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oledb32: Implement conversions to DBTYPE_WSTR.

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This commit is contained in:
Huw Davies 2009-09-24 12:20:10 +01:00 committed by Alexandre Julliard
parent a2e069b159
commit 91ef7037b7
2 changed files with 158 additions and 0 deletions
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35
dlls/oledb32/convert.c
View File

@ -128,6 +128,8 @@ static int get_length(DBTYPE type)
return 8;
case DBTYPE_BSTR:
return sizeof(BSTR);
case DBTYPE_WSTR:
return 0;
default:
FIXME("Unhandled type %04x\n", type);
return 0;
@ -277,6 +279,39 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
}
break;
}
case DBTYPE_WSTR:
{
BSTR b;
DBLENGTH bstr_len;
INT bytes_to_copy;
hr = IDataConvert_DataConvert(iface, src_type, DBTYPE_BSTR, src_len, &bstr_len,
src, &b, sizeof(BSTR), src_status, dst_status,
precision, scale, flags);
if(hr != S_OK) return hr;
bstr_len = SysStringLen(b);
*dst_len = bstr_len * sizeof(WCHAR); /* Doesn't include size for '\0' */
*dst_status = DBSTATUS_S_OK;
bytes_to_copy = min(*dst_len + sizeof(WCHAR), dst_max_len);
if(dst)
{
if(bytes_to_copy >= sizeof(WCHAR))
{
memcpy(dst, b, bytes_to_copy - sizeof(WCHAR));
*((WCHAR*)dst + bytes_to_copy / sizeof(WCHAR) - 1) = 0;
if(bytes_to_copy < *dst_len + sizeof(WCHAR))
*dst_status = DBSTATUS_S_TRUNCATED;
}
else
{
*dst_status = DBSTATUS_E_DATAOVERFLOW;
hr = DB_E_ERRORSOCCURRED;
}
}
SysFreeString(b);
return hr;
}
default:
FIXME("Unimplemented conversion %04x -> %04x\n", src_type, dst_type);
return E_NOTIMPL;

