1256 lines
45 KiB
C
1256 lines
45 KiB
C
/* OLE DB Conversion library
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*
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* Copyright 2009 Huw Davies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#define COBJMACROS
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include "windef.h"
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#include "winbase.h"
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#include "winnls.h"
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#include "ole2.h"
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#include "msdadc.h"
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#include "oledberr.h"
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#include "oledb_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(oledb);
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typedef struct
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{
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IDataConvert IDataConvert_iface;
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IDCInfo IDCInfo_iface;
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LONG ref;
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UINT version; /* Set by IDCInfo_SetInfo */
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} convert;
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static inline convert *impl_from_IDataConvert(IDataConvert *iface)
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{
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return CONTAINING_RECORD(iface, convert, IDataConvert_iface);
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}
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static inline convert *impl_from_IDCInfo(IDCInfo *iface)
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{
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return CONTAINING_RECORD(iface, convert, IDCInfo_iface);
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}
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static HRESULT WINAPI convert_QueryInterface(IDataConvert* iface,
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REFIID riid,
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void **obj)
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{
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convert *This = impl_from_IDataConvert(iface);
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TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), obj);
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*obj = NULL;
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if(IsEqualIID(riid, &IID_IUnknown) ||
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IsEqualIID(riid, &IID_IDataConvert))
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{
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*obj = iface;
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}
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else if(IsEqualIID(riid, &IID_IDCInfo))
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{
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*obj = &This->IDCInfo_iface;
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}
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else
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{
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FIXME("interface %s not implemented\n", debugstr_guid(riid));
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return E_NOINTERFACE;
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}
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IDataConvert_AddRef(iface);
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return S_OK;
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}
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static ULONG WINAPI convert_AddRef(IDataConvert* iface)
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{
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convert *This = impl_from_IDataConvert(iface);
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TRACE("(%p)\n", This);
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return InterlockedIncrement(&This->ref);
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}
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static ULONG WINAPI convert_Release(IDataConvert* iface)
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{
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convert *This = impl_from_IDataConvert(iface);
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LONG ref;
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TRACE("(%p)\n", This);
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ref = InterlockedDecrement(&This->ref);
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if(ref == 0)
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{
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static int get_length(DBTYPE type)
