From 57440b86e2c62c78f3904abb17f11500ba0a1a6f Mon Sep 17 00:00:00 2001
From: Steven McCoy <steven.mccoy@miru.hk>
Date: Mon, 15 Aug 2011 08:56:00 +0200
Subject: Add IPv6 support to tcp_listener

Signed-off-by: Steven McCoy <steven.mccoy@miru.hk>
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
---
 src/ip.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'src/ip.cpp')

diff --git a/src/ip.cpp b/src/ip.cpp
index f47e9bf..4bacff3 100644
--- a/src/ip.cpp
+++ b/src/ip.cpp
@@ -457,4 +457,21 @@ void zmq::unblock_socket (fd_t s_)
 #endif
 }
 
+void zmq::enable_ipv4_mapping (fd_t s_)
+{
+#ifdef IPV6_V6ONLY
+#ifdef ZMQ_HAVE_WINDOWS
+    DWORD flag = 0;
+#else
+    int flag = 0;
+#endif
+    int rc = setsockopt (s_, IPPROTO_IPV6, IPV6_V6ONLY, (const char*) &flag,
+        sizeof (flag));
+#ifdef ZMQ_HAVE_WINDOWS
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    errno_assert (rc == 0);
+#endif
+#endif
+}
 
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