package IPC::Open2;
use strict;
require 5.006;
use Exporter 'import';
our $VERSION = 1.06;
our @EXPORT = qw(open2);
# &open2: tom christiansen, <[email protected]>
#
# usage: $pid = open2('rdr', 'wtr', 'some cmd and args');
# or $pid = open2('rdr', 'wtr', 'some', 'cmd', 'and', 'args');
#
# spawn the given $cmd and connect $rdr for
# reading and $wtr for writing. return pid
# of child, or 0 on failure.
#
# WARNING: this is dangerous, as you may block forever
# unless you are very careful.
#
# $wtr is left unbuffered.
#
# abort program if
# rdr or wtr are null
# a system call fails
require IPC::Open3;
sub open2 {
local $Carp::CarpLevel = $Carp::CarpLevel + 1;
return IPC::Open3::_open3('open2', $_[1], $_[0], '>&STDERR', @_[2 .. $#_]);
}
1