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{
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switch(type)
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{
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case DBTYPE_I1:
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case DBTYPE_UI1:
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return 1;
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case DBTYPE_I2:
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case DBTYPE_UI2:
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return 2;
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case DBTYPE_BOOL:
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return sizeof(VARIANT_BOOL);
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case DBTYPE_I4:
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case DBTYPE_UI4:
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case DBTYPE_R4:
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return 4;
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case DBTYPE_I8:
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case DBTYPE_UI8:
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case DBTYPE_R8:
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case DBTYPE_DATE:
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return 8;
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case DBTYPE_DBTIMESTAMP:
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return sizeof(DBTIMESTAMP);
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case DBTYPE_CY:
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return sizeof(CY);
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case DBTYPE_BSTR:
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return sizeof(BSTR);
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case DBTYPE_FILETIME:
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return sizeof(FILETIME);
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case DBTYPE_GUID:
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return sizeof(GUID);
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case DBTYPE_WSTR:
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case DBTYPE_STR:
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case DBTYPE_BYREF | DBTYPE_WSTR:
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return 0;
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case DBTYPE_VARIANT:
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return sizeof(VARIANT);
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default:
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FIXME("Unhandled type %04x\n", type);
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return 0;
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}
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}
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static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
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DBTYPE src_type, DBTYPE dst_type,
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DBLENGTH src_len, DBLENGTH *dst_len,
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void *src, void *dst,
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DBLENGTH dst_max_len,
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DBSTATUS src_status, DBSTATUS *dst_status,
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BYTE precision, BYTE scale,
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DBDATACONVERT flags)
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{
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convert *This = impl_from_IDataConvert(iface);
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DBLENGTH dst_len_loc;
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DBSTATUS dst_status_loc;
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HRESULT hr;
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TRACE("(%p)->(%d, %d, %ld, %p, %p, %p, %ld, %d, %p, %d, %d, %x)\n", This,
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src_type, dst_type, src_len, dst_len, src, dst, dst_max_len,
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src_status, dst_status, precision, scale, flags);
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if (!dst_len) dst_len = &dst_len_loc;
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if (!dst_status) dst_status = &dst_status_loc;
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*dst_status = DBSTATUS_E_BADACCESSOR;
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if(IDataConvert_CanConvert(iface, src_type, dst_type) != S_OK)
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{
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return DB_E_UNSUPPORTEDCONVERSION;
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}
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if(src_type == DBTYPE_STR)
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{
