| /* OLE DB Conversion library |
| * |
| * Copyright 2009 Huw Davies |
| * |
| * 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 |
| */ |
| |
| #include <stdarg.h> |
| |
| #define COBJMACROS |
| #define NONAMELESSUNION |
| #define NONAMELESSSTRUCT |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winnls.h" |
| #include "ole2.h" |
| #include "msdadc.h" |
| #include "oledberr.h" |
| |
| #include "oledb_private.h" |
| |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(oledb); |
| |
| typedef struct |
| { |
| const struct IDataConvertVtbl *lpVtbl; |
| const struct IDCInfoVtbl *lpDCInfoVtbl; |
| |
| LONG ref; |
| |
| UINT version; /* Set by IDCInfo_SetInfo */ |
| } convert; |
| |
| static inline convert *impl_from_IDataConvert(IDataConvert *iface) |
| { |
| return (convert *)((char*)iface - FIELD_OFFSET(convert, lpVtbl)); |
| } |
| |
| static inline convert *impl_from_IDCInfo(IDCInfo *iface) |
| { |
| return (convert *)((char*)iface - FIELD_OFFSET(convert, lpDCInfoVtbl)); |
| } |
| |
| static HRESULT WINAPI convert_QueryInterface(IDataConvert* iface, |
| REFIID riid, |
| void **obj) |
| { |
| convert *This = impl_from_IDataConvert(iface); |
| TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), obj); |
| |
| *obj = NULL; |
| |
| if(IsEqualIID(riid, &IID_IUnknown) || |
| IsEqualIID(riid, &IID_IDataConvert)) |
| { |
| *obj = iface; |
| } |
| else if(IsEqualIID(riid, &IID_IDCInfo)) |
| { |
| *obj = &This->lpDCInfoVtbl; |
| } |
| else |
| { |
| FIXME("interface %s not implemented\n", debugstr_guid(riid)); |
| return E_NOINTERFACE; |
| } |
| |
| IDataConvert_AddRef(iface); |
| return S_OK; |
| } |
| |
| |
| static ULONG WINAPI convert_AddRef(IDataConvert* iface) |
| { |
| convert *This = impl_from_IDataConvert(iface); |
| TRACE("(%p)\n", This); |
| |
| return InterlockedIncrement(&This->ref); |
| } |
| |
| |
| static ULONG WINAPI convert_Release(IDataConvert* iface) |
| { |
| convert *This = impl_from_IDataConvert(iface); |
| LONG ref; |
| |
| TRACE("(%p)\n", This); |
| |
| ref = InterlockedDecrement(&This->ref); |
| if(ref == 0) |
| { |
| HeapFree(GetProcessHeap(), 0, This); |
| } |
| |
| return ref; |
| } |
| |
| static int get_length(DBTYPE type) |
| { |
| switch(type) |
| { |
| case DBTYPE_I1: |
| case DBTYPE_UI1: |
| return 1; |
| case DBTYPE_I2: |
| case DBTYPE_UI2: |
| return 2; |
| case DBTYPE_I4: |
| case DBTYPE_UI4: |
| return 4; |
| case DBTYPE_I8: |
| case DBTYPE_UI8: |
| return 8; |
| case DBTYPE_BSTR: |
| return sizeof(BSTR); |
| case DBTYPE_FILETIME: |
| return sizeof(FILETIME); |
| case DBTYPE_GUID: |
| return sizeof(GUID); |
| case DBTYPE_WSTR: |
| case DBTYPE_BYREF | DBTYPE_WSTR: |
| return 0; |
| default: |
| FIXME("Unhandled type %04x\n", type); |
| return 0; |
| } |
| } |
| |
| static HRESULT WINAPI convert_DataConvert(IDataConvert* iface, |
| DBTYPE src_type, DBTYPE dst_type, |
