зеркало из https://github.com/github/ruby.git
83 строки
2.1 KiB
C
83 строки
2.1 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)
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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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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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rb_scan_args(argc, argv, "22", &remote_host, &remote_serv,
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&local_host, &local_serv);
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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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}
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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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* 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_secure(3);
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return rsock_make_hostent(host, rsock_addrinfo(host, Qnil, SOCK_STREAM, AI_CANONNAME),
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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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