dpnet: Check if DirectPlay is installed (try 2)

[Alistair Leslie-Hughes]

Hi,

Changelog:
       dpnet: Check if DirectPlay is installed


Best Regards
   Alistair Leslie-Hughes
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>From d89a3948698d7ec79a9257abb72e4544086c3fcc Mon Sep 17 00:00:00 2001
From: Alistair Leslie-Hughes <leslie_alistair at hotmail.com>
Date: Mon, 3 Mar 2014 09:58:51 +1100
Subject: [PATCH] Check if DirectPlay is installed
To: wine-patches <wine-patches at winehq.org>

---
 dlls/dpnet/tests/Makefile.in |  2 +-
 dlls/dpnet/tests/peer.c      |  7 +++++++
 dlls/dpnet/tests/server.c    | 49 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/dlls/dpnet/tests/Makefile.in b/dlls/dpnet/tests/Makefile.in
index 9220121..64d7808 100644
--- a/dlls/dpnet/tests/Makefile.in
+++ b/dlls/dpnet/tests/Makefile.in
@@ -1,5 +1,5 @@
 TESTDLL   = dpnet.dll
-IMPORTS   = dpnet ole32
+IMPORTS   = dpnet ole32 version
 
 C_SRCS = \
 	peer.c \
diff --git a/dlls/dpnet/tests/peer.c b/dlls/dpnet/tests/peer.c
index aea67c9..e583430 100644
--- a/dlls/dpnet/tests/peer.c
+++ b/dlls/dpnet/tests/peer.c
@@ -23,6 +23,7 @@
 #include <dplay8.h>
 #include "wine/test.h"
 
+extern BOOL IsStubDLL(const char *filename) DECLSPEC_HIDDEN;
 
 static IDirectPlay8Peer* peer = NULL;
 
@@ -200,6 +201,12 @@ static void test_cleanup_dp(void)
 
 START_TEST(peer)
 {
+    if(IsStubDLL("dpnet.dll"))
+    {
+        win_skip("dpnet not installed.\n");
+        return;
+    }
+
     test_init_dp();
     test_enum_service_providers();
     test_enum_hosts();
diff --git a/dlls/dpnet/tests/server.c b/dlls/dpnet/tests/server.c
index c4de81e..79c163d 100644
--- a/dlls/dpnet/tests/server.c
+++ b/dlls/dpnet/tests/server.c
@@ -96,10 +96,59 @@ static void create_server(void)
     }
 }
 
+/*
+ * We cannot just load a stub dll without triggering the "Feature not Installed"
+ *  dialog.  However we can check if the OrigialName matches a known stub name.
+ */
+BOOL IsStubDLL(const char *filename)
+{
+    DWORD size, ver;
+    BOOL isstub = FALSE;
+
+    size = GetFileVersionInfoSizeA(filename, &ver);
+    ok(size != 0, "failed %d,%d\n", size, GetLastError());
+    if(size != 0)
+    {
+        LPSTR data = HeapAlloc(GetProcessHeap(), 0, size);
+        char *p;
+        UINT translation;
+        char buf[MAX_PATH];
+
+        if (GetFileVersionInfoA(filename, ver, size, data))
+        {
+            VerQueryValueA(data, "\\VarFileInfo\\Translation", (LPVOID*)&p, &size);
+
+            translation = *(UINT *)p;
+            translation = MAKELONG(HIWORD(translation), LOWORD(translation));
+
+            sprintf(buf, "\\StringFileInfo\\%08x\\OriginalFilename", translation);
+            trace("translation: %s\n", buf);
+            if (VerQueryValueA(data, buf, (LPVOID*)&p, &size))
+            {
+                trace("orig: '%s'\n", p);
+                if(lstrcmpiA("wcodstub.dll", p) == 0)
+                {
+                    isstub = TRUE;
+                }
+            }
+        }
+
+        HeapFree(GetProcessHeap(), 0, data);
+    }
+
+    return isstub;
+}
+
 START_TEST(server)
 {
     HRESULT hr;
 
+    if(IsStubDLL("dpnet.dll"))
+    {
+        win_skip("dpnet not installed.\n");
+        return;
+    }
+
     hr = CoInitialize(0);
     ok( hr == S_OK, "failed to init com\n");
     if (hr != S_OK)
-- 
1.8.3.2