From 66e2139b1a668681e63422cff57ddc2c36859b94 Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 17 Nov 2015 05:06:18 +0000
Subject: * ext/socket/lib/socket.rb (Socket#recvmsg{,_nonblock}): default
 values   of clen must be nil.

* ext/socket/ancdata.c (bsock_sendmsg_internal): handle nil of clen.
  fixes test errors introduced at r52602.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52610 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/socket/ancdata.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ext/socket/ancdata.c')

diff --git a/ext/socket/ancdata.c b/ext/socket/ancdata.c
index 7e0441c042..168f70c311 100644
--- a/ext/socket/ancdata.c
+++ b/ext/socket/ancdata.c
@@ -1467,7 +1467,7 @@ bsock_recvmsg_internal(VALUE sock,
 
     maxdatlen = NUM2SIZET(vmaxdatlen);
 #if defined(HAVE_STRUCT_MSGHDR_MSG_CONTROL)
-    maxctllen = NUM2SIZET(vmaxctllen);
+    maxctllen = NIL_P(vmaxctllen) ? 4096 : NUM2SIZET(vmaxctllen);
 #else
     if (!NIL_P(vmaxctllen))
         rb_raise(rb_eArgError, "control message not supported");
-- 
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