| DBLENGTH src_len, DBLENGTH *dst_len, |
| void *src, void *dst, |
| DBLENGTH dst_max_len, |
| DBSTATUS src_status, DBSTATUS *dst_status, |
| BYTE precision, BYTE scale, |
| DBDATACONVERT flags) |
| { |
| convert *This = impl_from_IDataConvert(iface); |
| HRESULT hr; |
| |
| 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); |
| |
| *dst_len = get_length(dst_type); |
| *dst_status = DBSTATUS_E_BADACCESSOR; |
| |
| if(IDataConvert_CanConvert(iface, src_type, dst_type) != S_OK) |
| { |
| 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_I2: |
| { |
| signed short *d = dst; |
| switch(src_type) |
| { |
| case DBTYPE_EMPTY: *d = 0; hr = S_OK; break; |
| case DBTYPE_I2: *d = *(signed short*)src; hr = S_OK; break; |
| case DBTYPE_I4: hr = VarI2FromI4(*(signed int*)src, d); break; |
| case DBTYPE_R4: hr = VarI2FromR4(*(FLOAT*)src, d); break; |
| case DBTYPE_R8: hr = VarI2FromR8(*(double*)src, d); break; |
| case DBTYPE_CY: hr = VarI2FromCy(*(CY*)src, d); break; |
| case DBTYPE_DATE: hr = VarI2FromDate(*(DATE*)src, d); break; |
| case DBTYPE_BSTR: hr = VarI2FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_BOOL: hr = VarI2FromBool(*(VARIANT_BOOL*)src, d); break; |
| case DBTYPE_DECIMAL: hr = VarI2FromDec((DECIMAL*)src, d); break; |
| case DBTYPE_I1: hr = VarI2FromI1(*(signed char*)src, d); break; |
| case DBTYPE_UI1: hr = VarI2FromUI1(*(BYTE*)src, d); break; |
| case DBTYPE_UI2: hr = VarI2FromUI2(*(WORD*)src, d); break; |
| case DBTYPE_UI4: hr = VarI2FromUI4(*(DWORD*)src, d); break; |
| case DBTYPE_I8: hr = VarI2FromI8(*(LONGLONG*)src, d); break; |
| case DBTYPE_UI8: hr = VarI2FromUI8(*(ULONGLONG*)src, d); break; |
| default: FIXME("Unimplemented conversion %04x -> I2\n", src_type); return E_NOTIMPL; |
| } |
| break; |
| } |
| |
| case DBTYPE_I4: |
| { |
| signed int *d = dst; |
| switch(src_type) |
| { |
| case DBTYPE_EMPTY: *d = 0; hr = S_OK; break; |
| case DBTYPE_I2: hr = VarI4FromI2(*(signed short*)src, d); break; |
| case DBTYPE_I4: *d = *(signed int*)src; hr = S_OK; break; |
| case DBTYPE_R4: hr = VarI4FromR4(*(FLOAT*)src, d); break; |
| case DBTYPE_R8: hr = VarI4FromR8(*(double*)src, d); break; |
| case DBTYPE_CY: hr = VarI4FromCy(*(CY*)src, d); break; |
| case DBTYPE_DATE: hr = VarI4FromDate(*(DATE*)src, d); break; |
| case DBTYPE_BSTR: hr = VarI4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_BOOL: hr = VarI4FromBool(*(VARIANT_BOOL*)src, d); break; |
| case DBTYPE_DECIMAL: hr = VarI4FromDec((DECIMAL*)src, d); break; |
| case DBTYPE_I1: hr = VarI4FromI1(*(signed char*)src, d); break; |
| case DBTYPE_UI1: hr = VarI4FromUI1(*(BYTE*)src, d); break; |
| case DBTYPE_UI2: hr = VarI4FromUI2(*(WORD*)src, d); break; |
| case DBTYPE_UI4: hr = VarI4FromUI4(*(DWORD*)src, d); break; |
| case DBTYPE_I8: hr = VarI4FromI8(*(LONGLONG*)src, d); break; |
| case DBTYPE_UI8: hr = VarI4FromUI8(*(ULONGLONG*)src, d); break; |
