package Socket;
-use vars qw($VERSION @ISA @EXPORT);
-$VERSION = "1.6";
+use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
+$VERSION = "1.7";
=head1 NAME
$proto = getprotobyname('tcp');
socket(Socket_Handle, PF_INET, SOCK_STREAM, $proto);
- $port = getservbyname('smtp');
+ $port = getservbyname('smtp', 'tcp');
$sin = sockaddr_in($port,inet_aton("127.1"));
$sin = sockaddr_in(7,inet_aton("localhost"));
$sin = sockaddr_in(7,INADDR_LOOPBACK);
far more likely chance of getting the numbers right. This includes
all of the commonly used pound-defines like AF_INET, SOCK_STREAM, etc.
+Also, some common socket "newline" constants are provided: the
+constants C<CR>, C<LF>, and C<CRLF>, as well as C<$CR>, C<$LF>, and
+C<$CRLF>, which map to C<\015>, C<\012>, and C<\015\012>. If you do
+not want to use the literal characters in your programs, then use
+the constants provided here. They are not exported by default, but can
+be imported individually, and with the C<:crlf> export tag:
+
+ use Socket qw(:DEFAULT :crlf);
+
In addition, some structure manipulation functions are available:
=over
SO_USELOOPBACK
);
+@EXPORT_OK = qw(CR LF CRLF $CR $LF $CRLF);
+
+%EXPORT_TAGS = (
+ crlf => [qw(CR LF CRLF $CR $LF $CRLF)],
+ all => [@EXPORT, @EXPORT_OK],
+);
+
+BEGIN {
+ sub CR () {"\015"}
+ sub LF () {"\012"}
+ sub CRLF () {"\015\012"}
+}
+
+*CR = \CR();
+*LF = \LF();
+*CRLF = \CRLF();
+
sub sockaddr_in {
if (@_ == 6 && !wantarray) { # perl5.001m compat; use this && die
my($af, $port, @quad) = @_;