Initial import of Perl5. The king is dead; long live the king!

10 files changed, 2452 insertions, 0 deletions

diff --git a/contrib/perl5/ext/IO/IO.pm b/contrib/perl5/ext/IO/IO.pm
new file mode 100644
index 0000000..4d4c81c
--- /dev/null
+++ b/contrib/perl5/ext/IO/IO.pm
@@ -0,0 +1,36 @@
+#
+
+package IO;
+
+=head1 NAME
+
+IO - load various IO modules
+
+=head1 SYNOPSIS
+
+    use IO;
+
+=head1 DESCRIPTION
+
+C<IO> provides a simple mechanism to load some of the IO modules at one go.
+Currently this includes:
+
+      IO::Handle
+      IO::Seekable
+      IO::File
+      IO::Pipe
+      IO::Socket
+
+For more information on any of these modules, please see its respective
+documentation.
+
+=cut
+
+use IO::Handle;
+use IO::Seekable;
+use IO::File;
+use IO::Pipe;
+use IO::Socket;
+
+1;
+
diff --git a/contrib/perl5/ext/IO/IO.xs b/contrib/perl5/ext/IO/IO.xs
new file mode 100644
index 0000000..a434cca
--- /dev/null
+++ b/contrib/perl5/ext/IO/IO.xs
@@ -0,0 +1,292 @@
+#include "EXTERN.h"
+#define PERLIO_NOT_STDIO 1
+#include "perl.h"
+#include "XSUB.h"
+
+#ifdef I_UNISTD
+#  include <unistd.h>
+#endif
+#ifdef I_FCNTL
+#if defined(__GNUC__) && defined(__cplusplus) && defined(WIN32)
+#define _NO_OLDNAMES
+#endif 
+#  include <fcntl.h>
+#if defined(__GNUC__) && defined(__cplusplus) && defined(WIN32)
+#undef _NO_OLDNAMES
+#endif 
+
+#endif
+
+#ifdef PerlIO
+typedef int SysRet;
+typedef PerlIO * InputStream;
+typedef PerlIO * OutputStream;
+#else
+#define PERLIO_IS_STDIO 1
+typedef int SysRet;
+typedef FILE * InputStream;
+typedef FILE * OutputStream;
+#endif
+
+static int
+not_here(char *s)
+{
+    croak("%s not implemented on this architecture", s);
+    return -1;
+}
+
+static bool
+constant(char *name, IV *pval)
+{
+    switch (*name) {
+    case '_':
+	if (strEQ(name, "_IOFBF"))
+#ifdef _IOFBF
+	    { *pval = _IOFBF; return TRUE; }
+#else
+	    return FALSE;
+#endif
+	if (strEQ(name, "_IOLBF"))
+#ifdef _IOLBF
+	    { *pval = _IOLBF; return TRUE; }
+#else
+	    return FALSE;
+#endif
+	if (strEQ(name, "_IONBF"))
+#ifdef _IONBF
+	    { *pval = _IONBF; return TRUE; }
+#else
+	    return FALSE;
+#endif
+	break;
+    case 'S':
+	if (strEQ(name, "SEEK_SET"))
+#ifdef SEEK_SET
+	    { *pval = SEEK_SET; return TRUE; }
+#else
+	    return FALSE;
+#endif
+	if (strEQ(name, "SEEK_CUR"))
+#ifdef SEEK_CUR
+	    { *pval = SEEK_CUR; return TRUE; }
+#else
+	    return FALSE;
+#endif
+	if (strEQ(name, "SEEK_END"))
+#ifdef SEEK_END
+	    { *pval = SEEK_END; return TRUE; }
+#else
+	    return FALSE;
+#endif
+	break;
+    }
+
+    return FALSE;
+}
+
+
+MODULE = IO	PACKAGE = IO::Seekable	PREFIX = f
+
+SV *
+fgetpos(handle)
+	InputStream	handle
+    CODE:
+	if (handle) {
+	    Fpos_t pos;
+#ifdef PerlIO
+	    PerlIO_getpos(handle, &pos);
+#else
+	    fgetpos(handle, &pos);
+#endif
+	    ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
+	}
+	else {
+	    ST(0) = &PL_sv_undef;
+	    errno = EINVAL;
+	}
+
+SysRet
+fsetpos(handle, pos)
+	InputStream	handle
+	SV *		pos
+    CODE:
+	char *p;
+	if (handle && (p = SvPVx(pos, PL_na)) && PL_na == sizeof(Fpos_t))
+#ifdef PerlIO
+	    RETVAL = PerlIO_setpos(handle, (Fpos_t*)p);
+#else
+	    RETVAL = fsetpos(handle, (Fpos_t*)p);
+#endif
+	else {
+	    RETVAL = -1;
+	    errno = EINVAL;
+	}
+    OUTPUT:
+	RETVAL
+
+MODULE = IO	PACKAGE = IO::File	PREFIX = f
+
+SV *
+new_tmpfile(packname = "IO::File")
+    char *		packname
+    PREINIT:
+	OutputStream fp;
+	GV *gv;
+    CODE:
+#ifdef PerlIO
+	fp = PerlIO_tmpfile();
+#else
+	fp = tmpfile();
+#endif
+	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
+	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
+	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
+	    ST(0) = sv_2mortal(newRV((SV*)gv));
+	    sv_bless(ST(0), gv_stashpv(packname, TRUE));
+	    SvREFCNT_dec(gv);	/* undo increment in newRV() */
+	}
+	else {
+	    ST(0) = &PL_sv_undef;
+	    SvREFCNT_dec(gv);
+	}
+
+MODULE = IO	PACKAGE = IO::Handle	PREFIX = f
+
+SV *
+constant(name)
+	char *		name
+    CODE:
+	IV i;
+	if (constant(name, &i))
+	    ST(0) = sv_2mortal(newSViv(i));
+	else
+	    ST(0) = &PL_sv_undef;
+
+int
+ungetc(handle, c)
+	InputStream	handle
+	int		c
+    CODE:
+	if (handle)
+#ifdef PerlIO
+	    RETVAL = PerlIO_ungetc(handle, c);
+#else
+	    RETVAL = ungetc(c, handle);
+#endif
+	else {
+	    RETVAL = -1;
+	    errno = EINVAL;
+	}
+    OUTPUT:
+	RETVAL
+
+int
+ferror(handle)
+	InputStream	handle
+    CODE:
+	if (handle)
+#ifdef PerlIO
+	    RETVAL = PerlIO_error(handle);
+#else
+	    RETVAL = ferror(handle);
+#endif
+	else {
+	    RETVAL = -1;
+	    errno = EINVAL;
+	}
+    OUTPUT:
+	RETVAL
+
+int
+clearerr(handle)
+	InputStream	handle
+    CODE:
+	if (handle) {
+#ifdef PerlIO
+	    PerlIO_clearerr(handle);
+#else
+	    clearerr(handle);
+#endif
+	    RETVAL = 0;
+	}
+	else {
+	    RETVAL = -1;
+	    errno = EINVAL;
+	}
+    OUTPUT:
+	RETVAL
+
+int
+untaint(handle)
+       SV *	handle
+    CODE:
+#ifdef IOf_UNTAINT
+	IO * io;
+	io = sv_2io(handle);
+	if (io) {
+	    IoFLAGS(io) |= IOf_UNTAINT;
+	    RETVAL = 0;
+	}
+        else {
+#endif
+	    RETVAL = -1;
+	    errno = EINVAL;
+#ifdef IOf_UNTAINT
+	}
+#endif
+    OUTPUT:
+	RETVAL
+
+SysRet
+fflush(handle)
+	OutputStream	handle
+    CODE:
+	if (handle)
+#ifdef PerlIO
+	    RETVAL = PerlIO_flush(handle);
+#else
+	    RETVAL = Fflush(handle);
+#endif
+	else {
+	    RETVAL = -1;
+	    errno = EINVAL;
+	}
+    OUTPUT:
+	RETVAL
+
+void
+setbuf(handle, buf)
+	OutputStream	handle
+	char *		buf = SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0;
+    CODE:
+	if (handle)
+#ifdef PERLIO_IS_STDIO
+	    setbuf(handle, buf);
+#else
+	    not_here("IO::Handle::setbuf");
+#endif
+
+SysRet
+setvbuf(handle, buf, type, size)
+	OutputStream	handle
+	char *		buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
+	int		type
+	int		size
+    CODE:
+/* Should check HAS_SETVBUF once Configure tests for that */
+#if defined(PERLIO_IS_STDIO) && defined(_IOFBF)
+	if (!handle)			/* Try input stream. */
+	    handle = IoIFP(sv_2io(ST(0)));
+	if (handle)
+	    RETVAL = setvbuf(handle, buf, type, size);
+	else {
+	    RETVAL = -1;
+	    errno = EINVAL;
+	}
+#else
+	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
+#endif
+    OUTPUT:
+	RETVAL
+
+
diff --git a/contrib/perl5/ext/IO/Makefile.PL b/contrib/perl5/ext/IO/Makefile.PL
new file mode 100644
index 0000000..4a34be6
--- /dev/null
+++ b/contrib/perl5/ext/IO/Makefile.PL
@@ -0,0 +1,8 @@
+use ExtUtils::MakeMaker;
+WriteMakefile(
+    NAME => 'IO',
+    MAN3PODS   => ' ',			# Pods will be built by installman.