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BSTR b;
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DWORD len;
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if(flags & DBDATACONVERT_LENGTHFROMNTS)
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len = MultiByteToWideChar(CP_ACP, 0, src, -1, NULL, 0) - 1;
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else
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len = MultiByteToWideChar(CP_ACP, 0, src, src_len, NULL, 0);
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b = SysAllocStringLen(NULL, len);
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if(!b) return E_OUTOFMEMORY;
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if(flags & DBDATACONVERT_LENGTHFROMNTS)
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MultiByteToWideChar(CP_ACP, 0, src, -1, b, len + 1);
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else
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MultiByteToWideChar(CP_ACP, 0, src, src_len, b, len);
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hr = IDataConvert_DataConvert(iface, DBTYPE_BSTR, dst_type, 0, dst_len,
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&b, dst, dst_max_len, src_status, dst_status,
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precision, scale, flags);
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SysFreeString(b);
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return hr;
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}
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if(src_type == DBTYPE_WSTR)
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{
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BSTR b;
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if(flags & DBDATACONVERT_LENGTHFROMNTS)
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b = SysAllocString(src);
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else
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b = SysAllocStringLen(src, src_len / 2);
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if(!b) return E_OUTOFMEMORY;
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hr = IDataConvert_DataConvert(iface, DBTYPE_BSTR, dst_type, 0, dst_len,
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&b, dst, dst_max_len, src_status, dst_status,
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precision, scale, flags);
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SysFreeString(b);
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return hr;
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}
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switch(dst_type)
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{
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case DBTYPE_I2:
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{
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signed short *d = dst;
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VARIANT tmp;
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switch(src_type)
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{
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case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
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case DBTYPE_I2: *d = *(signed short*)src; hr = S_OK; break;
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case DBTYPE_I4: hr = VarI2FromI4(*(signed int*)src, d); break;
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case DBTYPE_R4: hr = VarI2FromR4(*(FLOAT*)src, d); break;
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case DBTYPE_R8: hr = VarI2FromR8(*(double*)src, d); break;
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case DBTYPE_CY: hr = VarI2FromCy(*(CY*)src, d); break;
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case DBTYPE_DATE: hr = VarI2FromDate(*(DATE*)src, d); break;
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case DBTYPE_BSTR: hr = VarI2FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
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case DBTYPE_BOOL: hr = VarI2FromBool(*(VARIANT_BOOL*)src, d); break;
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case DBTYPE_DECIMAL: hr = VarI2FromDec((DECIMAL*)src, d); break;
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case DBTYPE_I1: hr = VarI2FromI1(*(signed char*)src, d); break;
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case DBTYPE_UI1: hr = VarI2FromUI1(*(BYTE*)src, d); break;
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case DBTYPE_UI2: hr = VarI2FromUI2(*(WORD*)src, d); break;
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case DBTYPE_UI4: hr = VarI2FromUI4(*(DWORD*)src, d); break;
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case DBTYPE_I8: hr = VarI2FromI8(*(LONGLONG*)src, d); break;
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case DBTYPE_UI8: hr = VarI2FromUI8(*(ULONGLONG*)src, d); break;