| default: FIXME("Unimplemented conversion %04x -> I4\n", src_type); return E_NOTIMPL; |
| } |
| break; |
| } |
| |
| case DBTYPE_BSTR: |
| { |
| BSTR *d = dst; |
| switch(src_type) |
| { |
| case DBTYPE_EMPTY: *d = SysAllocStringLen(NULL, 0); hr = *d ? S_OK : E_OUTOFMEMORY; break; |
| case DBTYPE_I2: hr = VarBstrFromI2(*(signed short*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_I4: hr = VarBstrFromI4(*(signed int*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_R4: hr = VarBstrFromR4(*(FLOAT*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_R8: hr = VarBstrFromR8(*(double*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_CY: hr = VarBstrFromCy(*(CY*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_DATE: hr = VarBstrFromDate(*(DATE*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_BSTR: *d = SysAllocStringLen(*(BSTR*)src, SysStringLen(*(BSTR*)src)); hr = *d ? S_OK : E_OUTOFMEMORY; break; |
| case DBTYPE_BOOL: hr = VarBstrFromBool(*(VARIANT_BOOL*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_DECIMAL: hr = VarBstrFromDec((DECIMAL*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_I1: hr = VarBstrFromI1(*(signed char*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_UI1: hr = VarBstrFromUI1(*(BYTE*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_UI2: hr = VarBstrFromUI2(*(WORD*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_UI4: hr = VarBstrFromUI4(*(DWORD*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_I8: hr = VarBstrFromI8(*(LONGLONG*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_UI8: hr = VarBstrFromUI8(*(ULONGLONG*)src, LOCALE_USER_DEFAULT, 0, d); break; |
| default: FIXME("Unimplemented conversion %04x -> BSTR\n", src_type); return E_NOTIMPL; |
| } |
| break; |
| } |
| |
| case DBTYPE_UI1: |
| { |
| BYTE *d = dst; |
| switch(src_type) |
| { |
| case DBTYPE_EMPTY: *d = 0; hr = S_OK; break; |
| case DBTYPE_I2: hr = VarUI1FromI2(*(signed short*)src, d); break; |
| case DBTYPE_I4: hr = VarUI1FromI4(*(signed int*)src, d); break; |
| case DBTYPE_R4: hr = VarUI1FromR4(*(FLOAT*)src, d); break; |
| case DBTYPE_R8: hr = VarUI1FromR8(*(double*)src, d); break; |
| case DBTYPE_CY: hr = VarUI1FromCy(*(CY*)src, d); break; |
| case DBTYPE_DATE: hr = VarUI1FromDate(*(DATE*)src, d); break; |
| case DBTYPE_BSTR: hr = VarUI1FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_BOOL: hr = VarUI1FromBool(*(VARIANT_BOOL*)src, d); break; |
| case DBTYPE_DECIMAL: hr = VarUI1FromDec((DECIMAL*)src, d); break; |
| case DBTYPE_I1: hr = VarUI1FromI1(*(signed char*)src, d); break; |
| case DBTYPE_UI1: *d = *(BYTE*)src; hr = S_OK; break; |
| case DBTYPE_UI2: hr = VarUI1FromUI2(*(WORD*)src, d); break; |
| case DBTYPE_UI4: hr = VarUI1FromUI4(*(DWORD*)src, d); break; |
| case DBTYPE_I8: hr = VarUI1FromI8(*(LONGLONG*)src, d); break; |
| case DBTYPE_UI8: hr = VarUI1FromUI8(*(ULONGLONG*)src, d); break; |
