman <spider@orb.nashua.nh.us>
Files: Configure Porting/Glossary config_H config_h.SH ext/Socket/Socket.pm ext/Socket/Socket.xs
Msg-ID: <199612190418.XAA07291@Orb.Nashua.NH.US>

    (applied based on p5p patch as commit 3e6a22d2723daf415793f9a4fc1b57f4d8a576fd)

Subject: flock() constants
Date: Thu, 19 Dec 1996 01:37:17 -0500
From: Roderick Schertler <roderick@gate.net>
Files: ext/Fcntl/Fcntl.pm ext/Fcntl/Fcntl.xs pod/perlfunc.pod
Msg-ID: <26669.850977437@eeyore.ibcinc.com>

    (applied based on p5p patch as commit 3dea0e15e4684f6defe2f25a16bc696b96697ac2)

1 files changed, 24 insertions, 38 deletions

diff --git a/lib/IPC/Open2.pm b/lib/IPC/Open2.pm
index 35bb0d1f16..cfd15a848b 100644
--- a/lib/IPC/Open2.pm
+++ b/lib/IPC/Open2.pm
@@ -1,7 +1,14 @@
 package IPC::Open2;
+
+use strict;
+use vars qw($VERSION @ISA @EXPORT);
+
 require 5.000;
 require Exporter;
-use Carp;
+
+$VERSION	= 1.01;
+@ISA		= qw(Exporter);
+@EXPORT		= qw(open2);
 
 =head1 NAME
 
@@ -22,6 +29,13 @@ when you try
 
     open(HANDLE, "|cmd args|");
 
+If $rdr is a string (that is, a bareword filehandle rather than a glob
+or a reference) and it begins with ">&", then the child will send output
+directly to that file handle.  If $wtr is a string that begins with
+"<&", then WTR will be closed in the parent, and the child will read
+from it directly.  In both cases, there will be a dup(2) instead of a
+pipe(2) made.
+
 open2() returns the process ID of the child process.  It doesn't return on
 failure: it just raises an exception matching C</^open2:/>.
 
@@ -44,13 +58,11 @@ read and write a line from it.
 
 =head1 SEE ALSO
 
-See L<open3> for an alternative that handles STDERR as well.
+See L<IPC::Open3> for an alternative that handles STDERR as well.  This
+function is really just a wrapper around open3().
 
 =cut
 
-@ISA = qw(Exporter);
-@EXPORT = qw(open2);
-
 # &open2: tom christiansen, <tchrist@convex.com>
 #
 # usage: $pid = open2('rdr', 'wtr', 'some cmd and args');
@@ -67,41 +79,15 @@ See L<open3> for an alternative that handles STDERR as well.
 # 
 # abort program if
 #	rdr or wtr are null
-# 	pipe or fork or exec fails
+# 	a system call fails
 
-$fh = 'FHOPEN000';  # package static in case called more than once
+require IPC::Open3;
 
 sub open2 {
-    local($kidpid);
-    local($dad_rdr, $dad_wtr, @cmd) = @_;
-
-    $dad_rdr ne '' 		|| croak "open2: rdr should not be null";
-    $dad_wtr ne '' 		|| croak "open2: wtr should not be null";
-
-    # force unqualified filehandles into callers' package
-    local($package) = caller;
-    $dad_rdr =~ s/^([^']+$)/$package'$1/ unless ref $dad_rdr;
-    $dad_wtr =~ s/^([^']+$)/$package'$1/ unless ref $dad_wtr;
-
-    local($kid_rdr) = ++$fh;
-    local($kid_wtr) = ++$fh;
-
-    pipe($dad_rdr, $kid_wtr) 	|| croak "open2: pipe 1 failed: $!";
-    pipe($kid_rdr, $dad_wtr) 	|| croak "open2: pipe 2 failed: $!";
-
-    if (($kidpid = fork) < 0) {
-	croak "open2: fork failed: $!";
-    } elsif ($kidpid == 0) {
-	close $dad_rdr; close $dad_wtr;
-	open(STDIN,  "<&$kid_rdr");
-	open(STDOUT, ">&$kid_wtr");
-	warn "execing @cmd\n" if $debug;
-	exec @cmd
-	    or croak "open2: exec of @cmd failed";   
-    } 
-    close $kid_rdr; close $kid_wtr;
-    select((select($dad_wtr), $| = 1)[0]); # unbuffer pipe
-    $kidpid;
+    my ($read, $write, @cmd) = @_;
+    local $Carp::CarpLevel = $Carp::CarpLevel + 1;
+    return IPC::Open3::_open3('open2', scalar caller,
+				$write, $read, '>&STDERR', @cmd);
 }
-1; # so require is happy
 
+1