If you add
use warnings; to the top of your code after
use strict; you will find you get this error:
Argument "^E" isn't numeric in integer eq (==) at ./try.pl line 40.
When you do your connect. This could be a big clue for you :o)
use warnings; is your friend!
I think this should do what you want it to:
if ( $ver =~ /\x05/ && $nm ) {
or even:
my $x05 = sprintf "\x05"; # hex 05 as a raw character for ver test.
for ( ; my $paddr = accept( CLIENT, SERVER ); close CLIENT ) {
my ( $ver, $nm, $methods ) = ();
recv( CLIENT, $ver, 1, 0 );
recv( CLIENT, $nm, 1, 0 );
if ( $ver eq $x05 && $nm ) {
print "Okay, getting $nm methods\n";
recv( CLIENT, $methods, $nm, 0 );
}
}
PS: your debugging could also be easier if you format your die statements more helpfully:
socket( SERVER, PF_INET, SOCK_STREAM, $proto ) ||
die "Can't create socket: $!\n";
setsockopt( SERVER, SOL_SOCKET, SO_REUSEADDR, pack( "l", 1 ) ) ||
die "Can't set socket option: $!\n";
bind( SERVER, sockaddr_in( $port, INADDR_ANY ) ) ||
die "Can't bind to socket: $!\n";
listen( SERVER, SOMAXCONN ) ||
die "Can't set max connections (listen): $!\n";