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case DBTYPE_VARIANT:
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VariantInit(&tmp);
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if ((hr = VariantChangeType(&tmp, (VARIANT*)src, 0, VT_I2)) == S_OK)
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*d = V_I2(&tmp);
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break;
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default: FIXME("Unimplemented conversion %04x -> I2\n", src_type); return E_NOTIMPL;
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}
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break;
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}
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case DBTYPE_I4:
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{
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signed int *d = dst;
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VARIANT tmp;
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switch(src_type)
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{
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case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
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case DBTYPE_I2: hr = VarI4FromI2(*(signed short*)src, d); break;
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case DBTYPE_I4: *d = *(signed int*)src; hr = S_OK; break;
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case DBTYPE_R4: hr = VarI4FromR4(*(FLOAT*)src, d); break;
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case DBTYPE_R8: hr = VarI4FromR8(*(double*)src, d); break;
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case DBTYPE_CY: hr = VarI4FromCy(*(CY*)src, d); break;
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case DBTYPE_DATE: hr = VarI4FromDate(*(DATE*)src, d); break;
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case DBTYPE_BSTR: hr = VarI4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
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case DBTYPE_BOOL: hr = VarI4FromBool(*(VARIANT_BOOL*)src, d); break;
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case DBTYPE_DECIMAL: hr = VarI4FromDec((DECIMAL*)src, d); break;
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case DBTYPE_I1: hr = VarI4FromI1(*(signed char*)src, d); break;
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case DBTYPE_UI1: hr = VarI4FromUI1(*(BYTE*)src, d); break;
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case DBTYPE_UI2: hr = VarI4FromUI2(*(WORD*)src, d); break;
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case DBTYPE_UI4: hr = VarI4FromUI4(*(DWORD*)src, d); break;
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case DBTYPE_I8: hr = VarI4FromI8(*(LONGLONG*)src, d); break;
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case DBTYPE_UI8: hr = VarI4FromUI8(*(ULONGLONG*)src, d); break;
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case DBTYPE_VARIANT:
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VariantInit(&tmp);
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if ((hr = VariantChangeType(&tmp, (VARIANT*)src, 0, VT_I4)) == S_OK)
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*d = V_I4(&tmp);
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break;
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default: FIXME("Unimplemented conversion %04x -> I4\n", src_type); return E_NOTIMPL;
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}
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break;
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}
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case DBTYPE_I8:
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{
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LONGLONG *d = dst;
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switch(src_type)
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{
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case DBTYPE_BSTR: hr = VarI8FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
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case DBTYPE_I8: *d = *(LONGLONG*)src; hr = S_OK; break;
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default: FIXME("Unimplemented conversion %04x -> I8\n", src_type); return E_NOTIMPL;
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}
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break;
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}
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case DBTYPE_R4:
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{
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FLOAT *d = dst;
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switch(src_type)
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{
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case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
