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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2މ$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙpackage Net::protoent; use strict; use 5.006_001; our $VERSION = '1.01'; our(@EXPORT, @EXPORT_OK, %EXPORT_TAGS); our ( $p_name, @p_aliases, $p_proto ); BEGIN { use Exporter (); @EXPORT = qw(getprotobyname getprotobynumber getprotoent getproto); @EXPORT_OK = qw( $p_name @p_aliases $p_proto ); %EXPORT_TAGS = ( FIELDS => [ @EXPORT_OK, @EXPORT ] ); } # Class::Struct forbids use of @ISA sub import { goto &Exporter::import } use Class::Struct qw(struct); struct 'Net::protoent' => [ name => '$', aliases => '@', proto => '$', ]; sub populate (@) { return unless @_; my $pob = new(); $p_name = $pob->[0] = $_[0]; @p_aliases = @{ $pob->[1] } = split ' ', $_[1]; $p_proto = $pob->[2] = $_[2]; return $pob; } sub getprotoent ( ) { populate(CORE::getprotoent()) } sub getprotobyname ($) { populate(CORE::getprotobyname(shift)) } sub getprotobynumber ($) { populate(CORE::getprotobynumber(shift)) } sub getproto ($;$) { no strict 'refs'; return &{'getprotoby' . ($_[0]=~/^\d+$/ ? 'number' : 'name')}(@_); } 1; __END__ =head1 NAME Net::protoent - by-name interface to Perl's built-in getproto*() functions =head1 SYNOPSIS use Net::protoent; $p = getprotobyname(shift || 'tcp') || die "no proto"; printf "proto for %s is %d, aliases are %s\n", $p->name, $p->proto, "@{$p->aliases}"; use Net::protoent qw(:FIELDS); getprotobyname(shift || 'tcp') || die "no proto"; print "proto for $p_name is $p_proto, aliases are @p_aliases\n"; =head1 DESCRIPTION This module's default exports override the core getprotoent(), getprotobyname(), and getnetbyport() functions, replacing them with versions that return "Net::protoent" objects. They take default second arguments of "tcp". This object has methods that return the similarly named structure field name from the C's protoent structure from F; namely name, aliases, and proto. The aliases method returns an array reference, the rest scalars. You may also import all the structure fields directly into your namespace as regular variables using the :FIELDS import tag. (Note that this still overrides your core functions.) Access these fields as variables named with a preceding C. Thus, C<$proto_obj-Ename()> corresponds to $p_name if you import the fields. Array references are available as regular array variables, so for example C<@{ $proto_obj-Ealiases() }> would be simply @p_aliases. The getproto() function is a simple front-end that forwards a numeric argument to getprotobyport(), and the rest to getprotobyname(). To access this functionality without the core overrides, pass the C an empty import list, and then access function functions with their full qualified names. On the other hand, the built-ins are still available via the C pseudo-package. =head1 NOTE While this class is currently implemented using the Class::Struct module to build a struct-like class, you shouldn't rely upon this. =head1 AUTHOR Tom Christiansen