+    XSPROTOARG => '-noprototypes', 	# XXX remove later?
+    VERSION_FROM => 'lib/IO/Handle.pm',
+    XS_VERSION => 1.15
+);
diff --git a/contrib/perl5/ext/IO/README b/contrib/perl5/ext/IO/README
new file mode 100644
index 0000000..e855afa
--- /dev/null
+++ b/contrib/perl5/ext/IO/README
@@ -0,0 +1,4 @@
+This directory contains files from the IO distribution maintained by
+Graham Barr <bodg@tiuk.ti.com>. If you find that you have to modify
+any files in this directory then please forward him a patch for only
+the files in this directory.
diff --git a/contrib/perl5/ext/IO/lib/IO/File.pm b/contrib/perl5/ext/IO/lib/IO/File.pm
new file mode 100644
index 0000000..de7fabc
--- /dev/null
+++ b/contrib/perl5/ext/IO/lib/IO/File.pm
@@ -0,0 +1,167 @@
+#
+
+package IO::File;
+
+=head1 NAME
+
+IO::File - supply object methods for filehandles
+
+=head1 SYNOPSIS
+
+    use IO::File;
+
+    $fh = new IO::File;
+    if ($fh->open("< file")) {
+        print <$fh>;
+        $fh->close;
+    }
+
+    $fh = new IO::File "> file";
+    if (defined $fh) {
+        print $fh "bar\n";
+        $fh->close;
+    }
+
+    $fh = new IO::File "file", "r";
+    if (defined $fh) {
+        print <$fh>;
+        undef $fh;       # automatically closes the file
+    }
+
+    $fh = new IO::File "file", O_WRONLY|O_APPEND;
+    if (defined $fh) {
+        print $fh "corge\n";
+
+        $pos = $fh->getpos;
+        $fh->setpos($pos);
+
+        undef $fh;       # automatically closes the file
+    }
+
+    autoflush STDOUT 1;
+
+=head1 DESCRIPTION
+
+C<IO::File> inherits from C<IO::Handle> and C<IO::Seekable>. It extends
+these classes with methods that are specific to file handles.
+
+=head1 CONSTRUCTOR
+
+=over 4
+
+=item new ([ ARGS ] )
+
+Creates a C<IO::File>.  If it receives any parameters, they are passed to
+the method C<open>; if the open fails, the object is destroyed.  Otherwise,
+it is returned to the caller.
+
+=item new_tmpfile
+
+Creates an C<IO::File> opened for read/write on a newly created temporary
+file.  On systems where this is possible, the temporary file is anonymous
+(i.e. it is unlinked after creation, but held open).  If the temporary
+file cannot be created or opened, the C<IO::File> object is destroyed.
+Otherwise, it is returned to the caller.
+
+=back
+
+=head1 METHODS
+
+=over 4
+
+=item open( FILENAME [,MODE [,PERMS]] )
+
+C<open> accepts one, two or three parameters.  With one parameter,
+it is just a front end for the built-in C<open> function.  With two
+parameters, the first parameter is a filename that may include
+whitespace or other special characters, and the second parameter is
+the open mode, optionally followed by a file permission value.
+
+If C<IO::File::open> receives a Perl mode string ("E<gt>", "+E<lt>", etc.)
+or a POSIX fopen() mode string ("w", "r+", etc.), it uses the basic
+Perl C<open> operator.
+
+If C<IO::File::open> is given a numeric mode, it passes that mode
+and the optional permissions value to the Perl C<sysopen> operator.
+For convenience, C<IO::File::import> tries to import the O_XXX
+constants from the Fcntl module.  If dynamic loading is not available,
+this may fail, but the rest of IO::File will still work.
+
+=back
+
+=head1 SEE ALSO
+
+L<perlfunc>, 
+L<perlop/"I/O Operators">,
+L<IO::Handle>
+L<IO::Seekable>
+
+=head1 HISTORY
+
+Derived from FileHandle.pm by Graham Barr E<lt>F<bodg@tiuk.ti.com>E<gt>.
+
+=cut
+
+require 5.000;
+use strict;
+use vars qw($VERSION @EXPORT @EXPORT_OK $AUTOLOAD @ISA);
+use Carp;
+use Symbol;
+use SelectSaver;
+use IO::Seekable;
+
+require Exporter;
+require DynaLoader;
+
+@ISA = qw(IO::Handle IO::Seekable Exporter DynaLoader);
+
+$VERSION = "1.06021";
+
+@EXPORT = @IO::Seekable::EXPORT;
+
+eval {
+    # Make all Fcntl O_XXX constants available for importing
+    require Fcntl;
+    my @O = grep /^O_/, @Fcntl::EXPORT;
+    Fcntl->import(@O);  # first we import what we want to export
+    push(@EXPORT, @O);
+};
+
+
+################################################
+## Constructor
+##
+
+sub new {
+    my $type = shift;
+    my $class = ref($type) || $type || "IO::File";
+    @_ >= 0 && @_ <= 3
+	or croak "usage: new $class [FILENAME [,MODE [,PERMS]]]";
+    my $fh = $class->SUPER::new();
+    if (@_) {
+	$fh->open(@_)
+	    or return undef;
+    }
+    $fh;
+}
+
+################################################
+## Open
+##
+
+sub open {
+    @_ >= 2 && @_ <= 4 or croak 'usage: $fh->open(FILENAME [,MODE [,PERMS]])';
+    my ($fh, $file) = @_;
+    if (@_ > 2) {
+	my ($mode, $perms) = @_[2, 3];
+	if ($mode =~ /^\d+$/) {
+	    defined $perms or $perms = 0666;
+	    return sysopen($fh, $file, $mode, $perms);
+	}
+	$file = './' . $file if $file =~ m{\A[^\\/\w]};
+	$file = IO::Handle::_open_mode_string($mode) . " $file\0";
+    }
+    open($fh, $file);
+}
+
+1;
diff --git a/contrib/perl5/ext/IO/lib/IO/Handle.pm b/contrib/perl5/ext/IO/lib/IO/Handle.pm
new file mode 100644
index 0000000..7927641
--- /dev/null
+++ b/contrib/perl5/ext/IO/lib/IO/Handle.pm
@@ -0,0 +1,539 @@
+
+package IO::Handle;
+
+=head1 NAME
+
+IO::Handle - supply object methods for I/O handles
+
+=head1 SYNOPSIS
+
+    use IO::Handle;
+
+    $fh = new IO::Handle;
+    if ($fh->fdopen(fileno(STDIN),"r")) {
+        print $fh->getline;
+        $fh->close;
+    }
+
+    $fh = new IO::Handle;
+    if ($fh->fdopen(fileno(STDOUT),"w")) {
+        $fh->print("Some text\n");
+    }
+
+    use IO::Handle '_IOLBF';
+    $fh->setvbuf($buffer_var, _IOLBF, 1024);
+
+    undef $fh;       # automatically closes the file if it's open
+
+    autoflush STDOUT 1;
+
+=head1 DESCRIPTION
+
+C<IO::Handle> is the base class for all other IO handle classes. It is
+not intended that objects of C<IO::Handle> would be created directly,
+but instead C<IO::Handle> is inherited from by several other classes
+in the IO hierarchy.
+
+If you are reading this documentation, looking for a replacement for
+the C<FileHandle> package, then I suggest you read the documentation
+for C<IO::File>
+
+A C<IO::Handle> object is a reference to a symbol (see the C<Symbol> package)
+
+=head1 CONSTRUCTOR
+
+=over 4
+
+=item new ()
+
+Creates a new C<IO::Handle> object.
+
+=item new_from_fd ( FD, MODE )
+
+Creates a C<IO::Handle> like C<new> does.
+It requires two parameters, which are passed to the method C<fdopen>;
+if the fdopen fails, the object is destroyed. Otherwise, it is returned
+to the caller.
+
+=back
+
+=head1 METHODS
+
+See L<perlfunc> for complete descriptions of each of the following
+supported C<IO::Handle> methods, which are just front ends for the
+corresponding built-in functions:
+
+    close
+    fileno
+    getc
+    eof
+    read
+    truncate
+    stat
+    print
+    printf
+    sysread
+    syswrite
+
+See L<perlvar> for complete descriptions of each of the following
+supported C<IO::Handle> methods:
+
+    autoflush
+    output_field_separator
+    output_record_separator
+    input_record_separator
+    input_line_number
+    format_page_number
+    format_lines_per_page
+    format_lines_left
+    format_name
+    format_top_name
+    format_line_break_characters
+    format_formfeed
+    format_write
+
+Furthermore, for doing normal I/O you might need these:
+
+=over 
+
+=item $fh->fdopen ( FD, MODE )
+
+C<fdopen> is like an ordinary C<open> except that its first parameter
+is not a filename but rather a file handle name, a IO::Handle object,
+or a file descriptor number.