123
dlls/oledb32/tests/convert.c
View File

@ -900,6 +900,128 @@ static void test_converttobstr(void)
IDataConvert_Release(convert);
}
static void test_converttowstr(void)
{
IDataConvert *convert;
HRESULT hr;
WCHAR dst[100];
BYTE src[20];
DBSTATUS dst_status;
DBLENGTH dst_len;
static const WCHAR ten[] = {'1','0',0};
static const WCHAR fourthreetwoone[] = {'4','3','2','1',0};
BSTR b;
hr = CoCreateInstance(&CLSID_OLEDB_CONVERSIONLIBRARY, NULL, CLSCTX_INPROC_SERVER, &IID_IDataConvert, (void**)&convert);
if(FAILED(hr))
{
win_skip("Unable to load oledb conversion library\n");
return;
}
memset(dst, 0xcc, sizeof(dst));
hr = IDataConvert_DataConvert(convert, DBTYPE_EMPTY, DBTYPE_WSTR, 0, &dst_len, src, dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
ok(dst_len == 0, "got %d\n", dst_len);
ok(dst[0] == 0, "got %02x\n", dst[0]);
ok(dst[1] == 0xcccc, "got %02x\n", dst[1]);
memset(dst, 0xcc, sizeof(dst));
hr = IDataConvert_DataConvert(convert, DBTYPE_NULL, DBTYPE_WSTR, 0, &dst_len, src, dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
ok(hr == DB_E_UNSUPPORTEDCONVERSION, "got %08x\n", hr);
ok(dst_status == DBSTATUS_E_BADACCESSOR, "got %08x\n", dst_status);
ok(dst_len == 0, "got %d\n", dst_len);
ok(dst[0] == 0xcccc, "got %02x\n", dst[0]);
*(short *)src = 4321;
hr = IDataConvert_DataConvert(convert, DBTYPE_I2, DBTYPE_WSTR, 0, &dst_len, src, dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
ok(dst_len == 8, "got %d\n", dst_len);
ok(!lstrcmpW(dst, fourthreetwoone), "got %s\n", wine_dbgstr_w(dst));
*(short *)src = 4321;
memset(dst, 0xcc, sizeof(dst));
hr = IDataConvert_DataConvert(convert, DBTYPE_I2, DBTYPE_WSTR, 0, &dst_len, src, dst, 0, 0, &dst_status, 0, 0, 0);
ok(hr == DB_E_ERRORSOCCURRED, "got %08x\n", hr);
ok(dst_status == DBSTATUS_E_DATAOVERFLOW, "got %08x\n", dst_status);
ok(dst_len == 8, "got %d\n", dst_len);
ok(dst[0] == 0xcccc, "got %02x\n", dst[0]);
*(short *)src = 4321;
memset(dst, 0xcc, sizeof(dst));
hr = IDataConvert_DataConvert(convert, DBTYPE_I2, DBTYPE_WSTR, 0, &dst_len, src, NULL, 0, 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
ok(dst_len == 8, "got %d\n", dst_len);
ok(dst[0] == 0xcccc, "got %02x\n", dst[0]);
*(short *)src = 4321;
memset(dst, 0xcc, sizeof(dst));
hr = IDataConvert_DataConvert(convert, DBTYPE_I2, DBTYPE_WSTR, 0, &dst_len, src, dst, 4, 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
ok(dst_len == 8, "got %d\n", dst_len);
ok(dst[0] == '4', "got %02x\n", dst[0]);
ok(dst[1] == 0, "got %02x\n", dst[1]);
ok(dst[2] == 0xcccc, "got %02x\n", dst[2]);
*(short *)src = 4321;
memset(dst, 0xcc, sizeof(dst));
hr = IDataConvert_DataConvert(convert, DBTYPE_I2, DBTYPE_WSTR, 0, &dst_len, src, dst, 2, 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
ok(dst_len == 8, "got %d\n", dst_len);
ok(dst[0] == 0, "got %02x\n", dst[0]);
ok(dst[1] == 0xcccc, "got %02x\n", dst[1]);
*(short *)src = 4321;
memset(dst, 0xcc, sizeof(dst));
hr = IDataConvert_DataConvert(convert, DBTYPE_I2, DBTYPE_WSTR, 0, &dst_len, src, dst, 8, 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_TRUNCATED, "got %08x\n", dst_status);
ok(dst_len == 8, "got %d\n", dst_len);
ok(dst[0] == '4', "got %02x\n", dst[0]);
ok(dst[1] == '3', "got %02x\n", dst[1]);
ok(dst[2] == '2', "got %02x\n", dst[2]);
ok(dst[3] == 0, "got %02x\n", dst[3]);
ok(dst[4] == 0xcccc, "got %02x\n", dst[4]);
b = SysAllocString(ten);
*(BSTR *)src = b;
hr = IDataConvert_DataConvert(convert, DBTYPE_BSTR, DBTYPE_WSTR, 0, &dst_len, src, dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
ok(dst_len == 4, "got %d\n", dst_len);
ok(!lstrcmpW(b, dst), "got %s\n", wine_dbgstr_w(dst));
SysFreeString(b);
memcpy(src, ten, sizeof(ten));
hr = IDataConvert_DataConvert(convert, DBTYPE_WSTR, DBTYPE_WSTR, 2, &dst_len, src, dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
ok(dst_len == 2, "got %d\n", dst_len);
ok(dst[0] == '1', "got %02x\n", dst[0]);
ok(dst[1] == 0, "got %02x\n", dst[1]);
memcpy(src, ten, sizeof(ten));
hr = IDataConvert_DataConvert(convert, DBTYPE_WSTR, DBTYPE_WSTR, 4, &dst_len, src, dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
ok(dst_len == 4, "got %d\n", dst_len);
ok(!lstrcmpW(ten, dst), "got %s\n", wine_dbgstr_w(dst));
memcpy(src, ten, sizeof(ten));
hr = IDataConvert_DataConvert(convert, DBTYPE_WSTR, DBTYPE_WSTR, 0, &dst_len, src, dst, sizeof(dst), 0, &dst_status, 0, 0, DBDATACONVERT_LENGTHFROMNTS);
ok(hr == S_OK, "got %08x\n", hr);
ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
ok(dst_len == 4, "got %d\n", dst_len);
ok(!lstrcmpW(ten, dst), "got %s\n", wine_dbgstr_w(dst));
IDataConvert_Release(convert);
}
START_TEST(convert)
{
@ -909,5 +1031,6 @@ START_TEST(convert)
test_converttoi2();
test_converttoi4();
test_converttobstr();
test_converttowstr();
OleUninitialize();
}