| default: FIXME("Unimplemented conversion %04x -> UI1\n", src_type); return E_NOTIMPL; |
| } |
| break; |
| } |
| |
| case DBTYPE_UI4: |
| { |
| DWORD *d = dst; |
| switch(src_type) |
| { |
| case DBTYPE_EMPTY: *d = 0; hr = S_OK; break; |
| case DBTYPE_I2: hr = VarUI4FromI2(*(signed short*)src, d); break; |
| case DBTYPE_I4: hr = VarUI4FromI4(*(signed int*)src, d); break; |
| case DBTYPE_R4: hr = VarUI4FromR4(*(FLOAT*)src, d); break; |
| case DBTYPE_R8: hr = VarUI4FromR8(*(double*)src, d); break; |
| case DBTYPE_CY: hr = VarUI4FromCy(*(CY*)src, d); break; |
| case DBTYPE_DATE: hr = VarUI4FromDate(*(DATE*)src, d); break; |
| case DBTYPE_BSTR: hr = VarUI4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break; |
| case DBTYPE_BOOL: hr = VarUI4FromBool(*(VARIANT_BOOL*)src, d); break; |
| case DBTYPE_DECIMAL: hr = VarUI4FromDec((DECIMAL*)src, d); break; |
| case DBTYPE_I1: hr = VarUI4FromI1(*(signed char*)src, d); break; |
| case DBTYPE_UI1: hr = VarUI4FromUI1(*(BYTE*)src, d); break; |
| case DBTYPE_UI2: hr = VarUI4FromUI2(*(WORD*)src, d); break; |
| case DBTYPE_UI4: *d = *(DWORD*)src; hr = S_OK; break; |
| case DBTYPE_I8: hr = VarUI4FromI8(*(LONGLONG*)src, d); break; |
| case DBTYPE_UI8: hr = VarUI4FromUI8(*(ULONGLONG*)src, d); break; |
| default: FIXME("Unimplemented conversion %04x -> UI1\n", src_type); return E_NOTIMPL; |
| } |
| break; |
| } |
| |
| case DBTYPE_FILETIME: |
| { |
| FILETIME *d = dst; |
| switch(src_type) |
| { |
| case DBTYPE_EMPTY: d->dwLowDateTime = d->dwHighDateTime = 0; hr = S_OK; break; |
| case DBTYPE_FILETIME: *d = *(FILETIME*)src; hr = S_OK; break; |
| default: FIXME("Unimplemented conversion %04x -> FILETIME\n", src_type); return E_NOTIMPL; |
| } |
| break; |
| } |
| |
| case DBTYPE_GUID: |
| { |
| GUID *d = dst; |
| switch(src_type) |
| { |
| case DBTYPE_EMPTY: *d = GUID_NULL; hr = S_OK; break; |
| case DBTYPE_GUID: *d = *(GUID*)src; hr = S_OK; break; |
| default: FIXME("Unimplemented conversion %04x -> GUID\n", src_type); return E_NOTIMPL; |
| } |
| 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; |
| } |
| |
| case DBTYPE_BYREF | DBTYPE_WSTR: |
| { |
| BSTR b; |
| WCHAR **d = dst; |
| DBLENGTH bstr_len; |
| 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) * sizeof(WCHAR); |
| *dst_len = bstr_len; /* Doesn't include size for '\0' */ |
| |
| *d = CoTaskMemAlloc(bstr_len + sizeof(WCHAR)); |
| if(*d) memcpy(*d, b, bstr_len + sizeof(WCHAR)); |
| else hr = E_OUTOFMEMORY; |
| SysFreeString(b); |
| return hr; |
| } |
| |
| default: |
| FIXME("Unimplemented conversion %04x -> %04x\n", src_type, dst_type); |
| return E_NOTIMPL; |
| |
| } |
| |
| if(hr == DISP_E_OVERFLOW) |
| { |
| *dst_status = DBSTATUS_E_DATAOVERFLOW; |
| hr = DB_E_ERRORSOCCURRED; |
| } |
| else if(hr == S_OK) |
| *dst_status = DBSTATUS_S_OK; |
| |
| return hr; |
| } |
| |
| static inline WORD get_dbtype_class(DBTYPE type) |