+
+=item $fh->opened
+
+Returns true if the object is currently a valid file descriptor.
+
+=item $fh->getline
+
+This works like <$fh> described in L<perlop/"I/O Operators">
+except that it's more readable and can be safely called in an
+array context but still returns just one line.
+
+=item $fh->getlines
+
+This works like <$fh> when called in an array context to
+read all the remaining lines in a file, except that it's more readable.
+It will also croak() if accidentally called in a scalar context.
+
+=item $fh->ungetc ( ORD )
+
+Pushes a character with the given ordinal value back onto the given
+handle's input stream.
+
+=item $fh->write ( BUF, LEN [, OFFSET }\] )
+
+This C<write> is like C<write> found in C, that is it is the
+opposite of read. The wrapper for the perl C<write> function is
+called C<format_write>.
+
+=item $fh->flush
+
+Flush the given handle's buffer.
+
+=item $fh->error
+
+Returns a true value if the given handle has experienced any errors
+since it was opened or since the last call to C<clearerr>.
+
+=item $fh->clearerr
+
+Clear the given handle's error indicator.
+
+=back
+
+If the C functions setbuf() and/or setvbuf() are available, then
+C<IO::Handle::setbuf> and C<IO::Handle::setvbuf> set the buffering
+policy for an IO::Handle.  The calling sequences for the Perl functions
+are the same as their C counterparts--including the constants C<_IOFBF>,
+C<_IOLBF>, and C<_IONBF> for setvbuf()--except that the buffer parameter
+specifies a scalar variable to use as a buffer.  WARNING: A variable
+used as a buffer by C<setbuf> or C<setvbuf> must not be modified in any
+way until the IO::Handle is closed or C<setbuf> or C<setvbuf> is called
+again, or memory corruption may result!  Note that you need to import
+the constants C<_IOFBF>, C<_IOLBF>, and C<_IONBF> explicitly.
+
+Lastly, there is a special method for working under B<-T> and setuid/gid
+scripts:
+
+=over
+
+=item $fh->untaint
+
+Marks the object as taint-clean, and as such data read from it will also
+be considered taint-clean. Note that this is a very trusting action to
+take, and appropriate consideration for the data source and potential
+vulnerability should be kept in mind.
+
+=back
+
+=head1 NOTE
+
+A C<IO::Handle> object is a GLOB reference. Some modules that
+inherit from C<IO::Handle> may want to keep object related variables
+in the hash table part of the GLOB. In an attempt to prevent modules
+trampling on each other I propose the that any such module should prefix
+its variables with its own name separated by _'s. For example the IO::Socket
+module keeps a C<timeout> variable in 'io_socket_timeout'.
+
+=head1 SEE ALSO
+
+L<perlfunc>, 
+L<perlop/"I/O Operators">,
+L<IO::File>
+
+=head1 BUGS
+
+Due to backwards compatibility, all filehandles resemble objects
+of class C<IO::Handle>, or actually classes derived from that class.
+They actually aren't.  Which means you can't derive your own 
+class from C<IO::Handle> and inherit those methods.
+
+=head1 HISTORY
+
+Derived from FileHandle.pm by Graham Barr E<lt>F<bodg@tiuk.ti.com>E<gt>
+
+=cut
+
+require 5.000;
+use strict;
+use vars qw($VERSION $XS_VERSION @EXPORT_OK $AUTOLOAD @ISA);
+use Carp;
+use Symbol;
+use SelectSaver;
+
+require Exporter;
+@ISA = qw(Exporter);
+
+$VERSION = "1.1505";
+$XS_VERSION = "1.15";
+
+@EXPORT_OK = qw(
+    autoflush
+    output_field_separator
+    output_record_separator
+    input_record_separator
+    input_line_number
+    format_page_number
+    format_lines_per_page
+    format_lines_left
+    format_name
+    format_top_name
+    format_line_break_characters
+    format_formfeed
+    format_write
+
+    print
+    printf
+    getline
+    getlines
+
+    SEEK_SET
+    SEEK_CUR
+    SEEK_END
+    _IOFBF
+    _IOLBF
+    _IONBF
+);
+
+
+################################################
+## Interaction with the XS.
+##
+
+require DynaLoader;
+@IO::ISA = qw(DynaLoader);
+bootstrap IO $XS_VERSION;
+
+sub AUTOLOAD {
+    if ($AUTOLOAD =~ /::(_?[a-z])/) {
+	$AutoLoader::AUTOLOAD = $AUTOLOAD;
+	goto &AutoLoader::AUTOLOAD
+    }
+    my $constname = $AUTOLOAD;
+    $constname =~ s/.*:://;
+    my $val = constant($constname);
+    defined $val or croak "$constname is not a valid IO::Handle macro";
+    no strict 'refs';
+    *$AUTOLOAD = sub { $val };
+    goto &$AUTOLOAD;
+}
+
+
+################################################
+## Constructors, destructors.
+##
+
+sub new {
+    my $class = ref($_[0]) || $_[0] || "IO::Handle";
+    @_ == 1 or croak "usage: new $class";
+    my $fh = gensym;
+    bless $fh, $class;
+}
+
+sub new_from_fd {
+    my $class = ref($_[0]) || $_[0] || "IO::Handle";
+    @_ == 3 or croak "usage: new_from_fd $class FD, MODE";
+    my $fh = gensym;
+    shift;
+    IO::Handle::fdopen($fh, @_)
+	or return undef;
+    bless $fh, $class;
+}
+
+#
+# There is no need for DESTROY to do anything, because when the
+# last reference to an IO object is gone, Perl automatically
+# closes its associated files (if any).  However, to avoid any
+# attempts to autoload DESTROY, we here define it to do nothing.
+#
+sub DESTROY {}
+
+
+################################################
+## Open and close.
+##
+
+sub _open_mode_string {
+    my ($mode) = @_;
+    $mode =~ /^\+?(<|>>?)$/
+      or $mode =~ s/^r(\+?)$/$1</
+      or $mode =~ s/^w(\+?)$/$1>/
+      or $mode =~ s/^a(\+?)$/$1>>/
+      or croak "IO::Handle: bad open mode: $mode";
+    $mode;
+}
+
+sub fdopen {
+    @_ == 3 or croak 'usage: $fh->fdopen(FD, MODE)';
+    my ($fh, $fd, $mode) = @_;
+    local(*GLOB);
+
+    if (ref($fd) && "".$fd =~ /GLOB\(/o) {
+	# It's a glob reference; Alias it as we cannot get name of anon GLOBs
+	my $n = qualify(*GLOB);
+	*GLOB = *{*$fd};
+	$fd =  $n;
+    } elsif ($fd =~ m#^\d+$#) {
+	# It's an FD number; prefix with "=".
+	$fd = "=$fd";
+    }
+
+    open($fh, _open_mode_string($mode) . '&' . $fd)
+	? $fh : undef;
+}
+
+sub close {
+    @_ == 1 or croak 'usage: $fh->close()';
+    my($fh) = @_;
+
+    close($fh);
+}
+
+################################################
+## Normal I/O functions.
+##
+
+# flock
+# select
+
+sub opened {
+    @_ == 1 or croak 'usage: $fh->opened()';
+    defined fileno($_[0]);
+}
+
+sub fileno {
+    @_ == 1 or croak 'usage: $fh->fileno()';
+    fileno($_[0]);
+}
+
+sub getc {
+    @_ == 1 or croak 'usage: $fh->getc()';
+    getc($_[0]);
+}
+
+sub eof {
+    @_ == 1 or croak 'usage: $fh->eof()';
+    eof($_[0]);
+}
+
+sub print {
+    @_ or croak 'usage: $fh->print([ARGS])';
+    my $this = shift;
+    print $this @_;
+}
+
+sub printf {
+    @_ >= 2 or croak 'usage: $fh->printf(FMT,[ARGS])';
+    my $this = shift;
+    printf $this @_;
+}
+
+sub getline {
+    @_ == 1 or croak 'usage: $fh->getline';
+    my $this = shift;
+    return scalar <$this>;
+} 
+
+*gets = \&getline;  # deprecated
+
+sub getlines {
+    @_ == 1 or croak 'usage: $fh->getline()';
+    wantarray or
+	croak 'Can\'t call $fh->getlines in a scalar context, use $fh->getline';
+    my $this = shift;
+    return <$this>;
+}
+
+sub truncate {
+    @_ == 2 or croak 'usage: $fh->truncate(LEN)';
+    truncate($_[0], $_[1]);
+}
+
+sub read {
+    @_ == 3 || @_ == 4 or croak '$fh->read(BUF, LEN [, OFFSET])';
+    read($_[0], $_[1], $_[2], $_[3] || 0);
+}
+
+sub sysread {
+    @_ == 3 || @_ == 4 or croak '$fh->sysread(BUF, LEN [, OFFSET])';
+    sysread($_[0], $_[1], $_[2], $_[3] || 0);
+}
+
+sub write {
+    @_ == 3 || @_ == 4 or croak '$fh->write(BUF, LEN [, OFFSET])';
+    local($\) = "";
+    print { $_[0] } substr($_[1], $_[3] || 0, $_[2]);
+}
+
+sub syswrite {
+    @_ == 3 || @_ == 4 or croak '$fh->syswrite(BUF, LEN [, OFFSET])';
+    syswrite($_[0], $_[1], $_[2], $_[3] || 0);
+}
+
+sub stat {
+    @_ == 1 or croak 'usage: $fh->stat()';
+    stat($_[0]);
+}
+
+################################################
+## State modification functions.
