#
# This file is auto-generated. ***ANY*** changes here will be lost
#

package Errno;
our (@EXPORT_OK,%EXPORT_TAGS,@ISA,$VERSION,%errno,$AUTOLOAD);
use Exporter ();
use Config;
use strict;

"$Config{'archname'}-$Config{'osvers'}" eq
"os2_emx-4.5" or
	die "Errno architecture (os2_emx-4.5) does not match executable architecture ($Config{'archname'}-$Config{'osvers'})";

$VERSION = "1.09_00";
$VERSION = eval $VERSION;
@ISA = qw(Exporter);

@EXPORT_OK = qw(EROFS ESHUTDOWN EPROTONOSUPPORT ENOLCK ENFILE
	EADDRINUSE ECONNABORTED EBADF EDEADLK ENOTDIR ENOTTY EINVAL EXDEV
	ELOOP ECONNREFUSED EISCONN EFBIG ENOENT ECONNRESET EPFNOSUPPORT EMBED
	EWOULDBLOCK EDOM EMSGSIZE ENOTSOCK EIO EDESTADDRREQ ENOSPC ENOBUFS
	ERANGE EINPROGRESS EADDRNOTAVAIL ENOSYS EAFNOSUPPORT EINTR EHOSTDOWN
	ENOMEM ENOTCONN ENETUNREACH EPIPE EOPNOTSUPP ESPIPE EALREADY EMFILE
	ENAMETOOLONG EACCES ENOEXEC EISDIR EBUSY EPERM E2BIG EEXIST
	ETOOMANYREFS ESOCKTNOSUPPORT ETIMEDOUT ESRCH ENXIO ENODEV EFAULT
	EAGAIN EMLINK ENOPROTOOPT ECHILD EHOSTUNREACH ENETDOWN EPROTOTYPE
	ENETRESET ENOTEMPTY);

%EXPORT_TAGS = (
    POSIX => [qw(
	E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EAFNOSUPPORT EAGAIN EALREADY
	EBADF EBUSY ECHILD ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK
	EDESTADDRREQ EDOM EEXIST EFAULT EFBIG EHOSTDOWN EHOSTUNREACH
	EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK
	EMSGSIZE ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS
	ENODEV ENOENT ENOEXEC ENOLCK ENOMEM ENOPROTOOPT ENOSPC ENOSYS ENOTCONN
	ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT
	EPIPE EPROTONOSUPPORT EPROTOTYPE ERANGE EROFS ESHUTDOWN
	ESOCKTNOSUPPORT ESPIPE ESRCH ETIMEDOUT ETOOMANYREFS EWOULDBLOCK
	EXDEV
    )]
);

sub EMBED () { 1 }
sub EPERM () { 1 }
sub ENOENT () { 2 }
sub ESRCH () { 3 }
sub EINTR () { 4 }
sub EIO () { 5 }
sub ENXIO () { 6 }
sub E2BIG () { 7 }
sub ENOEXEC () { 8 }
sub EBADF () { 9 }
sub ECHILD () { 10 }
sub EWOULDBLOCK () { 11 }
sub EAGAIN () { 11 }
sub ENOMEM () { 12 }
sub EACCES () { 13 }
sub EFAULT () { 14 }
sub ENOLCK () { 15 }
sub EBUSY () { 16 }
sub EEXIST () { 17 }
sub EXDEV () { 18 }
sub ENODEV () { 19 }
sub ENOTDIR () { 20 }
sub EISDIR () { 21 }
sub EINVAL () { 22 }
sub ENFILE () { 23 }
sub EMFILE () { 24 }
sub ENOTTY () { 25 }
sub EDEADLK () { 26 }
sub EFBIG () { 27 }
sub ENOSPC () { 28 }
sub ESPIPE () { 29 }
sub EROFS () { 30 }
sub EMLINK () { 31 }
sub EPIPE () { 32 }
sub EDOM () { 33 }
sub ERANGE () { 34 }
sub ENOTEMPTY () { 35 }
sub EINPROGRESS () { 36 }
sub ENOSYS () { 37 }
sub ENAMETOOLONG () { 38 }
sub EDESTADDRREQ () { 39 }
sub EMSGSIZE () { 40 }
sub EPROTOTYPE () { 41 }
sub ENOPROTOOPT () { 42 }
sub EPROTONOSUPPORT () { 43 }
sub ESOCKTNOSUPPORT () { 44 }
sub EOPNOTSUPP () { 45 }
sub EPFNOSUPPORT () { 46 }
sub EAFNOSUPPORT () { 47 }
sub EADDRINUSE () { 48 }
sub EADDRNOTAVAIL () { 49 }
sub ENETDOWN () { 50 }
sub ENETUNREACH () { 51 }
sub ENETRESET () { 52 }
sub ECONNABORTED () { 53 }
sub ECONNRESET () { 54 }
sub ENOBUFS () { 55 }
sub EISCONN () { 56 }
sub ENOTCONN () { 57 }
sub ESHUTDOWN () { 58 }
sub ETOOMANYREFS () { 59 }
sub ETIMEDOUT () { 60 }
sub ECONNREFUSED () { 61 }
sub ELOOP () { 62 }
sub ENOTSOCK () { 63 }
sub EHOSTDOWN () { 64 }
sub EHOSTUNREACH () { 65 }
sub EALREADY () { 66 }

sub TIEHASH { bless [] }

sub FETCH {
    my ($self, $errname) = @_;
    my $proto = prototype("Errno::$errname");
    my $errno = "";
    if (defined($proto) && $proto eq "") {
	no strict 'refs';
	$errno = &$errname;
        $errno = 0 unless $! == $errno;
    }
    return $errno;
}

sub STORE {
    require Carp;
    Carp::confess("ERRNO hash is read only!");
}

*CLEAR = \&STORE;
*DELETE = \&STORE;

sub NEXTKEY {
    my($k,$v);
    while(($k,$v) = each %Errno::) {
	my $proto = prototype("Errno::$k");
	last if (defined($proto) && $proto eq "");
    }
    $k
}

sub FIRSTKEY {
    my $s = scalar keys %Errno::;	# initialize iterator
    goto &NEXTKEY;
}

sub EXISTS {
    my ($self, $errname) = @_;
    my $proto = prototype($errname);
    defined($proto) && $proto eq "";
}

tie %!, __PACKAGE__;

1;
__END__

=head1 NAME

Errno - System errno constants

=head1 SYNOPSIS

    use Errno qw(EINTR EIO :POSIX);

=head1 DESCRIPTION

C<Errno> defines and conditionally exports all the error constants
defined in your system C<errno.h> include file. It has a single export
tag, C<:POSIX>, which will export all POSIX defined error numbers.

C<Errno> also makes C<%!> magic such that each element of C<%!> has a
non-zero value only if C<$!> is set to that value. For example:

    use Errno;

    unless (open(FH, "/fangorn/spouse")) {
        if ($!{ENOENT}) {
            warn "Get a wife!\n";
        } else {
            warn "This path is barred: $!";
        } 
    } 

If a specified constant C<EFOO> does not exist on the system, C<$!{EFOO}>
returns C<"">.  You may use C<exists $!{EFOO}> to check whether the
constant is available on the system.

=head1 CAVEATS

Importing a particular constant may not be very portable, because the
import will fail on platforms that do not have that constant.  A more
portable way to set C<$!> to a valid value is to use:

    if (exists &Errno::EFOO) {
        $! = &Errno::EFOO;
    }

=head1 AUTHOR

Graham Barr <gbarr@pobox.com>

=head1 COPYRIGHT

Copyright (c) 1997-8 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

