dpnet: Improve error checking in Get/Set SP.

dlls/dpnet/address.c

@@ -166,12 +166,18 @@ static HRESULT WINAPI IDirectPlay8AddressImpl_GetURLA(IDirectPlay8Address *iface
 
 static HRESULT WINAPI IDirectPlay8AddressImpl_GetSP(IDirectPlay8Address *iface, GUID *pguidSP)
 {
-  IDirectPlay8AddressImpl *This = impl_from_IDirectPlay8Address(iface);
+    IDirectPlay8AddressImpl *This = impl_from_IDirectPlay8Address(iface);
 
-  TRACE("(%p, %p)\n", iface, pguidSP);
+    TRACE("(%p, %p)\n", iface, pguidSP);
 
-  *pguidSP = This->SP_guid;
-  return DPN_OK; 
+    if(!pguidSP)
+        return DPNERR_INVALIDPOINTER;
+
+    if(!This->init)
+        return DPNERR_DOESNOTEXIST;
+
+    *pguidSP = This->SP_guid;
+    return DPN_OK;
 }
 
 static HRESULT WINAPI IDirectPlay8AddressImpl_GetUserData(IDirectPlay8Address *iface,
@@ -185,12 +191,16 @@ static HRESULT WINAPI IDirectPlay8AddressImpl_GetUserData(IDirectPlay8Address *i
 static HRESULT WINAPI IDirectPlay8AddressImpl_SetSP(IDirectPlay8Address *iface,
         const GUID *const pguidSP)
 {
-  IDirectPlay8AddressImpl *This = impl_from_IDirectPlay8Address(iface);
+    IDirectPlay8AddressImpl *This = impl_from_IDirectPlay8Address(iface);
 
-  TRACE("(%p, %s)\n", iface, debugstr_SP(pguidSP));
+    TRACE("(%p, %s)\n", iface, debugstr_SP(pguidSP));
 
-  This->SP_guid = *pguidSP;
-  return DPN_OK; 
+    if(!pguidSP)
+        return DPNERR_INVALIDPOINTER;
+
+    This->init = TRUE;
+    This->SP_guid = *pguidSP;
+    return DPN_OK;
 }
 
 static HRESULT WINAPI IDirectPlay8AddressImpl_SetUserData(IDirectPlay8Address *iface,

dlls/dpnet/dpnet_private.h

@@ -64,7 +64,7 @@ struct IDirectPlay8AddressImpl
   LONG ref;
   /* IDirectPlay8Address fields */
   GUID SP_guid;
-  const WCHAR *url;
+  BOOL init;
 };
 
 /*****************************************************************************

dlls/dpnet/tests/Makefile.in

@@ -1,6 +1,7 @@
 TESTDLL   = dpnet.dll
-IMPORTS   = dpnet ole32 dxguid
+IMPORTS   = dxguid uuid dpnet ole32
 
 C_SRCS = \
+	address.c \
 	peer.c \
 	server.c

dlls/dpnet/tests/address.c

@@ -0,0 +1,82 @@
+/*
+ * Copyright 2014 Alistair Leslie-Hughes
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#define WIN32_LEAN_AND_MEAN
+#include <stdio.h>
+
+#include <dplay8.h>
+#include "wine/test.h"
+
+/* {6733C6E8-A0D6-450E-8C18-CEACF331DC27} */
+static const GUID IID_Random = {0x6733c6e8, 0xa0d6, 0x450e, { 0x8c, 0x18, 0xce, 0xac, 0xf3, 0x31, 0xdc, 0x27 } };
+
+static void create_directplay_address(void)
+{
+    HRESULT hr;
+    IDirectPlay8Address *localaddr = NULL;
+
+    hr = CoCreateInstance( &CLSID_DirectPlay8Address, NULL, CLSCTX_ALL, &IID_IDirectPlay8Address, (LPVOID*)&localaddr);
+    ok(hr == S_OK, "Failed to create IDirectPlay8Address object");
+    if(SUCCEEDED(hr))
+    {
+        GUID guidsp;
+
+        hr = IDirectPlay8Address_GetSP(localaddr, NULL);
+        ok(hr == DPNERR_INVALIDPOINTER, "GetSP failed 0x%08x\n", hr);
+
+        hr = IDirectPlay8Address_GetSP(localaddr, &guidsp);
+        ok(hr == DPNERR_DOESNOTEXIST, "got 0x%08x\n", hr);
+
+        hr = IDirectPlay8Address_SetSP(localaddr, &GUID_NULL);
+        ok(hr == S_OK, "got 0x%08x\n", hr);
+
+        hr = IDirectPlay8Address_GetSP(localaddr, &guidsp);
+        ok(hr == S_OK, "got 0x%08x\n", hr);
+        ok(IsEqualGUID(&guidsp, &GUID_NULL), "wrong guid: %s\n", wine_dbgstr_guid(&guidsp));
+
+        hr = IDirectPlay8Address_SetSP(localaddr, &IID_Random);
+        ok(hr == S_OK, "got 0x%08x\n", hr);
+
+        hr = IDirectPlay8Address_GetSP(localaddr, &guidsp);
+        ok(hr == S_OK, "got 0x%08x\n", hr);
+        ok(IsEqualGUID(&guidsp, &IID_Random), "wrong guid: %s\n", wine_dbgstr_guid(&guidsp));
+
+        hr = IDirectPlay8Address_SetSP(localaddr, &CLSID_DP8SP_TCPIP);
+        ok(hr == S_OK, "got 0x%08x\n", hr);
+
+        hr = IDirectPlay8Address_GetSP(localaddr, &guidsp);
+        ok(hr == S_OK, "got 0x%08x\n", hr);
+        ok(IsEqualGUID(&guidsp, &CLSID_DP8SP_TCPIP), "wrong guid: %s\n", wine_dbgstr_guid(&guidsp));
+
+        IDirectPlay8Address_Release(localaddr);
+    }
+}
+
+START_TEST(address)
+{
+    HRESULT hr;
+
+    hr = CoInitialize(0);
+    ok(hr == S_OK, "failed to init com\n");
+    if(hr != S_OK)
+        return;
+
+    create_directplay_address();
+
+    CoUninitialize();
+}