+##
+
+sub autoflush {
+    my $old = new SelectSaver qualify($_[0], caller) if ref($_[0]);
+    my $prev = $|;
+    $| = @_ > 1 ? $_[1] : 1;
+    $prev;
+}
+
+sub output_field_separator {
+    my $prev = $,;
+    $, = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub output_record_separator {
+    my $prev = $\;
+    $\ = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub input_record_separator {
+    my $prev = $/;
+    $/ = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub input_line_number {
+    # localizing $. doesn't work as advertised.  grrrrrr.
+    my $prev = $.;
+    $. = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub format_page_number {
+    my $old = new SelectSaver qualify($_[0], caller) if ref($_[0]);
+    my $prev = $%;
+    $% = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub format_lines_per_page {
+    my $old = new SelectSaver qualify($_[0], caller) if ref($_[0]);
+    my $prev = $=;
+    $= = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub format_lines_left {
+    my $old = new SelectSaver qualify($_[0], caller) if ref($_[0]);
+    my $prev = $-;
+    $- = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub format_name {
+    my $old = new SelectSaver qualify($_[0], caller) if ref($_[0]);
+    my $prev = $~;
+    $~ = qualify($_[1], caller) if @_ > 1;
+    $prev;
+}
+
+sub format_top_name {
+    my $old = new SelectSaver qualify($_[0], caller) if ref($_[0]);
+    my $prev = $^;
+    $^ = qualify($_[1], caller) if @_ > 1;
+    $prev;
+}
+
+sub format_line_break_characters {
+    my $prev = $:;
+    $: = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub format_formfeed {
+    my $prev = $^L;
+    $^L = $_[1] if @_ > 1;
+    $prev;
+}
+
+sub formline {
+    my $fh = shift;
+    my $picture = shift;
+    local($^A) = $^A;
+    local($\) = "";
+    formline($picture, @_);
+    print $fh $^A;
+}
+
+sub format_write {
+    @_ < 3 || croak 'usage: $fh->write( [FORMAT_NAME] )';
+    if (@_ == 2) {
+	my ($fh, $fmt) = @_;
+	my $oldfmt = $fh->format_name($fmt);
+	CORE::write($fh);
+	$fh->format_name($oldfmt);
+    } else {
+	CORE::write($_[0]);
+    }
+}
+
+sub fcntl {
+    @_ == 3 || croak 'usage: $fh->fcntl( OP, VALUE );';
+    my ($fh, $op, $val) = @_;
+    my $r = fcntl($fh, $op, $val);
+    defined $r && $r eq "0 but true" ? 0 : $r;
+}
+
+sub ioctl {
+    @_ == 3 || croak 'usage: $fh->ioctl( OP, VALUE );';
+    my ($fh, $op, $val) = @_;
+    my $r = ioctl($fh, $op, $val);
+    defined $r && $r eq "0 but true" ? 0 : $r;
+}
+
+1;
diff --git a/contrib/perl5/ext/IO/lib/IO/Pipe.pm b/contrib/perl5/ext/IO/lib/IO/Pipe.pm
new file mode 100644
index 0000000..ae6d9a5
--- /dev/null
+++ b/contrib/perl5/ext/IO/lib/IO/Pipe.pm
@@ -0,0 +1,239 @@
+# IO::Pipe.pm
+#
+# Copyright (c) 1996 Graham Barr <Graham.Barr@tiuk.ti.com>. All rights
+# reserved. This program is free software; you can redistribute it and/or
+# modify it under the same terms as Perl itself.
+
+package IO::Pipe;
+
+require 5.000;
+
+use IO::Handle;
+use strict;
+use vars qw($VERSION);
+use Carp;
+use Symbol;
+
+$VERSION = "1.0901";
+
+sub new {
+    my $type = shift;
+    my $class = ref($type) || $type || "IO::Pipe";
+    @_ == 0 || @_ == 2 or croak "usage: new $class [READFH, WRITEFH]";
+
+    my $me = bless gensym(), $class;
+
+    my($readfh,$writefh) = @_ ? @_ : $me->handles;
+
+    pipe($readfh, $writefh)
+	or return undef;
+
+    @{*$me} = ($readfh, $writefh);
+
+    $me;
+}
+
+sub handles {
+    @_ == 1 or croak 'usage: $pipe->handles()';
+    (IO::Pipe::End->new(), IO::Pipe::End->new());
+}
+
+my $do_spawn = $^O eq 'os2';
+
+sub _doit {
+    my $me = shift;
+    my $rw = shift;
+
+    my $pid = $do_spawn ? 0 : fork();
+
+    if($pid) { # Parent
+        return $pid;
+    }
+    elsif(defined $pid) { # Child or spawn
+        my $fh;
+        my $io = $rw ? \*STDIN : \*STDOUT;
+        my ($mode, $save) = $rw ? "r" : "w";
+        if ($do_spawn) {
+          require Fcntl;
+          $save = IO::Handle->new_from_fd($io, $mode);
+          # Close in child:
+          fcntl(shift, Fcntl::F_SETFD(), 1) or croak "fcntl: $!";
+          $fh = $rw ? ${*$me}[0] : ${*$me}[1];
+        } else {
+          shift;
+          $fh = $rw ? $me->reader() : $me->writer(); # close the other end
+        }
+        bless $io, "IO::Handle";
+        $io->fdopen($fh, $mode);
+        $fh->close;
+
+        if ($do_spawn) {
+          $pid = eval { system 1, @_ }; # 1 == P_NOWAIT
+          my $err = $!;
+    
+          $io->fdopen($save, $mode);
+          $save->close or croak "Cannot close $!";
+          croak "IO::Pipe: Cannot spawn-NOWAIT: $err" if not $pid or $pid < 0;
+          return $pid;
+        } else {
+          exec @_ or
+            croak "IO::Pipe: Cannot exec: $!";
+        }
+    }
+    else {
+        croak "IO::Pipe: Cannot fork: $!";
+    }
+
+    # NOT Reached
+}
+
+sub reader {
+    @_ >= 1 or croak 'usage: $pipe->reader()';
+    my $me = shift;
+    my $fh  = ${*$me}[0];
+    my $pid = $me->_doit(0, $fh, @_)
+        if(@_);
+
+    close ${*$me}[1];
+    bless $me, ref($fh);
+    *{*$me} = *{*$fh};          # Alias self to handle
+    bless $fh;                  # Really wan't un-bless here
+    ${*$me}{'io_pipe_pid'} = $pid
+        if defined $pid;
+
+    $me;
+}
+
+sub writer {
+    @_ >= 1 or croak 'usage: $pipe->writer()';
+    my $me = shift;
+    my $fh  = ${*$me}[1];
+    my $pid = $me->_doit(1, $fh, @_)
+        if(@_);
+
+    close ${*$me}[0];
+    bless $me, ref($fh);
+    *{*$me} = *{*$fh};          # Alias self to handle
+    bless $fh;                  # Really wan't un-bless here
+    ${*$me}{'io_pipe_pid'} = $pid
+        if defined $pid;
+
+    $me;
+}
+
+package IO::Pipe::End;
+
+use vars qw(@ISA);
+
+@ISA = qw(IO::Handle);
+
+sub close {
+    my $fh = shift;
+    my $r = $fh->SUPER::close(@_);
+
+    waitpid(${*$fh}{'io_pipe_pid'},0)
+	if(defined ${*$fh}{'io_pipe_pid'});
+
+    $r;
+}
+
+1;
+
+__END__
+
+=head1 NAME
+
+IO::pipe - supply object methods for pipes
+
+=head1 SYNOPSIS
+
+	use IO::Pipe;
+
+	$pipe = new IO::Pipe;
+
+	if($pid = fork()) { # Parent
+	    $pipe->reader();
+
+	    while(<$pipe> {
+		....
+	    }
+
+	}
+	elsif(defined $pid) { # Child
+	    $pipe->writer();
+
+	    print $pipe ....
+	}
+
+	or
+
+	$pipe = new IO::Pipe;
+
+	$pipe->reader(qw(ls -l));
+
+	while(<$pipe>) {
+	    ....
+	}
+
+=head1 DESCRIPTION
+
+C<IO::Pipe> provides an interface to createing pipes between
+processes.
+
+=head1 CONSTRCUTOR
+
+=over 4
+
+=item new ( [READER, WRITER] )
+
+Creates a C<IO::Pipe>, which is a reference to a newly created symbol
+(see the C<Symbol> package). C<IO::Pipe::new> optionally takes two
+arguments, which should be objects blessed into C<IO::Handle>, or a
+subclass thereof. These two objects will be used for the system call
+to C<pipe>. If no arguments are given then method C<handles> is called
+on the new C<IO::Pipe> object.
