msi: Make MsiGetComponentState() RPC-compatible.

dlls/msi/install.c

@@ -1359,33 +1359,22 @@ UINT WINAPI MsiGetComponentStateW(MSIHANDLE hInstall, LPCWSTR szComponent,
     TRACE("%d %s %p %p\n", hInstall, debugstr_w(szComponent),
            piInstalled, piAction);
 
+    if (!szComponent)
+        return ERROR_UNKNOWN_COMPONENT;
+
     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
     if (!package)
     {
         MSIHANDLE remote;
-        HRESULT hr;
-        BSTR component;
 
         if (!(remote = msi_get_remote(hInstall)))
             return ERROR_INVALID_HANDLE;
 
-        component = SysAllocString(szComponent);
-        if (!component)
-            return ERROR_OUTOFMEMORY;
-
-        hr = remote_GetComponentState(remote, component, piInstalled, piAction);
-
-        SysFreeString(component);
-
-        if (FAILED(hr))
-        {
-            if (HRESULT_FACILITY(hr) == FACILITY_WIN32)
-                return HRESULT_CODE(hr);
-
-            return ERROR_FUNCTION_FAILED;
-        }
+        /* FIXME: should use SEH */
+        if (!piInstalled || !piAction)
+            return RPC_X_NULL_REF_POINTER;
 
-        return ERROR_SUCCESS;
+        return remote_GetComponentState(remote, szComponent, piInstalled, piAction);
     }
 
     ret = MSI_GetComponentStateW( package, szComponent, piInstalled, piAction);

dlls/msi/package.c

@@ -2534,11 +2534,10 @@ UINT __cdecl remote_SetFeatureState(MSIHANDLE hinst, LPCWSTR feature, INSTALLSTA
     return MsiSetFeatureStateW(hinst, feature, state);
 }
 
-HRESULT __cdecl remote_GetComponentState(MSIHANDLE hinst, BSTR component,
+UINT __cdecl remote_GetComponentState(MSIHANDLE hinst, LPCWSTR component,
                                       INSTALLSTATE *installed, INSTALLSTATE *action)
 {
-    UINT r = MsiGetComponentStateW(hinst, component, installed, action);
-    return HRESULT_FROM_WIN32(r);
+    return MsiGetComponentStateW(hinst, component, installed, action);
 }
 
 HRESULT __cdecl remote_SetComponentState(MSIHANDLE hinst, BSTR component, INSTALLSTATE state)

dlls/msi/tests/custom.c

@@ -655,6 +655,8 @@ static void test_feature_states(MSIHANDLE hinst)
     INSTALLSTATE state, action;
     UINT r;
 
+    /* test feature states */
+
     r = MsiGetFeatureStateA(hinst, NULL, &state, &action);
     ok(hinst, r == ERROR_UNKNOWN_FEATURE, "got %u\n", r);
 
@@ -688,6 +690,35 @@ static void test_feature_states(MSIHANDLE hinst)
     r = MsiGetFeatureStateA(hinst, "One", &state, &action);
     ok(hinst, !r, "got %u\n", r);
     ok(hinst, action == INSTALLSTATE_LOCAL, "got action %d\n", action);
+
+    /* test component states */
+
+    r = MsiGetComponentStateA(hinst, NULL, &state, &action);
+    ok(hinst, r == ERROR_UNKNOWN_COMPONENT, "got %u\n", r);
+
+    r = MsiGetComponentStateA(hinst, "fake", &state, &action);
+    ok(hinst, r == ERROR_UNKNOWN_COMPONENT, "got %u\n", r);
+
+    r = MsiGetComponentStateA(hinst, "One", NULL, &action);
+    ok(hinst, r == RPC_X_NULL_REF_POINTER, "got %u\n", r);
+
+    r = MsiGetComponentStateA(hinst, "One", &state, NULL);
+    ok(hinst, r == RPC_X_NULL_REF_POINTER, "got %u\n", r);
+
+    r = MsiGetComponentStateA(hinst, "One", &state, &action);
+    ok(hinst, !r, "got %u\n", r);
+    ok(hinst, state == INSTALLSTATE_ABSENT, "got state %d\n", state);
+    ok(hinst, action == INSTALLSTATE_LOCAL, "got action %d\n", action);
+
+    r = MsiGetComponentStateA(hinst, "dangler", &state, &action);
+    ok(hinst, !r, "got %u\n", r);
+    ok(hinst, state == INSTALLSTATE_ABSENT, "got state %d\n", state);
+    ok(hinst, action == INSTALLSTATE_UNKNOWN, "got action %d\n", action);
+
+    r = MsiGetComponentStateA(hinst, "component", &state, &action);
+    ok(hinst, !r, "got %u\n", r);
+    ok(hinst, state == INSTALLSTATE_UNKNOWN, "got state %d\n", state);
+    ok(hinst, action == INSTALLSTATE_LOCAL, "got action %d\n", action);
 }
 
 /* Main test. Anything that doesn't depend on a specific install configuration

dlls/msi/winemsi.idl

@@ -83,7 +83,7 @@ interface IWineMsiRemote
     UINT remote_SetMode( [in] MSIHANDLE hinst, [in] MSIRUNMODE mode, [in] BOOL state );
     UINT remote_GetFeatureState( [in] MSIHANDLE hinst, [in, string] LPCWSTR feature, [out] INSTALLSTATE *installed, [out] INSTALLSTATE *action );
     UINT remote_SetFeatureState( [in] MSIHANDLE hinst, [in, string] LPCWSTR feature, [in] INSTALLSTATE state );
-    HRESULT remote_GetComponentState( [in] MSIHANDLE hinst, [in] BSTR component, [out] INSTALLSTATE *installed, [out] INSTALLSTATE *action );
+    UINT remote_GetComponentState( [in] MSIHANDLE hinst, [in, string] LPCWSTR component, [out] INSTALLSTATE *installed, [out] INSTALLSTATE *action );
     HRESULT remote_SetComponentState( [in] MSIHANDLE hinst, [in] BSTR component, [in] INSTALLSTATE state );
     HRESULT remote_GetLanguage( [in] MSIHANDLE hinst, [out] LANGID *language );
     HRESULT remote_SetInstallLevel( [in] MSIHANDLE hinst, [in] int level );