errno.pm

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

#
# 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
"i686-linux-2.6.8-2-k7" or
	die "Errno architecture (i686-linux-2.6.8-2-k7) does not match executable architecture ($Config{'archname'}-$Config{'osvers'})";

$VERSION = "1.10";
$VERSION = eval $VERSION;
@ISA = qw(Exporter);

@EXPORT_OK = qw(EADV EUCLEAN ENOMSG EBADR EROFS ENOTSUP ESHUTDOWN
	EMULTIHOP EPROTONOSUPPORT ESTRPIPE ENOLCK ENFILE EADDRINUSE EL3HLT
	ECONNABORTED EBADF ECANCELED ENAVAIL ECHRNG ENOTBLK EDEADLK ENOLINK
	ESRMNT ENOTNAM ELNRNG ETIME ENOTDIR ENOTTY EINVAL ENOANO EXDEV EBADE
	ELOOP EBADSLT ECONNREFUSED ENOSTR EISCONN ENONET EOVERFLOW EFBIG
	ENOENT ECONNRESET EPFNOSUPPORT ELIBMAX EWOULDBLOCK EREMOTEIO EBADMSG
	ENOMEDIUM EL2HLT ENOPKG EDOM EBFONT ELIBSCN EMSGSIZE ENOCSI EL3RST
	EDESTADDRREQ EIO ENOTSOCK ENOSPC EMEDIUMTYPE EIDRM ENOBUFS ERANGE
	EINPROGRESS ENOSYS EAFNOSUPPORT EADDRNOTAVAIL EINTR EHOSTDOWN EILSEQ
	EREMOTE EBADFD ENOSR ENOMEM ENETUNREACH EPIPE ENOTCONN ESTALE ENODATA
	EDQUOT EUSERS EOPNOTSUPP EPROTO EISNAM ESPIPE EALREADY ENAMETOOLONG
	EMFILE EACCES ENOEXEC EISDIR EBUSY EBADRQC EPERM E2BIG ELIBEXEC EEXIST
	EDOTDOT ETOOMANYREFS ELIBACC ENOTUNIQ ELIBBAD ECOMM ERESTART
	ESOCKTNOSUPPORT EUNATCH ETIMEDOUT ENXIO ESRCH EFAULT ENODEV ETXTBSY
	EDEADLOCK EAGAIN EXFULL EMLINK ENOPROTOOPT ECHILD ENETDOWN
	EHOSTUNREACH EPROTOTYPE EL2NSYNC EREMCHG ENETRESET ENOTEMPTY);
	
%EXPORT_TAGS = (
    POSIX => [qw(
	E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EAFNOSUPPORT EAGAIN EALREADY
	EBADF EBUSY ECHILD ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK
	EDESTADDRREQ EDOM EDQUOT 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 ENOTBLK
	ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM
	EPFNOSUPPORT EPIPE EPROTONOSUPPORT EPROTOTYPE ERANGE EREMOTE ERESTART
	EROFS ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESTALE ETIMEDOUT
	ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV
    )]
);

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 ENOTBLK () { 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 ETXTBSY () { 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 EDEADLK () { 35 }
sub EDEADLOCK () { 35 }
sub ENAMETOOLONG () { 36 }
sub ENOLCK () { 37 }
sub ENOSYS () { 38 }
sub ENOTEMPTY () { 39 }
sub ELOOP () { 40 }
sub ENOMSG () { 42 }
sub EIDRM () { 43 }
sub ECHRNG () { 44 }
sub EL2NSYNC () { 45 }
sub EL3HLT () { 46 }
sub EL3RST () { 47 }
sub ELNRNG () { 48 }
sub EUNATCH () { 49 }
sub ENOCSI () { 50 }
sub EL2HLT () { 51 }
sub EBADE () { 52 }
sub EBADR () { 53 }
sub EXFULL () { 54 }
sub ENOANO () { 55 }
sub EBADRQC () { 56 }
sub EBADSLT () { 57 }
sub EBFONT () { 59 }
sub ENOSTR () { 60 }
sub ENODATA () { 61 }
sub ETIME () { 62 }
sub ENOSR () { 63 }
sub ENONET () { 64 }
sub ENOPKG () { 65 }
sub EREMOTE () { 66 }
sub ENOLINK () { 67 }
sub EADV () { 68 }
sub ESRMNT () { 69 }
sub ECOMM () { 70 }
sub EPROTO () { 71 }
sub EMULTIHOP () { 72 }
sub EDOTDOT () { 73 }
sub EBADMSG () { 74 }
sub EOVERFLOW () { 75 }
sub ENOTUNIQ () { 76 }
sub EBADFD () { 77 }
sub EREMCHG () { 78 }
sub ELIBACC () { 79 }
sub ELIBBAD () { 80 }
sub ELIBSCN () { 81 }
sub ELIBMAX () { 82 }
sub ELIBEXEC () { 83 }
sub EILSEQ () { 84 }
sub ERESTART () { 85 }
sub ESTRPIPE () { 86 }
sub EUSERS () { 87 }
sub ENOTSOCK () { 88 }
sub EDESTADDRREQ () { 89 }
sub EMSGSIZE () { 90 }
sub EPROTOTYPE () { 91 }
sub ENOPROTOOPT () { 92 }
sub EPROTONOSUPPORT () { 93 }
sub ESOCKTNOSUPPORT () { 94 }
sub ENOTSUP () { 95 }
sub EOPNOTSUPP () { 95 }
sub EPFNOSUPPORT () { 96 }
sub EAFNOSUPPORT () { 97 }
sub EADDRINUSE () { 98 }
sub EADDRNOTAVAIL () { 99 }
sub ENETDOWN () { 100 }
sub ENETUNREACH () { 101 }
sub ENETRESET () { 102 }
sub ECONNABORTED () { 103 }
sub ECONNRESET () { 104 }
sub ENOBUFS () { 105 }
sub EISCONN () { 106 }
sub ENOTCONN () { 107 }
sub ESHUTDOWN () { 108 }
sub ETOOMANYREFS () { 109 }
sub ETIMEDOUT () { 110 }
sub ECONNREFUSED () { 111 }
sub EHOSTDOWN () { 112 }
sub EHOSTUNREACH () { 113 }
sub EALREADY () { 114 }
sub EINPROGRESS () { 115 }
sub ESTALE () { 116 }
sub EUCLEAN () { 117 }
sub ENOTNAM () { 118 }
sub ENAVAIL () { 119 }
sub EISNAM () { 120 }
sub EREMOTEIO () { 121 }
sub EDQUOT () { 122 }
sub ENOMEDIUM () { 123 }
sub EMEDIUMTYPE () { 124 }
sub ECANCELED () { 125 }

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 $r = ref $errname;
    my $proto = !$r || $r eq 'CODE' ? prototype($errname) : undef;
    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 <[e-mail]>

=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