+
+These two handles are held in the array part of the GLOB until either
+C<reader> or C<writer> is called.
+
+=back
+
+=head1 METHODS
+
+=over 4
+
+=item reader ([ARGS])
+
+The object is re-blessed into a sub-class of C<IO::Handle>, and becomes a
+handle at the reading end of the pipe. If C<ARGS> are given then C<fork>
+is called and C<ARGS> are passed to exec.
+
+=item writer ([ARGS])
+
+The object is re-blessed into a sub-class of C<IO::Handle>, and becomes a
+handle at the writing end of the pipe. If C<ARGS> are given then C<fork>
+is called and C<ARGS> are passed to exec.
+
+=item handles ()
+
+This method is called during construction by C<IO::Pipe::new>
+on the newly created C<IO::Pipe> object. It returns an array of two objects
+blessed into C<IO::Pipe::End>, or a subclass thereof.
+
+=back
+
+=head1 SEE ALSO
+
+L<IO::Handle>
+
+=head1 AUTHOR
+
+Graham Barr <bodg@tiuk.ti.com>
+
+=head1 COPYRIGHT
+
+Copyright (c) 1996 Graham Barr. All rights reserved. This program is free
+software; you can redistribute it and/or modify it under the same terms
+as Perl itself.
+
+=cut
diff --git a/contrib/perl5/ext/IO/lib/IO/Seekable.pm b/contrib/perl5/ext/IO/lib/IO/Seekable.pm
new file mode 100644
index 0000000..91c381a
--- /dev/null
+++ b/contrib/perl5/ext/IO/lib/IO/Seekable.pm
@@ -0,0 +1,68 @@
+#
+
+package IO::Seekable;
+
+=head1 NAME
+
+IO::Seekable - supply seek based methods for I/O objects
+
+=head1 SYNOPSIS
+
+    use IO::Seekable;
+    package IO::Something;
+    @ISA = qw(IO::Seekable);
+
+=head1 DESCRIPTION
+
+C<IO::Seekable> does not have a constuctor of its own as is intended to
+be inherited by other C<IO::Handle> based objects. It provides methods
+which allow seeking of the file descriptors.
+
+If the C functions fgetpos() and fsetpos() are available, then
+C<IO::File::getpos> returns an opaque value that represents the
+current position of the IO::File, and C<IO::File::setpos> uses
+that value to return to a previously visited position.
+
+See L<perlfunc> for complete descriptions of each of the following
+supported C<IO::Seekable> methods, which are just front ends for the
+corresponding built-in functions:
+
+    seek
+    tell
+
+=head1 SEE ALSO
+
+L<perlfunc>, 
+L<perlop/"I/O Operators">,
+L<IO::Handle>
+L<IO::File>
+
+=head1 HISTORY
+
+Derived from FileHandle.pm by Graham Barr E<lt>bodg@tiuk.ti.comE<gt>
+
+=cut
+
+require 5.000;
+use Carp;
+use strict;
+use vars qw($VERSION @EXPORT @ISA);
+use IO::Handle qw(SEEK_SET SEEK_CUR SEEK_END);
+require Exporter;
+
+@EXPORT = qw(SEEK_SET SEEK_CUR SEEK_END);
+@ISA = qw(Exporter);
+
+$VERSION = "1.06";
+
+sub seek {
+    @_ == 3 or croak 'usage: $fh->seek(POS, WHENCE)';
+    seek($_[0], $_[1], $_[2]);
+}
+
+sub tell {
+    @_ == 1 or croak 'usage: $fh->tell()';
+    tell($_[0]);
+}
+
+1;
diff --git a/contrib/perl5/ext/IO/lib/IO/Select.pm b/contrib/perl5/ext/IO/lib/IO/Select.pm
new file mode 100644
index 0000000..dea684a
--- /dev/null
+++ b/contrib/perl5/ext/IO/lib/IO/Select.pm
@@ -0,0 +1,371 @@
+# IO::Select.pm
+#
+# Copyright (c) 1995 Graham Barr. All rights reserved. This program is free
+# software; you can redistribute it and/or modify it under the same terms
+# as Perl itself.
+
+package IO::Select;
+
+=head1 NAME
+
+IO::Select - OO interface to the select system call
+
+=head1 SYNOPSIS
+
+    use IO::Select;
+
+    $s = IO::Select->new();
+
+    $s->add(\*STDIN);
+    $s->add($some_handle);
+
+    @ready = $s->can_read($timeout);
+
+    @ready = IO::Select->new(@handles)->read(0);
+
+=head1 DESCRIPTION
+
+The C<IO::Select> package implements an object approach to the system C<select>
+function call. It allows the user to see what IO handles, see L<IO::Handle>,
+are ready for reading, writing or have an error condition pending.
+
+=head1 CONSTRUCTOR
+
+=over 4
+
+=item new ( [ HANDLES ] )
+
+The constructor creates a new object and optionally initialises it with a set
+of handles.
+
+=back
+
+=head1 METHODS
+
+=over 4
+
+=item add ( HANDLES )
+
+Add the list of handles to the C<IO::Select> object. It is these values that
+will be returned when an event occurs. C<IO::Select> keeps these values in a
+cache which is indexed by the C<fileno> of the handle, so if more than one
+handle with the same C<fileno> is specified then only the last one is cached.
+
+Each handle can be an C<IO::Handle> object, an integer or an array
+reference where the first element is a C<IO::Handle> or an integer.
+
+=item remove ( HANDLES )
+
+Remove all the given handles from the object. This method also works
+by the C<fileno> of the handles. So the exact handles that were added
+need not be passed, just handles that have an equivalent C<fileno>
+
+=item exists ( HANDLE )
+
+Returns a true value (actually the handle itself) if it is present.
+Returns undef otherwise.
+
+=item handles
+
+Return an array of all registered handles.
+
+=item can_read ( [ TIMEOUT ] )
+
+Return an array of handles that are ready for reading. C<TIMEOUT> is
+the maximum amount of time to wait before returning an empty list. If
+C<TIMEOUT> is not given and any handles are registered then the call
+will block.
+
+=item can_write ( [ TIMEOUT ] )
+
+Same as C<can_read> except check for handles that can be written to.
+
+=item has_error ( [ TIMEOUT ] )
+
+Same as C<can_read> except check for handles that have an error
+condition, for example EOF.
+
+=item count ()
+
+Returns the number of handles that the object will check for when
+one of the C<can_> methods is called or the object is passed to
+the C<select> static method.
+
+=item bits()
+
+Return the bit string suitable as argument to the core select() call.
+
+=item bits()
+
+Return the bit string suitable as argument to the core select() call.
+
+=item select ( READ, WRITE, ERROR [, TIMEOUT ] )
+
+C<select> is a static method, that is you call it with the package
+name like C<new>. C<READ>, C<WRITE> and C<ERROR> are either C<undef>
+or C<IO::Select> objects. C<TIMEOUT> is optional and has the same
+effect as for the core select call.
+
+The result will be an array of 3 elements, each a reference to an array
+which will hold the handles that are ready for reading, writing and have
+error conditions respectively. Upon error an empty array is returned.
+
+=back
+
+=head1 EXAMPLE
+
+Here is a short example which shows how C<IO::Select> could be used
+to write a server which communicates with several sockets while also
+listening for more connections on a listen socket
+
+    use IO::Select;
+    use IO::Socket;
+
+    $lsn = new IO::Socket::INET(Listen => 1, LocalPort => 8080);
+    $sel = new IO::Select( $lsn );
+    
+    while(@ready = $sel->can_read) {
+        foreach $fh (@ready) {
+            if($fh == $lsn) {
+                # Create a new socket
+                $new = $lsn->accept;
+                $sel->add($new);
+            }
+            else {
+                # Process socket
+
+                # Maybe we have finished with the socket
+                $sel->remove($fh);
+                $fh->close;
+            }
+        }
+    }
+
+=head1 AUTHOR
+
+Graham Barr E<lt>F<Graham.Barr@tiuk.ti.com>E<gt>
+
+=head1 COPYRIGHT
+
+Copyright (c) 1995 Graham Barr. All rights reserved. This program is free
+software; you can redistribute it and/or modify it under the same terms
+as Perl itself.
