SOCKS is an Internet protocol that routes packets between a client and a server through a proxy server. SOCKS5, if supported, additionally provides authentication so only authorized users may access a server.
Opens a SOCKS connection to host via the SOCKS server serv.
 
               static VALUE
socks_init(VALUE sock, VALUE host, VALUE serv)
{
    static int init = 0;
    if (init == 0) {
        SOCKSinit("ruby");
        init = 1;
    }
    return rsock_init_inetsock(sock, host, serv, Qnil, Qnil, INET_SOCKS);
}