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case DBTYPE_I2: hr = VarR4FromI2(*(signed short*)src, d); break;
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case DBTYPE_I4: hr = VarR4FromI4(*(signed int*)src, d); break;
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case DBTYPE_R4: *d = *(FLOAT*)src; hr = S_OK; break;
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case DBTYPE_R8: hr = VarR4FromR8(*(double*)src, d); break;
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case DBTYPE_CY: hr = VarR4FromCy(*(CY*)src, d); break;
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case DBTYPE_DATE: hr = VarR4FromDate(*(DATE*)src, d); break;
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case DBTYPE_BSTR: hr = VarR4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
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case DBTYPE_BOOL: hr = VarR4FromBool(*(VARIANT_BOOL*)src, d); break;
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case DBTYPE_DECIMAL: hr = VarR4FromDec((DECIMAL*)src, d); break;
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case DBTYPE_I1: hr = VarR4FromI1(*(signed char*)src, d); break;
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case DBTYPE_UI1: hr = VarR4FromUI1(*(BYTE*)src, d); break;
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case DBTYPE_UI2: hr = VarR4FromUI2(*(WORD*)src, d); break;
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case DBTYPE_UI4: hr = VarR4FromUI4(*(DWORD*)src, d); break;
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case DBTYPE_I8: hr = VarR4FromI8(*(LONGLONG*)src, d); break;
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case DBTYPE_UI8: hr = VarR4FromUI8(*(ULONGLONG*)src, d); break;
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default: FIXME("Unimplemented conversion %04x -> R4\n", src_type); return E_NOTIMPL;
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}
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break;
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}
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case DBTYPE_R8:
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{
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DOUBLE *d=dst;
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switch (src_type)
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{
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case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
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case DBTYPE_I1: hr = VarR8FromI1(*(signed char*)src, d); break;
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case DBTYPE_I2: hr = VarR8FromI2(*(signed short*)src, d); break;
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case DBTYPE_I4: hr = VarR8FromI4(*(signed int*)src, d); break;
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case DBTYPE_I8: hr = VarR8FromI8(*(LONGLONG*)src, d); break;
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case DBTYPE_UI1: hr = VarR8FromUI1(*(BYTE*)src, d); break;
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case DBTYPE_UI2: hr = VarR8FromUI2(*(WORD*)src, d); break;
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case DBTYPE_UI4: hr = VarR8FromUI4(*(DWORD*)src, d); break;
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case DBTYPE_UI8: hr = VarR8FromUI8(*(ULONGLONG*)src, d); break;
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case DBTYPE_R4: hr = VarR8FromR4(*(FLOAT*)src, d); break;
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case DBTYPE_R8: *d = *(DOUBLE*)src; hr = S_OK; break;
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case DBTYPE_CY: hr = VarR8FromCy(*(CY*)src, d); break;
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case DBTYPE_DATE: hr = VarR8FromDate(*(DATE*)src, d); break;
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case DBTYPE_BSTR: hr = VarR8FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
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case DBTYPE_BOOL: hr = VarR8FromBool(*(VARIANT_BOOL*)src, d); break;
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case DBTYPE_DECIMAL: hr = VarR8FromDec((DECIMAL*)src, d); break;
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default: FIXME("Unimplemented conversion %04x -> R8\n", src_type); return E_NOTIMPL;
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}
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break;
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}
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case DBTYPE_BOOL:
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{
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VARIANT_BOOL *d=dst;
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switch (src_type)
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{
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case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
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case DBTYPE_I1: hr = VarBoolFromI1(*(signed char*)src, d); break;
