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111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/************************************************
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tcpsocket.c -
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created at: Thu Mar 31 12:21:29 JST 1994
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Copyright (C) 1993-2007 Yukihiro Matsumoto
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************************************************/
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#include "rubysocket.h"
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/*
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* call-seq:
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* TCPSocket.new(remote_host, remote_port, local_host=nil, local_port=nil, connect_timeout: nil)
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*
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* Opens a TCP connection to +remote_host+ on +remote_port+. If +local_host+
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* and +local_port+ are specified, then those parameters are used on the local
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* end to establish the connection.
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*
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* [:connect_timeout] specify the timeout in seconds.
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*/
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static VALUE
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tcp_init(int argc, VALUE *argv, VALUE sock)
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{
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VALUE remote_host, remote_serv;
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VALUE local_host, local_serv;
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VALUE opt;
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static ID keyword_ids[2];
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VALUE kwargs[2];
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VALUE resolv_timeout = Qnil;
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VALUE connect_timeout = Qnil;
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if (!keyword_ids[0]) {
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CONST_ID(keyword_ids[0], "resolv_timeout");
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CONST_ID(keyword_ids[1], "connect_timeout");
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}
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rb_scan_args(argc, argv, "22:", &remote_host, &remote_serv,
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&local_host, &local_serv, &opt);
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if (!NIL_P(opt)) {
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rb_get_kwargs(opt, keyword_ids, 0, 2, kwargs);
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if (kwargs[0] != Qundef) { resolv_timeout = kwargs[0]; }
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if (kwargs[1] != Qundef) { connect_timeout = kwargs[1]; }
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}
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return rsock_init_inetsock(sock, remote_host, remote_serv,
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local_host, local_serv, INET_CLIENT,
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resolv_timeout, connect_timeout);
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}
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static VALUE
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tcp_sockaddr(struct sockaddr *addr, socklen_t len)
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{
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return rsock_make_ipaddr(addr, len);
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}
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/*
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* call-seq:
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* TCPSocket.gethostbyname(hostname) => [official_hostname, alias_hostnames, address_family, *address_list]
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*
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* Use Addrinfo.getaddrinfo instead.
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* This method is deprecated for the following reasons:
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*
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* - The 3rd element of the result is the address family of the first address.
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* The address families of the rest of the addresses are not returned.
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* - gethostbyname() may take a long time and it may block other threads.
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* (GVL cannot be released since gethostbyname() is not thread safe.)
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* - This method uses gethostbyname() function already removed from POSIX.
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*
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* This method lookups host information by _hostname_.
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*
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* TCPSocket.gethostbyname("localhost")
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* #=> ["localhost", ["hal"], 2, "127.0.0.1"]
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*
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*/
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static VALUE
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tcp_s_gethostbyname(VALUE obj, VALUE host)
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{
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rb_warn("TCPSocket.gethostbyname is deprecated; use Addrinfo.getaddrinfo instead.");
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struct rb_addrinfo *res =
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rsock_addrinfo(host, Qnil, AF_UNSPEC, SOCK_STREAM, AI_CANONNAME);
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return rsock_make_hostent(host, res, tcp_sockaddr);
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}
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void
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rsock_init_tcpsocket(void)
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{
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/*
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* Document-class: TCPSocket < IPSocket
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*
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* TCPSocket represents a TCP/IP client socket.
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*
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* A simple client may look like:
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*
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* require 'socket'
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*
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* s = TCPSocket.new 'localhost', 2000
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*
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* while line = s.gets # Read lines from socket
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* puts line # and print them
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* end
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*
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* s.close # close socket when done
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*
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*/
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rb_cTCPSocket = rb_define_class("TCPSocket", rb_cIPSocket);
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rb_define_singleton_method(rb_cTCPSocket, "gethostbyname", tcp_s_gethostbyname, 1);
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rb_define_method(rb_cTCPSocket, "initialize", tcp_init, -1);
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}
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