From 4a61c1d265adc3cbfee7edb7ac4abf310735c4a4 Mon Sep 17 00:00:00 2001
From: Huw Davies <huw@codeweavers.com>
Date: Tue, 22 Sep 2009 16:58:24 +0100
Subject: [PATCH] oledb32: Implement DBTYPE_STR and DBTYPE_WSTR src types.

---
 dlls/oledb32/convert.c       | 43 +++++++++++++++++++++++++++++++++++-
 dlls/oledb32/tests/convert.c | 16 --------------
 2 files changed, 42 insertions(+), 17 deletions(-)

diff --git a/dlls/oledb32/convert.c b/dlls/oledb32/convert.c
index f49a699cc11..9803caf61eb 100644
--- a/dlls/oledb32/convert.c
+++ b/dlls/oledb32/convert.c
@@ -25,6 +25,7 @@
 
 #include "windef.h"
 #include "winbase.h"
+#include "winnls.h"
 #include "ole2.h"
 #include "msdadc.h"
 #include "oledberr.h"
@@ -143,7 +144,7 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
     convert *This = impl_from_IDataConvert(iface);
     HRESULT hr;
 
-    TRACE("(%p)->(%d, %d, %d, %p, %p, %p, %d, %d, %p, %d, %d, %x): stub\n", This,
+    TRACE("(%p)->(%d, %d, %d, %p, %p, %p, %d, %d, %p, %d, %d, %x)\n", This,
           src_type, dst_type, src_len, dst_len, src, dst, dst_max_len,
           src_status, dst_status, precision, scale, flags);
 
@@ -155,6 +156,46 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
         return DB_E_UNSUPPORTEDCONVERSION;
     }
 
+    if(src_type == DBTYPE_STR)
+    {
+        BSTR b;
+        DWORD len;
+
+        if(flags & DBDATACONVERT_LENGTHFROMNTS)
+            len = MultiByteToWideChar(CP_ACP, 0, src, -1, NULL, 0) - 1;
+        else
+            len = MultiByteToWideChar(CP_ACP, 0, src, src_len, NULL, 0);
+        b = SysAllocStringLen(NULL, len);
+        if(!b) return E_OUTOFMEMORY;
+        if(flags & DBDATACONVERT_LENGTHFROMNTS)
+            MultiByteToWideChar(CP_ACP, 0, src, -1, b, len + 1);
+        else
+            MultiByteToWideChar(CP_ACP, 0, src, src_len, b, len);
+
+        hr = IDataConvert_DataConvert(iface, DBTYPE_BSTR, dst_type, 0, dst_len,
+                                      &b, dst, dst_max_len, src_status, dst_status,
+                                      precision, scale, flags);
+
+        SysFreeString(b);
+        return hr;
+    }
+
+    if(src_type == DBTYPE_WSTR)
+    {
+        BSTR b;
+
+        if(flags & DBDATACONVERT_LENGTHFROMNTS)
+            b = SysAllocString(src);
+        else
+            b = SysAllocStringLen(src, src_len / 2);
+        if(!b) return E_OUTOFMEMORY;
+        hr = IDataConvert_DataConvert(iface, DBTYPE_BSTR, dst_type, 0, dst_len,
+                                      &b, dst, dst_max_len, src_status, dst_status,
+                                      precision, scale, flags);
+        SysFreeString(b);
+        return hr;
+    }
+
     switch(dst_type)
     {
     case DBTYPE_I4:
diff --git a/dlls/oledb32/tests/convert.c b/dlls/oledb32/tests/convert.c
index acda3a99aa2..7a733c28463 100644
--- a/dlls/oledb32/tests/convert.c
+++ b/dlls/oledb32/tests/convert.c
@@ -541,49 +541,33 @@ todo_wine
     i4 = 0x12345678;
     strcpy((char *)src, "10");
     hr = IDataConvert_DataConvert(convert, DBTYPE_STR, DBTYPE_I4, 2, &dst_len, src, &i4, sizeof(i4), 0, &dst_status, 0, 0, 0);
-todo_wine
-{
     ok(hr == S_OK, "got %08x\n", hr);
     ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
-}
     ok(dst_len == sizeof(i4), "got %d\n", dst_len);
-todo_wine
     ok(i4 == 10, "got %08x\n", i4);
 
     i4 = 0x12345678;
     strcpy((char *)src, "10");
     hr = IDataConvert_DataConvert(convert, DBTYPE_STR, DBTYPE_I4, 0, &dst_len, src, &i4, sizeof(i4), 0, &dst_status, 0, 0, DBDATACONVERT_LENGTHFROMNTS);
-todo_wine
-{
     ok(hr == S_OK, "got %08x\n", hr);
     ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
-}
     ok(dst_len == sizeof(i4), "got %d\n", dst_len);
-todo_wine
     ok(i4 == 10, "got %08x\n", i4);
 
     i4 = 0x12345678;
     memcpy(src, ten, sizeof(ten));
     hr = IDataConvert_DataConvert(convert, DBTYPE_WSTR, DBTYPE_I4, 4, &dst_len, src, &i4, sizeof(i4), 0, &dst_status, 0, 0, 0);
-todo_wine
-{
     ok(hr == S_OK, "got %08x\n", hr);
     ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
-}
     ok(dst_len == sizeof(i4), "got %d\n", dst_len);
-todo_wine
     ok(i4 == 10, "got %08x\n", i4);
 
     i4 = 0x12345678;
     memcpy(src, ten, sizeof(ten));
     hr = IDataConvert_DataConvert(convert, DBTYPE_WSTR, DBTYPE_I4, 0, &dst_len, src, &i4, sizeof(i4), 0, &dst_status, 0, 0, DBDATACONVERT_LENGTHFROMNTS);
-todo_wine
-{
     ok(hr == S_OK, "got %08x\n", hr);
     ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
-}
     ok(dst_len == sizeof(i4), "got %d\n", dst_len);
-todo_wine
     ok(i4 == 10, "got %08x\n", i4);
 
     IDataConvert_Release(convert);