Index: win32/win32.c
===================================================================
--- win32/win32.c       (révision 13588)
+++ win32/win32.c       (copie de travail)
@@ -2244,7 +2244,7 @@
     // initalize the winsock interface and insure that it's
     // cleaned up at exit.
     //
-    version = MAKEWORD(2, 0);
+    version = MAKEWORD(2, 2);
     if (WSAStartup(version, &retdata))
        rb_fatal ("Unable to locate winsock library!\n");
     if (LOBYTE(retdata.wVersion) != 2)
Index: ext/socket/extconf.rb
===================================================================
--- ext/socket/extconf.rb       (révision 13588)
+++ ext/socket/extconf.rb       (copie de travail)
@@ -33,8 +33,15 @@
 default_ipv6 = /cygwin/ !~ RUBY_PLATFORM
 if enable_config("ipv6", default_ipv6)
   if checking_for("ipv6") {try_link(<<EOF)}
+#ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <winsock2.h>
+#include <WS2tcpip.h>
+#include <windows.h>
+#else
 #include <sys/types.h>
 #include <sys/socket.h>
+#endif
 main()
 {
   socket(AF_INET6, SOCK_STREAM, 0);
@@ -107,6 +114,12 @@
 getaddr_info_ok = enable_config("wide-getaddrinfo") do
   checking_for("wide getaddrinfo") {try_run(<<EOF)}
 #{cpp_include(headers)}
+#ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <winsock2.h>
+#include <WS2tcpip.h>
+#include <windows.h>
+#endif
 #include <stdlib.h>

 #ifndef EXIT_SUCCESS
@@ -126,6 +139,18 @@
   struct addrinfo hints, *ai, *aitop;
   char straddr[INET6_ADDRSTRLEN], strport[16];

+#ifdef _WIN32
+  WORD version;
+  WSADATA retdata;
+
+  version = MAKEWORD(2, 2);
+  if (WSAStartup(version, &retdata) || (LOBYTE(retdata.wVersion) != 2))
+  {
+    printf("Unable to locate winsock library!");
+    goto bad;
+  }
+#endif
+
   for (passive = 0; passive <= 1; passive++) {
     memset(&hints, 0, sizeof(hints));
     hints.ai_family = AF_UNSPEC;
@@ -199,11 +224,17 @@

   if (aitop)
     freeaddrinfo(aitop);
+#ifdef _WIN32
+  WSACleanup();
+#endif
   exit(EXIT_SUCCESS);

  bad:
   if (aitop)
     freeaddrinfo(aitop);
+#ifdef _WIN32
+  WSACleanup();
+#endif
   exit(EXIT_FAILURE);
 }
 EOF
@@ -216,6 +247,8 @@
 you cannot compile IPv6 socket classes with broken these functions.
 You can try --enable-wide-getaddrinfo.
 EOS
+else
+  $defs << "-DHAVE_GETADDRINFO"
 end

 case with_config("lookup-order-hack", "UNSPEC")
@@ -234,7 +267,12 @@

 $objs = ["socket.#{$OBJEXT}"]

-unless getaddr_info_ok and have_func("getnameinfo", "netdb.h") and have_func("getaddrinfo", "netdb.
h")
+unless getaddr_info_ok
+  unless $mswin or $bccwin or $mingw
+    have_func("getnameinfo", "netdb.h") and have_func("getaddrinfo", "netdb.h")
+  else
+    have_func("getnameinfo", "WS2tcpip.h") and have_func("getaddrinfo", "WS2tcpip.h")
+  end
   if have_struct_member("struct in6_addr", "s6_addr8", headers)
     $defs[-1] = "-DHAVE_ADDR8"
   end
@@ -248,9 +286,11 @@
   have_header("resolv.h")
 end

+unless $mswin or $bccwin or $mingw
 unless have_type("socklen_t", headers)
   $defs << "-Dsocklen_t=int"
 end
+end

 have_header("sys/un.h")
 have_header("sys/uio.h")
Index: ext/socket/socket.c
===================================================================
--- ext/socket/socket.c (révision 13588)
+++ ext/socket/socket.c (copie de travail)
@@ -25,6 +25,10 @@
 #include <sys/uio.h>
 #endif

+#ifdef _WIN32
+#include <WS2tcpip.h>
+#endif
+
 #ifndef _WIN32
 #if defined(__BEOS__)
 # include <net/socket.h>
@@ -2185,6 +2189,10 @@
        ptr = RSTRING_PTR(domain);
        if (strcmp(ptr, "AF_INET") == 0)
            *dv = AF_INET;
+#ifdef AF_INET6
+       else if (strcmp(ptr, "AF_INET6") == 0)
+           *dv = AF_INET6;
+#endif
 #ifdef AF_UNIX
        else if (strcmp(ptr, "AF_UNIX") == 0)
            *dv = AF_UNIX;
@@ -2205,6 +2213,10 @@
        else if (strcmp(ptr, "PF_INET") == 0)
            *dv = PF_INET;
 #endif
+#ifdef PF_INET6
+       else if (strcmp(ptr, "PF_INET6") == 0)
+           *dv = PF_INET6;
+#endif
 #ifdef PF_UNIX
        else if (strcmp(ptr, "PF_UNIX") == 0)
            *dv = PF_UNIX;