| { |
| switch(type) |
| { |
| case DBTYPE_I2: |
| case DBTYPE_R4: |
| case DBTYPE_R8: |
| case DBTYPE_I1: |
| case DBTYPE_UI1: |
| case DBTYPE_UI2: |
| return DBTYPE_I2; |
| |
| case DBTYPE_I4: |
| case DBTYPE_UI4: |
| return DBTYPE_I4; |
| |
| case DBTYPE_I8: |
| case DBTYPE_UI8: |
| return DBTYPE_I8; |
| |
| case DBTYPE_BSTR: |
| case DBTYPE_STR: |
| case DBTYPE_WSTR: |
| return DBTYPE_BSTR; |
| |
| case DBTYPE_DBDATE: |
| case DBTYPE_DBTIME: |
| case DBTYPE_DBTIMESTAMP: |
| return DBTYPE_DBDATE; |
| } |
| return type; |
| } |
| |
| /* Many src types will convert to this group of dst types */ |
| static inline BOOL common_class(WORD dst_class) |
| { |
| switch(dst_class) |
| { |
| case DBTYPE_EMPTY: |
| case DBTYPE_NULL: |
| case DBTYPE_I2: |
| case DBTYPE_I4: |
| case DBTYPE_BSTR: |
| case DBTYPE_BOOL: |
| case DBTYPE_VARIANT: |
| case DBTYPE_I8: |
| case DBTYPE_CY: |
| case DBTYPE_DECIMAL: |
| case DBTYPE_NUMERIC: |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| static inline BOOL array_type(DBTYPE type) |
| { |
| return (type >= DBTYPE_I2 && type <= DBTYPE_UI4); |
| } |
| |
| static HRESULT WINAPI convert_CanConvert(IDataConvert* iface, |
| DBTYPE src_type, DBTYPE dst_type) |
| { |
| convert *This = impl_from_IDataConvert(iface); |
| DBTYPE src_base_type = src_type & 0x1ff; |
| DBTYPE dst_base_type = dst_type & 0x1ff; |
| WORD dst_class = get_dbtype_class(dst_base_type); |
| |
| TRACE("(%p)->(%d, %d)\n", This, src_type, dst_type); |
| |
| if(src_type & DBTYPE_VECTOR || dst_type & DBTYPE_VECTOR) return S_FALSE; |
| |
| if(src_type & DBTYPE_ARRAY) |
| { |
| if(!array_type(src_base_type)) return S_FALSE; |
| if(dst_type & DBTYPE_ARRAY) |
| { |
| if(src_type == dst_type) return S_OK; |
| return S_FALSE; |
| } |
| if(dst_type == DBTYPE_VARIANT) return S_OK; |
| return S_FALSE; |
| } |
| |
| if(dst_type & DBTYPE_ARRAY) |
| { |
| if(!array_type(dst_base_type)) return S_FALSE; |
| if(src_type == DBTYPE_IDISPATCH || src_type == DBTYPE_VARIANT) return S_OK; |
| return S_FALSE; |
| } |
| |
| if(dst_type & DBTYPE_BYREF) |
| if(dst_base_type != DBTYPE_BYTES && dst_base_type != DBTYPE_STR && dst_base_type != DBTYPE_WSTR) |
| return S_FALSE; |
| |
| switch(get_dbtype_class(src_base_type)) |
| { |
| case DBTYPE_EMPTY: |
| if(common_class(dst_class)) return S_OK; |
| switch(dst_class) |
| { |
| case DBTYPE_DATE: |
| case DBTYPE_GUID: |
| case DBTYPE_FILETIME: |
| return S_OK; |
| default: |
| if(dst_base_type == DBTYPE_DBTIMESTAMP) return S_OK; |
| return S_FALSE; |
| } |
| |
| case DBTYPE_NULL: |
| switch(dst_base_type) |
| { |
| case DBTYPE_NULL: |
| case DBTYPE_VARIANT: |
| case DBTYPE_FILETIME: return S_OK; |
| default: return S_FALSE; |
| } |
| |
| case DBTYPE_I4: |
| if(dst_base_type == DBTYPE_BYTES) return S_OK; |
| /* fall through */ |
| case DBTYPE_I2: |
| if(dst_base_type == DBTYPE_DATE) return S_OK; |