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case DBTYPE_I2: hr = VarBoolFromI2(*(signed short*)src, d); break;
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case DBTYPE_I4: hr = VarBoolFromI4(*(signed int*)src, d); break;
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case DBTYPE_I8: hr = VarBoolFromI8(*(LONGLONG*)src, d); break;
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case DBTYPE_UI1: hr = VarBoolFromUI1(*(BYTE*)src, d); break;
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case DBTYPE_UI2: hr = VarBoolFromUI2(*(WORD*)src, d); break;
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case DBTYPE_UI4: hr = VarBoolFromUI4(*(DWORD*)src, d); break;
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case DBTYPE_UI8: hr = VarBoolFromUI8(*(ULONGLONG*)src, d); break;
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case DBTYPE_R4: hr = VarBoolFromR4(*(FLOAT*)src, d); break;
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case DBTYPE_R8: hr = VarBoolFromR8(*(DOUBLE*)src, d); break;
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case DBTYPE_CY: hr = VarBoolFromCy(*(CY*)src, d); break;
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case DBTYPE_DATE: hr = VarBoolFromDate(*(DATE*)src, d); break;
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case DBTYPE_BSTR: hr = VarBoolFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
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case DBTYPE_BOOL: *d = *(VARIANT_BOOL*)src; hr = S_OK; break;
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case DBTYPE_DECIMAL: hr = VarBoolFromDec((DECIMAL*)src, d); break;
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default: FIXME("Unimplemented conversion %04x -> BOOL\n", src_type); return E_NOTIMPL;
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}
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break;
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}
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case DBTYPE_DATE:
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{
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DATE *d=dst;
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switch (src_type)
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{
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case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
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case DBTYPE_I1: hr = VarDateFromI1(*(signed char*)src, d); break;
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case DBTYPE_I2: hr = VarDateFromI2(*(signed short*)src, d); break;
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case DBTYPE_I4: hr = VarDateFromI4(*(signed int*)src, d); break;
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case DBTYPE_I8: hr = VarDateFromI8(*(LONGLONG*)src, d); break;
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case DBTYPE_UI1: hr = VarDateFromUI1(*(BYTE*)src, d); break;
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case DBTYPE_UI2: hr = VarDateFromUI2(*(WORD*)src, d); break;
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case DBTYPE_UI4: hr = VarDateFromUI4(*(DWORD*)src, d); break;
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case DBTYPE_UI8: hr = VarDateFromUI8(*(ULONGLONG*)src, d); break;
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case DBTYPE_R4: hr = VarDateFromR4(*(FLOAT*)src, d); break;
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case DBTYPE_R8: hr = VarDateFromR8(*(DOUBLE*)src, d); break;
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case DBTYPE_CY: hr = VarDateFromCy(*(CY*)src, d); break;
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case DBTYPE_DATE: *d = *(DATE*)src; hr = S_OK; break;
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case DBTYPE_BSTR: hr = VarDateFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
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case DBTYPE_BOOL: hr = VarDateFromBool(*(VARIANT_BOOL*)src, d); break;
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case DBTYPE_DECIMAL: hr = VarDateFromDec((DECIMAL*)src, d); break;
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case DBTYPE_DBTIMESTAMP:
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{
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SYSTEMTIME st;
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DBTIMESTAMP *ts=(DBTIMESTAMP*)src;
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st.wYear = ts->year;
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st.wMonth = ts->month;
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st.wDay = ts->day;
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st.wHour = ts->hour;
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st.wMinute = ts->minute;
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st.wSecond = ts->second;
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st.wMilliseconds = ts->fraction/1000000;