+
+=cut
+
+use     strict;
+use     vars qw($VERSION @ISA);
+require Exporter;
+
+$VERSION = "1.10";
+
+@ISA = qw(Exporter); # This is only so we can do version checking
+
+sub VEC_BITS () {0}
+sub FD_COUNT () {1}
+sub FIRST_FD () {2}
+
+sub new
+{
+ my $self = shift;
+ my $type = ref($self) || $self;
+
+ my $vec = bless [undef,0], $type;
+
+ $vec->add(@_)
+    if @_;
+
+ $vec;
+}
+
+sub add
+{
+ shift->_update('add', @_);
+}
+
+
+sub remove
+{
+ shift->_update('remove', @_);
+}
+
+
+sub exists
+{
+ my $vec = shift;
+ $vec->[$vec->_fileno(shift) + FIRST_FD];
+}
+
+
+sub _fileno
+{
+ my($self, $f) = @_;
+ $f = $f->[0] if ref($f) eq 'ARRAY';
+ ($f =~ /^\d+$/) ? $f : fileno($f);
+}
+
+sub _update
+{
+ my $vec = shift;
+ my $add = shift eq 'add';
+
+ my $bits = $vec->[VEC_BITS];
+ $bits = '' unless defined $bits;
+
+ my $count = 0;
+ my $f;
+ foreach $f (@_)
+  {
+   my $fn = $vec->_fileno($f);
+   next unless defined $fn;
+   my $i = $fn + FIRST_FD;
+   if ($add) {
+     if (defined $vec->[$i]) {
+	 $vec->[$i] = $f;  # if array rest might be different, so we update
+	 next;
+     }
+     $vec->[FD_COUNT]++;
+     vec($bits, $fn, 1) = 1;
+     $vec->[$i] = $f;
+   } else {      # remove
+     next unless defined $vec->[$i];
+     $vec->[FD_COUNT]--;
+     vec($bits, $fn, 1) = 0;
+     $vec->[$i] = undef;
+   }
+   $count++;
+  }
+ $vec->[VEC_BITS] = $vec->[FD_COUNT] ? $bits : undef;
+ $count;
+}
+
+sub can_read
+{
+ my $vec = shift;
+ my $timeout = shift;
+ my $r = $vec->[VEC_BITS];
+
+ defined($r) && (select($r,undef,undef,$timeout) > 0)
+    ? handles($vec, $r)
+    : ();
+}
+
+sub can_write
+{
+ my $vec = shift;
+ my $timeout = shift;
+ my $w = $vec->[VEC_BITS];
+
+ defined($w) && (select(undef,$w,undef,$timeout) > 0)
+    ? handles($vec, $w)
+    : ();
+}
+
+sub has_error
+{
+ my $vec = shift;
+ my $timeout = shift;
+ my $e = $vec->[VEC_BITS];
+
+ defined($e) && (select(undef,undef,$e,$timeout) > 0)
+    ? handles($vec, $e)
+    : ();
+}
+
+sub count
+{
+ my $vec = shift;
+ $vec->[FD_COUNT];
+}
+
+sub bits
+{
+ my $vec = shift;
+ $vec->[VEC_BITS];
+}
+
+sub as_string  # for debugging
+{
+ my $vec = shift;
+ my $str = ref($vec) . ": ";
+ my $bits = $vec->bits;
+ my $count = $vec->count;
+ $str .= defined($bits) ? unpack("b*", $bits) : "undef";
+ $str .= " $count";
+ my @handles = @$vec;
+ splice(@handles, 0, FIRST_FD);
+ for (@handles) {
+     $str .= " " . (defined($_) ? "$_" : "-");
+ }
+ $str;
+}
+
+sub _max
+{
+ my($a,$b,$c) = @_;
+ $a > $b
+    ? $a > $c
+        ? $a
+        : $c
+    : $b > $c
+        ? $b
+        : $c;
+}
+
+sub select
+{
+ shift
+   if defined $_[0] && !ref($_[0]);
+
+ my($r,$w,$e,$t) = @_;
+ my @result = ();
+
+ my $rb = defined $r ? $r->[VEC_BITS] : undef;
+ my $wb = defined $w ? $w->[VEC_BITS] : undef;
+ my $eb = defined $e ? $e->[VEC_BITS] : undef;
+
+ if(select($rb,$wb,$eb,$t) > 0)
+  {
+   my @r = ();
+   my @w = ();
+   my @e = ();
+   my $i = _max(defined $r ? scalar(@$r)-1 : 0,
+                defined $w ? scalar(@$w)-1 : 0,
+                defined $e ? scalar(@$e)-1 : 0);
+
+   for( ; $i >= FIRST_FD ; $i--)
+    {
+     my $j = $i - FIRST_FD;
+     push(@r, $r->[$i])
+        if defined $rb && defined $r->[$i] && vec($rb, $j, 1);
+     push(@w, $w->[$i])
+        if defined $wb && defined $w->[$i] && vec($wb, $j, 1);
+     push(@e, $e->[$i])
+        if defined $eb && defined $e->[$i] && vec($eb, $j, 1);
+    }
+
+   @result = (\@r, \@w, \@e);
+  }
+ @result;
+}
+
+
+sub handles
+{
+ my $vec = shift;
+ my $bits = shift;
+ my @h = ();
+ my $i;
+ my $max = scalar(@$vec) - 1;
+
+ for ($i = FIRST_FD; $i <= $max; $i++)
+  {
+   next unless defined $vec->[$i];
+   push(@h, $vec->[$i])
+      if !defined($bits) || vec($bits, $i - FIRST_FD, 1);
+  }
+ 
+ @h;
+}
+
+1;
diff --git a/contrib/perl5/ext/IO/lib/IO/Socket.pm b/contrib/perl5/ext/IO/lib/IO/Socket.pm
new file mode 100644
index 0000000..406f74d
--- /dev/null
+++ b/contrib/perl5/ext/IO/lib/IO/Socket.pm
@@ -0,0 +1,728 @@
+# IO::Socket.pm
+#
+# Copyright (c) 1996 Graham Barr <Graham.Barr@tiuk.ti.com>. All rights
+# reserved. This program is free software; you can redistribute it and/or
+# modify it under the same terms as Perl itself.
+
+package IO::Socket;
+
+=head1 NAME
+
+IO::Socket - Object interface to socket communications
+
+=head1 SYNOPSIS
+
+    use IO::Socket;
+
+=head1 DESCRIPTION
+
+C<IO::Socket> provides an object interface to creating and using sockets. It
+is built upon the L<IO::Handle> interface and inherits all the methods defined
+by L<IO::Handle>.
+
+C<IO::Socket> only defines methods for those operations which are common to all
+types of socket. Operations which are specified to a socket in a particular 
+domain have methods defined in sub classes of C<IO::Socket>
+
+C<IO::Socket> will export all functions (and constants) defined by L<Socket>.
+
+=head1 CONSTRUCTOR
+
+=over 4
+
+=item new ( [ARGS] )
+
+Creates an C<IO::Socket>, which is a reference to a
+newly created symbol (see the C<Symbol> package). C<new>
+optionally takes arguments, these arguments are in key-value pairs.
+C<new> only looks for one key C<Domain> which tells new which domain
+the socket will be in. All other arguments will be passed to the
+configuration method of the package for that domain, See below.
+
+C<IO::Socket>s will be in autoflush mode after creation.  Note that
+versions of IO::Socket prior to 1.1603 (as shipped with Perl 5.004_04)
+did not do this.   So if you need backward compatibility, you should
+set autoflush explicitly.
+
+=back
+
+=head1 METHODS
+
+See L<perlfunc> for complete descriptions of each of the following
+supported C<IO::Socket> methods, which are just front ends for the
+corresponding built-in functions:
+
+    socket
+    socketpair
+    bind
+    listen
+    accept
+    send
+    recv
+    peername (getpeername)
+    sockname (getsockname)
+
+Some methods take slightly different arguments to those defined in L<perlfunc>
+in attempt to make the interface more flexible. These are
+
+=over 4
+
+=item accept([PKG])
+
+perform the system call C<accept> on the socket and return a new object. The
+new object will be created in the same class as the listen socket, unless
+C<PKG> is specified. This object can be used to communicate with the client
+that was trying to connect. In a scalar context the new socket is returned,
+or undef upon failure. In an array context a two-element array is returned
+containing the new socket and the peer address, the list will
+be empty upon failure.
+
+Additional methods that are provided are
+
+=item timeout([VAL])
+
+Set or get the timeout value associated with this socket. If called without
+any arguments then the current setting is returned. If called with an argument
+the current setting is changed and the previous value returned.
+
+=item sockopt(OPT [, VAL])
+
+Unified method to both set and get options in the SOL_SOCKET level. If called
+with one argument then getsockopt is called, otherwise setsockopt is called.
+
+=item sockdomain
+
+Returns the numerical number for the socket domain type. For example, for
+a AF_INET socket the value of &AF_INET will be returned.
+
+=item socktype
+
+Returns the numerical number for the socket type. For example, for
+a SOCK_STREAM socket the value of &SOCK_STREAM will be returned.
+
+=item protocol
+
+Returns the numerical number for the protocol being used on the socket, if
+known. If the protocol is unknown, as with an AF_UNIX socket, zero
+is returned.