| /* fall through */ |
| case DBTYPE_DECIMAL: |
| if(common_class(dst_class)) return S_OK; |
| if(dst_class == DBTYPE_DBDATE) return S_OK; |
| return S_FALSE; |
| |
| case DBTYPE_BOOL: |
| if(dst_base_type == DBTYPE_DATE) return S_OK; |
| case DBTYPE_NUMERIC: |
| case DBTYPE_CY: |
| if(common_class(dst_class)) return S_OK; |
| return S_FALSE; |
| |
| case DBTYPE_I8: |
| if(common_class(dst_class)) return S_OK; |
| switch(dst_base_type) |
| { |
| case DBTYPE_BYTES: |
| case DBTYPE_FILETIME: return S_OK; |
| default: return S_FALSE; |
| } |
| |
| case DBTYPE_DATE: |
| switch(dst_class) |
| { |
| case DBTYPE_EMPTY: |
| case DBTYPE_NULL: |
| case DBTYPE_I2: |
| case DBTYPE_I4: |
| case DBTYPE_BSTR: |
| case DBTYPE_BOOL: |
| case DBTYPE_VARIANT: |
| case DBTYPE_I8: |
| case DBTYPE_DATE: |
| case DBTYPE_DBDATE: |
| case DBTYPE_FILETIME: |
| return S_OK; |
| default: return S_FALSE; |
| } |
| |
| case DBTYPE_IDISPATCH: |
| case DBTYPE_VARIANT: |
| switch(dst_base_type) |
| { |
| case DBTYPE_IDISPATCH: |
| case DBTYPE_ERROR: |
| case DBTYPE_IUNKNOWN: |
| return S_OK; |
| } |
| /* fall through */ |
| case DBTYPE_BSTR: |
| if(common_class(dst_class)) return S_OK; |
| switch(dst_class) |
| { |
| case DBTYPE_DATE: |
| case DBTYPE_GUID: |
| case DBTYPE_BYTES: |
| case DBTYPE_DBDATE: |
| case DBTYPE_FILETIME: |
| return S_OK; |
| default: return S_FALSE; |
| } |
| |
| case DBTYPE_ERROR: |
| switch(dst_base_type) |
| { |
| case DBTYPE_BSTR: |
| case DBTYPE_ERROR: |
| case DBTYPE_VARIANT: |
| case DBTYPE_WSTR: |
| return S_OK; |
| default: return S_FALSE; |
| } |
| |
| case DBTYPE_IUNKNOWN: |
| switch(dst_base_type) |
| { |
| case DBTYPE_EMPTY: |
| case DBTYPE_NULL: |
| case DBTYPE_IDISPATCH: |
| case DBTYPE_VARIANT: |
| case DBTYPE_IUNKNOWN: |
| return S_OK; |
| default: return S_FALSE; |
| } |
| |
| case DBTYPE_BYTES: |
| if(dst_class == DBTYPE_I4 || dst_class == DBTYPE_I8) return S_OK; |
| /* fall through */ |
| case DBTYPE_GUID: |
| switch(dst_class) |
| { |
| case DBTYPE_EMPTY: |
| case DBTYPE_NULL: |
| case DBTYPE_BSTR: |
| case DBTYPE_VARIANT: |
| case DBTYPE_GUID: |
| case DBTYPE_BYTES: |
| return S_OK; |
| default: return S_FALSE; |
| } |
| |
| case DBTYPE_FILETIME: |
| if(dst_class == DBTYPE_I8) return S_OK; |
| /* fall through */ |
| case DBTYPE_DBDATE: |
| switch(dst_class) |
| { |
| case DBTYPE_EMPTY: |
| case DBTYPE_NULL: |
| case DBTYPE_DATE: |
| case DBTYPE_BSTR: |
| case DBTYPE_VARIANT: |
| case DBTYPE_DBDATE: |
| case DBTYPE_FILETIME: |
| return S_OK; |
| default: return S_FALSE; |
| } |
| |
| } |
| return S_FALSE; |
| } |
| |
| static HRESULT WINAPI convert_GetConversionSize(IDataConvert* iface, |
| DBTYPE wSrcType, DBTYPE wDstType, |
| DBLENGTH *pcbSrcLength, DBLENGTH *pcbDstLength, |
| void *pSrc) |
| { |
| convert *This = impl_from_IDataConvert(iface); |
| FIXME("(%p)->(%d, %d, %p, %p, %p): stub\n", This, wSrcType, wDstType, pcbSrcLength, pcbDstLength, pSrc); |
