import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

netwerk/socket/nsUDPSocketProvider.cpp

@@ -0,0 +1,50 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsUDPSocketProvider.h"
+
+#include "nspr.h"
+
+using mozilla::NeckoOriginAttributes;
+
+NS_IMPL_ISUPPORTS(nsUDPSocketProvider, nsISocketProvider)
+
+nsUDPSocketProvider::~nsUDPSocketProvider()
+{
+}
+
+NS_IMETHODIMP 
+nsUDPSocketProvider::NewSocket(int32_t aFamily,
+                               const char *aHost, 
+                               int32_t aPort, 
+                               nsIProxyInfo *aProxy,
+                               const NeckoOriginAttributes &originAttributes,
+                               uint32_t aFlags,
+                               PRFileDesc * *aFileDesc, 
+                               nsISupports **aSecurityInfo)
+{
+    NS_ENSURE_ARG_POINTER(aFileDesc);
+  
+    PRFileDesc* udpFD = PR_OpenUDPSocket(aFamily);
+    if (!udpFD)
+        return NS_ERROR_FAILURE;
+  
+    *aFileDesc = udpFD;
+    return NS_OK;
+}
+
+NS_IMETHODIMP 
+nsUDPSocketProvider::AddToSocket(int32_t aFamily,
+                                 const char *aHost,
+                                 int32_t aPort,
+                                 nsIProxyInfo *aProxy,
+                                 const NeckoOriginAttributes &originAttributes,
+                                 uint32_t aFlags,
+                                 struct PRFileDesc * aFileDesc,
+                                 nsISupports **aSecurityInfo)
+{
+    // does not make sense to strap a UDP socket onto an existing socket
+    NS_NOTREACHED("Cannot layer UDP socket on an existing socket");
+    return NS_ERROR_UNEXPECTED;
+}