+
+=back
+
+=cut
+
+
+require 5.000;
+
+use Config;
+use IO::Handle;
+use Socket 1.3;
+use Carp;
+use strict;
+use vars qw(@ISA $VERSION);
+use Exporter;
+
+@ISA = qw(IO::Handle);
+
+$VERSION = "1.1603";
+
+sub import {
+    my $pkg = shift;
+    my $callpkg = caller;
+    Exporter::export 'Socket', $callpkg, @_;
+}
+
+sub new {
+    my($class,%arg) = @_;
+    my $fh = $class->SUPER::new();
+    $fh->autoflush;
+
+    ${*$fh}{'io_socket_timeout'} = delete $arg{Timeout};
+
+    return scalar(%arg) ? $fh->configure(\%arg)
+			: $fh;
+}
+
+my @domain2pkg = ();
+
+sub register_domain {
+    my($p,$d) = @_;
+    $domain2pkg[$d] = $p;
+}
+
+sub configure {
+    my($fh,$arg) = @_;
+    my $domain = delete $arg->{Domain};
+
+    croak 'IO::Socket: Cannot configure a generic socket'
+	unless defined $domain;
+
+    croak "IO::Socket: Unsupported socket domain"
+	unless defined $domain2pkg[$domain];
+
+    croak "IO::Socket: Cannot configure socket in domain '$domain'"
+	unless ref($fh) eq "IO::Socket";
+
+    bless($fh, $domain2pkg[$domain]);
+    $fh->configure($arg);
+}
+
+sub socket {
+    @_ == 4 or croak 'usage: $fh->socket(DOMAIN, TYPE, PROTOCOL)';
+    my($fh,$domain,$type,$protocol) = @_;
+
+    socket($fh,$domain,$type,$protocol) or
+    	return undef;
+
+    ${*$fh}{'io_socket_domain'} = $domain;
+    ${*$fh}{'io_socket_type'}   = $type;
+    ${*$fh}{'io_socket_proto'}  = $protocol;
+
+    $fh;
+}
+
+sub socketpair {
+    @_ == 4 || croak 'usage: IO::Socket->pair(DOMAIN, TYPE, PROTOCOL)';
+    my($class,$domain,$type,$protocol) = @_;
+    my $fh1 = $class->new();
+    my $fh2 = $class->new();
+
+    socketpair($fh1,$fh2,$domain,$type,$protocol) or
+    	return ();
+
+    ${*$fh1}{'io_socket_type'}  = ${*$fh2}{'io_socket_type'}  = $type;
+    ${*$fh1}{'io_socket_proto'} = ${*$fh2}{'io_socket_proto'} = $protocol;
+
+    ($fh1,$fh2);
+}
+
+sub connect {
+    @_ == 2 || @_ == 3 or croak 'usage: $fh->connect(NAME) or $fh->connect(PORT, ADDR)';
+    my $fh = shift;
+    my $addr = @_ == 1 ? shift : sockaddr_in(@_);
+    my $timeout = ${*$fh}{'io_socket_timeout'};
+    local($SIG{ALRM}) = $timeout ? sub { undef $fh; }
+				 : $SIG{ALRM} || 'DEFAULT';
+
+     eval {
+    	croak 'connect: Bad address'
+    	    if(@_ == 2 && !defined $_[1]);
+
+    	if($timeout) {
+    	    defined $Config{d_alarm} && defined alarm($timeout) or
+    	    	$timeout = 0;
+    	}
+
+	my $ok = connect($fh, $addr);
+
+    	alarm(0)
+    	    if($timeout);
+
+	croak "connect: timeout"
+	    unless defined $fh;
+
+	undef $fh unless $ok;
+    };
+
+    $fh;
+}
+
+sub bind {
+    @_ == 2 || @_ == 3 or croak 'usage: $fh->bind(NAME) or $fh->bind(PORT, ADDR)';
+    my $fh = shift;
+    my $addr = @_ == 1 ? shift : sockaddr_in(@_);
+
+    return bind($fh, $addr) ? $fh
+			    : undef;
+}
+
+sub listen {
+    @_ >= 1 && @_ <= 2 or croak 'usage: $fh->listen([QUEUE])';
+    my($fh,$queue) = @_;
+    $queue = 5
+	unless $queue && $queue > 0;
+
+    return listen($fh, $queue) ? $fh
+			       : undef;
+}
+
+sub accept {
+    @_ == 1 || @_ == 2 or croak 'usage $fh->accept([PKG])';
+    my $fh = shift;
+    my $pkg = shift || $fh;
+    my $timeout = ${*$fh}{'io_socket_timeout'};
+    my $new = $pkg->new(Timeout => $timeout);
+    my $peer = undef;
+
+    eval {
+    	if($timeout) {
+    	    my $fdset = "";
+    	    vec($fdset, $fh->fileno,1) = 1;
+    	    croak "accept: timeout"
+    	    	unless select($fdset,undef,undef,$timeout);
+    	}
+    	$peer = accept($new,$fh);
+    };
+
+    return wantarray ? defined $peer ? ($new, $peer)
+    	    	    	    	     : () 
+    	      	     : defined $peer ? $new
+    	    	    	    	     : undef;
+}
+
+sub sockname {
+    @_ == 1 or croak 'usage: $fh->sockname()';
+    getsockname($_[0]);
+}
+
+sub peername {
+    @_ == 1 or croak 'usage: $fh->peername()';
+    my($fh) = @_;
+    getpeername($fh)
+      || ${*$fh}{'io_socket_peername'}
+      || undef;
+}
+
+sub send {
+    @_ >= 2 && @_ <= 4 or croak 'usage: $fh->send(BUF, [FLAGS, [TO]])';
+    my $fh    = $_[0];
+    my $flags = $_[2] || 0;
+    my $peer  = $_[3] || $fh->peername;
+
+    croak 'send: Cannot determine peer address'
+	 unless($peer);
+
+    my $r = defined(getpeername($fh))
+	? send($fh, $_[1], $flags)
+	: send($fh, $_[1], $flags, $peer);
+
+    # remember who we send to, if it was sucessful
+    ${*$fh}{'io_socket_peername'} = $peer
+	if(@_ == 4 && defined $r);
+
+    $r;
+}
+
+sub recv {
+    @_ == 3 || @_ == 4 or croak 'usage: $fh->recv(BUF, LEN [, FLAGS])';
+    my $sock  = $_[0];
+    my $len   = $_[2];
+    my $flags = $_[3] || 0;
+
+    # remember who we recv'd from
+    ${*$sock}{'io_socket_peername'} = recv($sock, $_[1]='', $len, $flags);
+}
+
+
+sub setsockopt {
+    @_ == 4 or croak '$fh->setsockopt(LEVEL, OPTNAME)';
+    setsockopt($_[0],$_[1],$_[2],$_[3]);
+}
+
+my $intsize = length(pack("i",0));
+
+sub getsockopt {
+    @_ == 3 or croak '$fh->getsockopt(LEVEL, OPTNAME)';
+    my $r = getsockopt($_[0],$_[1],$_[2]);
+    # Just a guess
+    $r = unpack("i", $r)
+	if(defined $r && length($r) == $intsize);
+    $r;
+}
+
+sub sockopt {
+    my $fh = shift;
+    @_ == 1 ? $fh->getsockopt(SOL_SOCKET,@_)
+	    : $fh->setsockopt(SOL_SOCKET,@_);
+}
+
+sub timeout {
+    @_ == 1 || @_ == 2 or croak 'usage: $fh->timeout([VALUE])';
+    my($fh,$val) = @_;
+    my $r = ${*$fh}{'io_socket_timeout'} || undef;
+
+    ${*$fh}{'io_socket_timeout'} = 0 + $val
+	if(@_ == 2);
+
+    $r;
+}
+
+sub sockdomain {
+    @_ == 1 or croak 'usage: $fh->sockdomain()';
+    my $fh = shift;
+    ${*$fh}{'io_socket_domain'};
+}
+
+sub socktype {
+    @_ == 1 or croak 'usage: $fh->socktype()';
+    my $fh = shift;
+    ${*$fh}{'io_socket_type'}
+}
+
+sub protocol {
+    @_ == 1 or croak 'usage: $fh->protocol()';
+    my($fh) = @_;
+    ${*$fh}{'io_socket_protocol'};
+}
+
+=head1 SUB-CLASSES
+
+=cut
+
+##
+## AF_INET
+##
+
+package IO::Socket::INET;
+
+use strict;
+use vars qw(@ISA);
+use Socket;
+use Carp;
+use Exporter;
+
+@ISA = qw(IO::Socket);
+
+IO::Socket::INET->register_domain( AF_INET );
+
+my %socket_type = ( tcp => SOCK_STREAM,
+		    udp => SOCK_DGRAM,
+		    icmp => SOCK_RAW,
+		  );
+
+=head2 IO::Socket::INET
+
+C<IO::Socket::INET> provides a constructor to create an AF_INET domain socket
+and some related methods. The constructor can take the following options
+
+    PeerAddr	Remote host address          <hostname>[:<port>]
+    PeerPort	Remote port or service       <service>[(<no>)] | <no>
+    LocalAddr	Local host bind	address      hostname[:port]
+    LocalPort	Local host bind	port         <service>[(<no>)] | <no>
+    Proto	Protocol name (or number)    "tcp" | "udp" | ...
+    Type	Socket type                  SOCK_STREAM | SOCK_DGRAM | ...
+    Listen	Queue size for listen
+    Reuse	Set SO_REUSEADDR before binding
+    Timeout	Timeout	value for various operations
+
+
+If C<Listen> is defined then a listen socket is created, else if the
+socket type, which is derived from the protocol, is SOCK_STREAM then
+connect() is called.