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hr = (SystemTimeToVariantTime(&st, d) ? S_OK : E_FAIL);
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break;
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}
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default: FIXME("Unimplemented conversion %04x -> DATE\n", src_type); return E_NOTIMPL;
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}
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break;
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}
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case DBTYPE_DBTIMESTAMP:
|
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{
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DBTIMESTAMP *d=dst;
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switch (src_type)
|
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{
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case DBTYPE_EMPTY: memset(d, 0, sizeof(DBTIMESTAMP)); hr = S_OK; break;
|
|
case DBTYPE_DBTIMESTAMP: memcpy(d, src, sizeof(DBTIMESTAMP)); hr = S_OK; break;
|
|
case DBTYPE_DATE:
|
|
{
|
|
SYSTEMTIME st;
|
|
hr = (VariantTimeToSystemTime(*(double*)src, &st) ? S_OK : E_FAIL);
|
|
d->year = st.wYear;
|
|
d->month = st.wMonth;
|
|
d->day = st.wDay;
|
|
d->hour = st.wHour;
|
|
d->minute = st.wMinute;
|
|
d->second = st.wSecond;
|
|
d->fraction = st.wMilliseconds * 1000000;
|
|
break;
|
|
}
|
|
default: FIXME("Unimplemented conversion %04x -> DBTIMESTAMP\n", src_type); return E_NOTIMPL;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case DBTYPE_CY:
|
|
{
|
|
CY *d = dst;
|
|
switch(src_type)
|
|
{
|
|
case DBTYPE_EMPTY: d->int64 = 0; hr = S_OK; break;
|
|
case DBTYPE_I2: hr = VarCyFromI2(*(signed short*)src, d); break;
|
|
case DBTYPE_I4: hr = VarCyFromI4(*(signed int*)src, d); break;
|
|
case DBTYPE_R4: hr = VarCyFromR4(*(FLOAT*)src, d); break;
|
|
case DBTYPE_R8: hr = VarCyFromR8(*(double*)src, d); break;
|
|
case DBTYPE_CY: *d = *(CY*)src; hr = S_OK; break;
|
|
case DBTYPE_DATE: hr = VarCyFromDate(*(DATE*)src, d); break;
|
|
case DBTYPE_BSTR: hr = VarCyFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
|
|
case DBTYPE_BOOL: hr = VarCyFromBool(*(VARIANT_BOOL*)src, d); break;
|
|
case DBTYPE_DECIMAL: hr = VarCyFromDec((DECIMAL*)src, d); break;
|
|
case DBTYPE_I1: hr = VarCyFromI1(*(signed char*)src, d); break;
|
|
case DBTYPE_UI1: hr = VarCyFromUI1(*(BYTE*)src, d); break;
|
|
case DBTYPE_UI2: hr = VarCyFromUI2(*(WORD*)src, d); break;
|
|
case DBTYPE_UI4: hr = VarCyFromUI4(*(DWORD*)src, d); break;
|
|
case DBTYPE_I8: hr = VarCyFromI8(*(LONGLONG*)src, d); break;
|
|
case DBTYPE_UI8: hr = VarCyFromUI8(*(ULONGLONG*)src, d); break;
|
|
default: FIXME("Unimplemented conversion %04x -> CY\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;
|
|
case DBTYPE_GUID:
|
|
{
|
|
WCHAR szBuff[39];
|
|
const GUID *id = (const GUID *)src;
|
|
WCHAR format[] = {
|
|
'{','%','0','8','X','-','%','0','4','X','-','%','0','4','X','-',
|
|
'%','0','2','X','%','0','2','X','-',
|
|
'%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','}',0};
|
|
wsprintfW(szBuff, format,
|
|
id->Data1, id->Data2, id->Data3,
|
|
id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
|
|
id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
|
|
*d = SysAllocString(szBuff);
|
|
hr = *d ? S_OK : E_OUTOFMEMORY;
|
|
}
|
|
break;
|
|
case DBTYPE_BYTES:
|
|
{
|
|
*d = SysAllocStringLen(NULL, 2 * src_len);
|
|
if (*d == NULL)
|
|
hr = E_OUTOFMEMORY;
|
|
else
|
|
{
|
|
const char hexchars[] = "0123456789ABCDEF";
|
|
WCHAR *s = *d;
|
|
unsigned char *p = src;
|
|
while (src_len > 0)
|
|
{
|
|
*s++ = hexchars[(*p >> 4) & 0x0F];
|
|
*s++ = hexchars[(*p) & 0x0F];
|
|
src_len--; p++;
|
|
}
|
|
hr = S_OK;
|
|
}
|
|
}
|
|
break;
|
|
case DBTYPE_VARIANT:
|
|
{
|
|
VARIANT tmp;
|
|
|
|
VariantInit(&tmp);
|
|
if ((hr = VariantChangeType(&tmp, (VARIANT*)src, 0, VT_BSTR)) == S_OK)
|
|
*d = V_BSTR(&tmp);
|
|
}
|
|
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_UI2:
|
|
{
|
|
WORD *d = dst;
|
|
switch(src_type)
|
|
{
|
|
case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
|
|
case DBTYPE_I2: hr = VarUI2FromI2(*(signed short*)src, d); break;
|
|
case DBTYPE_I4: hr = VarUI2FromI4(*(signed int*)src, d); break;
|
|
case DBTYPE_R4: hr = VarUI2FromR4(*(FLOAT*)src, d); break;
|
|
case DBTYPE_R8: hr = VarUI2FromR8(*(double*)src, d); break;
|
|
case DBTYPE_CY: hr = VarUI2FromCy(*(CY*)src, d); break;
|
|
case DBTYPE_DATE: hr = VarUI2FromDate(*(DATE*)src, d); break;
|
|
case DBTYPE_BSTR: hr = VarUI2FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
|
|
case DBTYPE_BOOL: hr = VarUI2FromBool(*(VARIANT_BOOL*)src, d); break;
|
|
case DBTYPE_DECIMAL: hr = VarUI2FromDec((DECIMAL*)src, d); break;
|
|
case DBTYPE_I1: hr = VarUI2FromI1(*(signed char*)src, d); break;
|
|
case DBTYPE_UI1: hr = VarUI2FromUI1(*(BYTE*)src, d); break;
|
|
case DBTYPE_UI2: *d = *(WORD*)src; hr = S_OK; break;
|
|