| |
| return E_NOTIMPL; |
| } |
| |
| static const struct IDataConvertVtbl convert_vtbl = |
| { |
| convert_QueryInterface, |
| convert_AddRef, |
| convert_Release, |
| convert_DataConvert, |
| convert_CanConvert, |
| convert_GetConversionSize |
| }; |
| |
| static HRESULT WINAPI dcinfo_QueryInterface(IDCInfo* iface, REFIID riid, void **obj) |
| { |
| convert *This = impl_from_IDCInfo(iface); |
| |
| return IDataConvert_QueryInterface((IDataConvert *)This, riid, obj); |
| } |
| |
| static ULONG WINAPI dcinfo_AddRef(IDCInfo* iface) |
| { |
| convert *This = impl_from_IDCInfo(iface); |
| |
| return IDataConvert_AddRef((IDataConvert *)This); |
| } |
| |
| static ULONG WINAPI dcinfo_Release(IDCInfo* iface) |
| { |
| convert *This = impl_from_IDCInfo(iface); |
| |
| return IDataConvert_Release((IDataConvert *)This); |
| } |
| |
| static HRESULT WINAPI dcinfo_GetInfo(IDCInfo *iface, ULONG num, DCINFOTYPE types[], DCINFO **info_ptr) |
| { |
| convert *This = impl_from_IDCInfo(iface); |
| ULONG i; |
| DCINFO *infos; |
| |
| TRACE("(%p)->(%d, %p, %p)\n", This, num, types, info_ptr); |
| |
| *info_ptr = infos = CoTaskMemAlloc(num * sizeof(*infos)); |
| if(!infos) return E_OUTOFMEMORY; |
| |
| for(i = 0; i < num; i++) |
| { |
| infos[i].eInfoType = types[i]; |
| VariantInit(&infos[i].vData); |
| |
| switch(types[i]) |
| { |
| case DCINFOTYPE_VERSION: |
| V_VT(&infos[i].vData) = VT_UI4; |
| V_UI4(&infos[i].vData) = This->version; |
| break; |
| } |
| } |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI dcinfo_SetInfo(IDCInfo* iface, ULONG num, DCINFO info[]) |
| { |
| convert *This = impl_from_IDCInfo(iface); |
| ULONG i; |
| HRESULT hr = S_OK; |
| |
| TRACE("(%p)->(%d, %p)\n", This, num, info); |
| |
| for(i = 0; i < num; i++) |
| { |
| switch(info[i].eInfoType) |
| { |
| case DCINFOTYPE_VERSION: |
| if(V_VT(&info[i].vData) != VT_UI4) |
| { |
| FIXME("VERSION with vt %x\n", V_VT(&info[i].vData)); |
| hr = DB_S_ERRORSOCCURRED; |
| break; |
| } |
| This->version = V_UI4(&info[i].vData); |
| break; |
| |
| default: |
| FIXME("Unhandled info type %d (vt %x)\n", info[i].eInfoType, V_VT(&info[i].vData)); |
| } |
| } |
| return hr; |
| } |
| |
| static const struct IDCInfoVtbl dcinfo_vtbl = |
| { |
| dcinfo_QueryInterface, |
| dcinfo_AddRef, |
| dcinfo_Release, |
| dcinfo_GetInfo, |
| dcinfo_SetInfo |
| }; |
| |
| HRESULT create_oledb_convert(IUnknown *outer, void **obj) |
| { |
| convert *This; |
| |
| TRACE("(%p, %p)\n", outer, obj); |
| |
| *obj = NULL; |
| |
| if(outer) return CLASS_E_NOAGGREGATION; |
| |
| This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This)); |
| if(!This) return E_OUTOFMEMORY; |
| |
| This->lpVtbl = &convert_vtbl; |
| This->lpDCInfoVtbl = &dcinfo_vtbl; |
| This->ref = 1; |
| This->version = 0x110; |
| |
| *obj = &This->lpVtbl; |
| |
| return S_OK; |
| } |
