/usr/share/perl5/IPC/Run/SafeHandles.pm is in libipc-run-safehandles-perl 0.04-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | package IPC::Run::SafeHandles;
use warnings;
use strict;
use IO::Handle ();
use List::MoreUtils 'any';
=head1 NAME
IPC::Run::SafeHandles - Use IPC::Run and IPC::Run3 safely
=cut
our $VERSION = '0.04';
=head1 SYNOPSIS
use IPC::Run::SafeHandles;
=head1 DESCRIPTION
L<IPC::Run> and L<IPC::Run3> are both very upset when you try to use
them under environments where you have STDOUT and/or STDERR tied to
something else, such as under fastcgi.
The module adds safe-guarding code when you call L<IPC::Run> or
L<IPC::Run3> under such environment to make sure it always works.
If you intend to release your code to work under normal envionrment
as well as under fastcgi, simply use this module I<after> the C<IPC>
modules are loaded in your code.
=cut
my $wrapper_context = [];
sub _wrap_it {
no strict 'refs';
my $typeglob = shift;
my $caller = shift;
my $original = *$typeglob{CODE};
my $unwrap = 0;
my $wrapper = sub {
goto &$original unless $ENV{FCGI_ROLE}
|| any { $_ eq 'via'} PerlIO::get_layers(*STDOUT), PerlIO::get_layers(*STDERR);
my $stdout = IO::Handle->new;
$stdout->fdopen( 1, 'w' );
local *STDOUT = $stdout;
my $stderr = IO::Handle->new;
$stderr->fdopen( 2, 'w' );
local *STDERR = $stderr;
$original->(@_);
};
no warnings 'redefine';
my $callerglob = $typeglob; $callerglob =~ s/IPC::Run3?/$caller/;
*{$typeglob} = $wrapper;
*{$callerglob} = $wrapper;
push @$wrapper_context,
bless(sub { no warnings 'redefine';
*{$callerglob} = $original;
*{$typeglob} = $original }, __PACKAGE__);
}
sub import {
my $caller = caller();
_wrap_it('IPC::Run::run', $caller) if $INC{'IPC/Run.pm'};
_wrap_it('IPC::Run3::run3', $caller) if $INC{'IPC/Run3.pm'};
unless (@$wrapper_context) {
Carp::carp "Use of IPC::Run::SafeHandles without using IPC::Run or IPC::Run3 first";
}
}
=head2 unimport
When unimport, the original L<IPC::Run> and/or L<IPC::Run3> functions
are restored.
=cut
sub unimport {
$wrapper_context = [];
}
sub DESTROY { $_[0]->() }
=head1 AUTHOR
Chia-liang Kao, C<< <clkao at bestpractical.com> >>
=head1 BUGS
Please report any bugs or feature requests to
C<bug-ipc-run-safehandles at rt.cpan.org>, or through the web interface at
L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=IPC-Run-SafeHandles>.
I will be notified, and then you'll automatically be notified of progress on
your bug as I make changes.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc IPC::Run::SafeHandles
You can also look for information at:
=over 4
=item * AnnoCPAN: Annotated CPAN documentation
L<http://annocpan.org/dist/IPC-Run-SafeHandles>
=item * CPAN Ratings
L<http://cpanratings.perl.org/d/IPC-Run-SafeHandles>
=item * RT: CPAN's request tracker
L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=IPC-Run-SafeHandles>
=item * Search CPAN
L<http://search.cpan.org/dist/IPC-Run-SafeHandles>
=back
=head1 ACKNOWLEDGEMENTS
=head1 COPYRIGHT & LICENSE
Copyright 2007 Chia-liang Kao, all rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=cut
1; # End of IPC::Run::SafeHandles
|