update doc.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27009 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/socket/basicsocket.c

@@ -348,6 +348,8 @@ bsock_getsockopt(VALUE sock, VALUE lev, VALUE optname)
  *   TCPServer.open("127.0.0.1", 15120) {|serv|
  *     p serv.getsockname #=> "\x02\x00;\x10\x7F\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00"
  *   }
+ *
+ * If Addrinfo object is preferred, use BasicSocket#local_address.
  */
 static VALUE
 bsock_getsockname(VALUE sock)
@@ -374,6 +376,8 @@ bsock_getsockname(VALUE sock)
  *     p s.getpeername #=> "\x02\x00\x82u\x7F\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00"
  *   }
  *
+ * If Addrinfo object is preferred, use BasicSocket#remote_address.
+ *
  */
 static VALUE
 bsock_getpeername(VALUE sock)

ext/socket/ipsocket.c

@@ -264,7 +264,7 @@ ip_recvfrom(int argc, VALUE *argv, VALUE sock)
  * call-seq:
  *   IPSocket.getaddress(host)        => ipaddress
  *
- * Lookups IP address of _host_.
+ * Lookups the IP address of _host_.
  *
  *   IPSocket.getaddress("localhost")     #=> "127.0.0.1"
  *   IPSocket.getaddress("ip6-localhost") #=> "::1"

ext/socket/socket.c

@@ -1097,6 +1097,8 @@ sock_s_getservbyport(int argc, VALUE *argv)
  *   +true+, +:hostname+:  hostname is obtained from numeric address using reverse lookup, which may take a time.
  *   +false+, +:numeric+:  hostname is same as numeric address.
  *   +nil+:              obey to the current +do_not_reverse_lookup+ flag.
+ *
+ * If Addrinfo object is preferred, use Addrinfo.getaddrinfo.
  */
 static VALUE
 sock_s_getaddrinfo(int argc, VALUE *argv)
@@ -1147,6 +1149,8 @@ sock_s_getaddrinfo(int argc, VALUE *argv)
  *   Socket.getnameinfo(Socket.sockaddr_in(80, "127.0.0.1"))       #=> ["localhost", "www"]
  *   Socket.getnameinfo(["AF_INET", 80, "127.0.0.1"])              #=> ["localhost", "www"]
  *   Socket.getnameinfo(["AF_INET", 80, "localhost", "127.0.0.1"]) #=> ["localhost", "www"]
+ *
+ * If Addrinfo object is preferred, use Addrinfo#getnameinfo.
  */
 static VALUE
 sock_s_getnameinfo(int argc, VALUE *argv)
@@ -1798,6 +1802,15 @@ socket_s_ip_address_list(VALUE self)
  * information on particular exception is needed please refer to the 
  * Unix manual pages or the Windows WinSock reference.
  * 
+ * === Convenient methods
+ *
+ * Although the general way to create socket is Socket.new,
+ * there are several methods for socket creation for most cases.
+ *
+ * * TCP client socket: Socket.tcp, TCPSocket.open
+ * * TCP server socket: Socket.tcp_server_loop, TCPServer.open
+ * * UNIX client socket: Socket.unix, UNIXSocket.open
+ * * UNIX server socket: Socket.unix_server_loop, UNIXServer.open
  * 
  * === Documentation by
  * * Zach Dennis

lib/resolv-replace.rb

@@ -2,7 +2,9 @@ require 'socket'
 require 'resolv'
 
 class << IPSocket
+  # :stopdoc:
   alias original_resolv_getaddress getaddress
+  # :startdoc:
   def getaddress(host)
     begin
       return Resolv.getaddress(host).to_s
@@ -13,7 +15,9 @@ class << IPSocket
 end
 
 class TCPSocket < IPSocket
+  # :stopdoc:
   alias original_resolv_initialize initialize
+  # :startdoc:
   def initialize(host, serv, *rest)
     rest[0] = IPSocket.getaddress(rest[0]) unless rest.empty?
     original_resolv_initialize(IPSocket.getaddress(host), serv, *rest)
@@ -21,18 +25,24 @@ class TCPSocket < IPSocket
 end
 
 class UDPSocket < IPSocket
+  # :stopdoc:
   alias original_resolv_bind bind
+  # :startdoc:
   def bind(host, port)
     host = IPSocket.getaddress(host) if host != ""
     original_resolv_bind(host, port)
   end
 
+  # :stopdoc:
   alias original_resolv_connect connect
+  # :startdoc:
   def connect(host, port)
     original_resolv_connect(IPSocket.getaddress(host), port)
   end
 
+  # :stopdoc:
   alias original_resolv_send send
+  # :startdoc:
   def send(mesg, flags, *rest)
     if rest.length == 2
       host, port = rest
@@ -56,7 +66,9 @@ class UDPSocket < IPSocket
 end
 
 class SOCKSSocket < TCPSocket
+  # :stopdoc:
   alias original_resolv_initialize initialize
+  # :startdoc:
   def initialize(host, serv)
     original_resolv_initialize(IPSocket.getaddress(host), port)
   end