+
+The C<PeerAddr> can be a hostname or the IP-address on the
+"xx.xx.xx.xx" form.  The C<PeerPort> can be a number or a symbolic
+service name.  The service name might be followed by a number in
+parenthesis which is used if the service is not known by the system.
+The C<PeerPort> specification can also be embedded in the C<PeerAddr>
+by preceding it with a ":".
+
+If C<Proto> is not given and you specify a symbolic C<PeerPort> port,
+then the constructor will try to derive C<Proto> from the service
+name.  As a last resort C<Proto> "tcp" is assumed.  The C<Type>
+parameter will be deduced from C<Proto> if not specified.
+
+If the constructor is only passed a single argument, it is assumed to
+be a C<PeerAddr> specification.
+
+Examples:
+
+   $sock = IO::Socket::INET->new(PeerAddr => 'www.perl.org',
+                                 PeerPort => 'http(80)',
+                                 Proto    => 'tcp');
+
+   $sock = IO::Socket::INET->new(PeerAddr => 'localhost:smtp(25)');
+
+   $sock = IO::Socket::INET->new(Listen    => 5,
+                                 LocalAddr => 'localhost',
+                                 LocalPort => 9000,
+                                 Proto     => 'tcp');
+
+   $sock = IO::Socket::INET->new('127.0.0.1:25');
+
+
+=head2 METHODS
+
+=over 4
+
+=item sockaddr ()
+
+Return the address part of the sockaddr structure for the socket
+
+=item sockport ()
+
+Return the port number that the socket is using on the local host
+
+=item sockhost ()
+
+Return the address part of the sockaddr structure for the socket in a
+text form xx.xx.xx.xx
+
+=item peeraddr ()
+
+Return the address part of the sockaddr structure for the socket on
+the peer host
+
+=item peerport ()
+
+Return the port number for the socket on the peer host.
+
+=item peerhost ()
+
+Return the address part of the sockaddr structure for the socket on the
+peer host in a text form xx.xx.xx.xx
+
+=back
+
+=cut
+
+sub new
+{
+  my $class = shift;
+  unshift(@_, "PeerAddr") if @_ == 1;
+  return $class->SUPER::new(@_);
+}
+
+sub _sock_info {
+  my($addr,$port,$proto) = @_;
+  my @proto = ();
+  my @serv = ();
+
+  $port = $1
+	if(defined $addr && $addr =~ s,:([\w\(\)/]+)$,,);
+
+  if(defined $proto) {
+    @proto = $proto =~ m,\D, ? getprotobyname($proto)
+			     : getprotobynumber($proto);
+
+    $proto = $proto[2] || undef;
+  }
+
+  if(defined $port) {
+    $port =~ s,\((\d+)\)$,,;
+
+    my $defport = $1 || undef;
+    my $pnum = ($port =~ m,^(\d+)$,)[0];
+
+    @serv= getservbyname($port, $proto[0] || "")
+	if($port =~ m,\D,);
+
+    $port = $pnum || $serv[2] || $defport || undef;
+
+    $proto = (getprotobyname($serv[3]))[2] || undef
+	if @serv && !$proto;
+  }
+
+ return ($addr || undef,
+	 $port || undef,
+	 $proto || undef
+	);
+}
+
+sub _error {
+    my $fh = shift;
+    $@ = join("",ref($fh),": ",@_);
+    carp $@ if $^W;
+    close($fh)
+	if(defined fileno($fh));
+    return undef;
+}
+
+sub configure {
+    my($fh,$arg) = @_;
+    my($lport,$rport,$laddr,$raddr,$proto,$type);
+
+
+    ($laddr,$lport,$proto) = _sock_info($arg->{LocalAddr},
+					$arg->{LocalPort},
+					$arg->{Proto});
+
+    $laddr = defined $laddr ? inet_aton($laddr)
+			    : INADDR_ANY;
+
+    return _error($fh,"Bad hostname '",$arg->{LocalAddr},"'")
+	unless(defined $laddr);
+
+    unless(exists $arg->{Listen}) {
+	($raddr,$rport,$proto) = _sock_info($arg->{PeerAddr},
+					    $arg->{PeerPort},
+					    $proto);
+    }
+
+    if(defined $raddr) {
+	$raddr = inet_aton($raddr);
+	return _error($fh,"Bad hostname '",$arg->{PeerAddr},"'")
+		unless(defined $raddr);
+    }
+
+    $proto ||= (getprotobyname "tcp")[2];
+    return _error($fh,'Cannot determine protocol')
+	unless($proto);
+
+    my $pname = (getprotobynumber($proto))[0];
+    $type = $arg->{Type} || $socket_type{$pname};
+
+    $fh->socket(AF_INET, $type, $proto) or
+	return _error($fh,"$!");
+
+    if ($arg->{Reuse}) {
+	$fh->sockopt(SO_REUSEADDR,1) or
+		return _error($fh);
+    }
+
+    $fh->bind($lport || 0, $laddr) or
+	return _error($fh,"$!");
+
+    if(exists $arg->{Listen}) {
+	$fh->listen($arg->{Listen} || 5) or
+	    return _error($fh,"$!");
+    }
+    else {
+	return _error($fh,'Cannot determine remote port')
+		unless($rport || $type == SOCK_DGRAM || $type == SOCK_RAW);
+
+	if($type == SOCK_STREAM || defined $raddr) {
+	    return _error($fh,'Bad peer address')
+	    	unless(defined $raddr);
+
+	    $fh->connect($rport,$raddr) or
+		return _error($fh,"$!");
+	}
+    }
+
+    $fh;
+}
+
+sub sockaddr {
+    @_ == 1 or croak 'usage: $fh->sockaddr()';
+    my($fh) = @_;
+    (sockaddr_in($fh->sockname))[1];
+}
+
+sub sockport {
+    @_ == 1 or croak 'usage: $fh->sockport()';
+    my($fh) = @_;
+    (sockaddr_in($fh->sockname))[0];
+}
+
+sub sockhost {
+    @_ == 1 or croak 'usage: $fh->sockhost()';
+    my($fh) = @_;
+    inet_ntoa($fh->sockaddr);
+}
+
+sub peeraddr {
+    @_ == 1 or croak 'usage: $fh->peeraddr()';
+    my($fh) = @_;
+    (sockaddr_in($fh->peername))[1];
+}
+
+sub peerport {
+    @_ == 1 or croak 'usage: $fh->peerport()';
+    my($fh) = @_;
+    (sockaddr_in($fh->peername))[0];
+}
+
+sub peerhost {
+    @_ == 1 or croak 'usage: $fh->peerhost()';
+    my($fh) = @_;
+    inet_ntoa($fh->peeraddr);
+}
+
+##
+## AF_UNIX
+##
+
+package IO::Socket::UNIX;
+
+use strict;
+use vars qw(@ISA $VERSION);
+use Socket;
+use Carp;
+use Exporter;
+
+@ISA = qw(IO::Socket);
+
+IO::Socket::UNIX->register_domain( AF_UNIX );
+
+=head2 IO::Socket::UNIX
+
+C<IO::Socket::UNIX> provides a constructor to create an AF_UNIX domain socket
+and some related methods. The constructor can take the following options
+
+    Type    	Type of socket (eg SOCK_STREAM or SOCK_DGRAM)
+    Local   	Path to local fifo
+    Peer    	Path to peer fifo
+    Listen  	Create a listen socket
+
+=head2 METHODS
+
+=over 4
+
+=item hostpath()
+
+Returns the pathname to the fifo at the local end
+
+=item peerpath()
+
+Returns the pathanme to the fifo at the peer end
+
+=back
+
+=cut
+
+sub configure {
+    my($fh,$arg) = @_;
+    my($bport,$cport);
+
+    my $type = $arg->{Type} || SOCK_STREAM;
+
+    $fh->socket(AF_UNIX, $type, 0) or
+	return undef;
+
+    if(exists $arg->{Local}) {
+	my $addr = sockaddr_un($arg->{Local});
+	$fh->bind($addr) or
+	    return undef;
+    }
+    if(exists $arg->{Listen}) {
+	$fh->listen($arg->{Listen} || 5) or
+	    return undef;
+    }
+    elsif(exists $arg->{Peer}) {
+	my $addr = sockaddr_un($arg->{Peer});
+	$fh->connect($addr) or
+	    return undef;
+    }
+
+    $fh;
+}
+
+sub hostpath {
+    @_ == 1 or croak 'usage: $fh->hostpath()';
+    my $n = $_[0]->sockname || return undef;
+    (sockaddr_un($n))[0];
+}
+
+sub peerpath {
+    @_ == 1 or croak 'usage: $fh->peerpath()';
+    my $n = $_[0]->peername || return undef;
+    (sockaddr_un($n))[0];
+}
+
+=head1 SEE ALSO
+
+L<Socket>, L<IO::Handle>
+
+=head1 AUTHOR
+
+Graham Barr E<lt>F<Graham.Barr@tiuk.ti.com>E<gt>
+
+=head1 COPYRIGHT
+
+Copyright (c) 1996 Graham Barr. 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; # Keep require happy