Re: sockets in PERL

Otis Gospodnetic (otisg@panther.middlebury.edu)
Thu, 31 Oct 1996 19:24:55 +1900 (EST)


at the prompt type this:

perldoc Socket

it will save you a lot of trouble.

Otis

>
> Currently writing a PERL proxy-server for ActiveAgent, so that
> it will not be tied to those browsers which implement a liberal
> Java security manager. Since applets are sometimes not allowed
> to connect to URLs, one must provide a server-CGI to do it for
> them.
>
> My problem is getting a socket active in PERL. Never written it
> before, and just can't make heads or tails of these Unix-system
> calls. Does anybody know about this networking stuff?
>
> Specifically, my code looks like:
>
> $AF_INET = 2;
> $SOCK_STREAM = 1;
> $sock_addr = 'S n a4 x8';
> (($name, $aliases, $proto) = getprotobyname('tcp')) ||
> die "getprotobyname fail ($!): $name";
>
> (($name, $aliases, $type, $len, $thataddr) =
> gethostbyname($server_name)) ||
> die "gethostbyname fail ($!): $server_name";
>
> $that = pack($sockaddr, $AF_INET, $port, $thataddr);
> socket(S, $AF_INET, $SOCK_STREAM, $proto) ||
> die "socket fail ($!): $proto $server_name";
>
> It takes the DIE on the socket call, with a message that the
> TCP protocol is not supported. Obviously, this is a bit of
> an obtuse question, but it seems like some of y'all are Unix
> PERL-heads. Any ideas? BTW, had to run H2PH myself, and did
> not know exactly what that did, but it seemed to create the
> proper include files (PERL thought so, and used them).
>
> ... Robert
>

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