merge revision(s) 45084: [Backport ruby#9547]

	* ext/socket/init.c (wait_connectable): break if the socket is
	  writable to avoid infinite loops on FreeBSD and other platforms
	  which conforms to SUSv3.  This problem cannot be reproduced with
	  loopback interfaces, so it's hard to write test code.
	  rsock_connect() and wait_connectable() are overly complicated, so
	  they should be refactored, but I commit this fix as a workaround
	  for the release of Ruby 1.9.3 scheduled on Feb 24.
	  [ruby-core:60940] [Bug ruby#9547]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@45092 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Author: unak

ChangeLog

@@ -1,3 +1,14 @@
+Sat Feb 22 09:51:53 2014  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* ext/socket/init.c (wait_connectable): break if the socket is
+	  writable to avoid infinite loops on FreeBSD and other platforms
+	  which conforms to SUSv3.  This problem cannot be reproduced with
+	  loopback interfaces, so it's hard to write test code.
+	  rsock_connect() and wait_connectable() are overly complicated, so
+	  they should be refactored, but I commit this fix as a workaround
+	  for the release of Ruby 1.9.3 scheduled on Feb 24.
+	  [ruby-core:60940] [Bug #9547]
+
 Sat Feb 22 09:26:05 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* class.c (rb_mod_init_copy): do nothing if copying self.

ext/socket/init.c

@@ -281,8 +281,12 @@ wait_connectable(int fd)
 	     */
 	    if (ret < 0)
 		break;
-	    if (sockerr == 0)
-		continue;	/* workaround for winsock */
+	    if (sockerr == 0) {
+		if (revents & RB_WAITFD_OUT)
+		    break;
+		else
+		    continue;	/* workaround for winsock */
+	    }
 
 	    /* BSD and Linux use sockerr. */
 	    errno = sockerr;

version.h

@@ -1,5 +1,5 @@
 #define RUBY_VERSION "1.9.3"
-#define RUBY_PATCHLEVEL 538
+#define RUBY_PATCHLEVEL 539
 
 #define RUBY_RELEASE_DATE "2014-02-22"
 #define RUBY_RELEASE_YEAR 2014