case DBTYPE_UI4: hr = VarUI2FromUI4(*(DWORD*)src, d); break;
|
|
case DBTYPE_I8: hr = VarUI2FromI8(*(LONGLONG*)src, d); break;
|
|
case DBTYPE_UI8: hr = VarUI2FromUI8(*(ULONGLONG*)src, d); break;
|
|
default: FIXME("Unimplemented conversion %04x -> UI2\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 -> UI4\n", src_type); return E_NOTIMPL;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case DBTYPE_UI8:
|
|
{
|
|
ULONGLONG *d = dst;
|
|
switch(src_type)
|
|
{
|
|
case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
|
|
case DBTYPE_I2: hr = VarUI8FromI2(*(signed short*)src, d); break;
|
|
case DBTYPE_I4: {LONGLONG s = *(signed int*)src; hr = VarUI8FromI8(s, d); break;}
|
|
case DBTYPE_R4: hr = VarUI8FromR4(*(FLOAT*)src, d); break;
|
|
case DBTYPE_R8: hr = VarUI8FromR8(*(double*)src, d); break;
|
|
case DBTYPE_CY: hr = VarUI8FromCy(*(CY*)src, d); break;
|
|
case DBTYPE_DATE: hr = VarUI8FromDate(*(DATE*)src, d); break;
|
|
case DBTYPE_BSTR: hr = VarUI8FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
|
|
case DBTYPE_BOOL: hr = VarUI8FromBool(*(VARIANT_BOOL*)src, d); break;
|
|
case DBTYPE_DECIMAL: hr = VarUI8FromDec((DECIMAL*)src, d); break;
|
|
case DBTYPE_I1: hr = VarUI8FromI1(*(signed char*)src, d); break;
|
|
case DBTYPE_UI1: hr = VarUI8FromUI1(*(BYTE*)src, d); break;
|
|
case DBTYPE_UI2: hr = VarUI8FromUI2(*(WORD*)src, d); break;
|
|
case DBTYPE_UI4: hr = VarUI8FromUI4(*(DWORD*)src, d); break;
|
|
case DBTYPE_I8: hr = VarUI8FromI8(*(LONGLONG*)src, d); break;
|
|
case DBTYPE_UI8: *d = *(ULONGLONG*)src; hr = S_OK; break;
|
|
default: FIXME("Unimplemented conversion %04x -> UI8\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_STR:
|
|
{
|
|
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(char); /* Doesn't include size for '\0' */
|
|
*dst_status = DBSTATUS_S_OK;
|
|
bytes_to_copy = min(*dst_len + sizeof(char), dst_max_len);
|
|
if(dst)
|
|
{
|
|
if(bytes_to_copy >= sizeof(char))
|
|
{
|
|
WideCharToMultiByte(CP_ACP, 0, b, bytes_to_copy - sizeof(char), dst, dst_max_len, NULL, NULL);
|
|
*((char *)dst + bytes_to_copy / sizeof(char) - 1) = 0;
|
|
if(bytes_to_copy < *dst_len + sizeof(char))
|
|
*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;
|
|
}
|
|
|
|
case DBTYPE_VARIANT:
|
|
{
|
|
VARIANT *v = dst;
|
|
|
|
switch(src_type)
|
|
{
|
|
case DBTYPE_I4:
|
|
V_VT(v) = VT_I4;
|
|
V_I4(v) = *(signed int*)src;
|
|
hr = S_OK;
|
|
break;
|
|
case DBTYPE_I8:
|
|
V_VT(v) = VT_DECIMAL;
|
|
hr = VarDecFromI8( *(LONGLONG*)src, &V_DECIMAL(v));
|
|
break;
|
|
case DBTYPE_R8:
|
|
V_VT(v) = VT_R8;
|
|
V_R8(v) = *(double*)src;
|
|
hr = S_OK;
|
|
break;
|
|
case DBTYPE_BSTR:
|
|
{
|
|
BSTR s = *(WCHAR**)src;
|
|
TRACE("%s\n", debugstr_w(s));
|
|
V_VT(v) = VT_BSTR;
|
|
V_BSTR(v) = SysAllocString(s);
|
|
hr = V_BSTR(v) ? S_OK : E_OUTOFMEMORY;
|
|
break;
|
|
}
|
|
case DBTYPE_DATE:
|
|
V_VT(v) = VT_DATE;
|
|
V_DATE(v) = *(DATE*)src;
|
|
hr = S_OK;
|
|
break;
|
|
case DBTYPE_CY:
|
|
V_VT(v) = VT_CY;
|
|
V_CY(v) = *(CY*)src;
|
|
hr = S_OK;
|
|
break;
|
|
default: FIXME("Unimplemented conversion %04x -> VARIANT\n", src_type); return E_NOTIMPL;
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
FIXME("Unimplemented conversion %04x -> %04x\n", src_type, dst_type);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
if(hr == DISP_E_OVERFLOW)
|
|
{
|
|
*dst_status = DBSTATUS_E_DATAOVERFLOW;
|
|
*dst_len = get_length(dst_type);
|
|
hr = DB_E_ERRORSOCCURRED;
|
|
}
|
|
else if(hr == S_OK)
|
|
{
|
|
*dst_status = DBSTATUS_S_OK;
|
|
*dst_len = get_length(dst_type);
|
|
}
|
|
|
|
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;
|
|
/* fall through */
|
|
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 src_type, DBTYPE dst_type,
|
|
DBLENGTH *src_len, DBLENGTH *dst_len,
|
|
void *src)
|
|
{
|
|
convert *This = impl_from_IDataConvert(iface);
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p)->(%d, %d, %p, %p, %p)\n", This, src_type, dst_type, src_len, dst_len, src);
|
|
|
|
hr = IDataConvert_CanConvert(iface, src_type, dst_type);
|
|
if (hr != S_OK)
|
|
return DB_E_UNSUPPORTEDCONVERSION;
|
|
|
|
if (!dst_len)
|
|
return E_INVALIDARG;
|
|
|
|
/* for some types we don't need to look into source data */
|
|
if ((*dst_len = get_length(dst_type)))
|
|
return S_OK;
|
|
|
|
switch (dst_type)
|
|
{
|
|
case DBTYPE_STR:
|
|
{
|
|
switch (src_type)
|
|
{
|
|
case DBTYPE_VARIANT:
|
|
{
|
|
VARIANT v;
|
|
|
|
VariantInit(&v);
|
|
if ((hr = VariantChangeType(&v, (VARIANT*)src, 0, VT_BSTR)) == S_OK)
|
|
{
|
|
*dst_len = WideCharToMultiByte(CP_ACP, 0, V_BSTR(&v), -1, NULL, 0, NULL, NULL);
|
|
VariantClear(&v);
|
|
}
|
|
else
|
|
return hr;
|
|
}
|
|
break;
|
|
default:
|
|
FIXME("unimplemented for %04x -> DBTYPE_STR\n", src_type);
|
|
return E_NOTIMPL;
|
|
}
|
|
}
|
|
break;
|
|
case DBTYPE_WSTR:
|
|
{
|
|
switch (src_type)
|
|
{
|
|
case DBTYPE_STR:
|
|
if(src_len)
|
|
*dst_len = (*src_len + 1) * sizeof(WCHAR);
|
|
else
|
|
*dst_len = (strlen(src) + 1) * sizeof(WCHAR);
|
|
break;
|
|
case DBTYPE_WSTR:
|
|
if(src_len)
|
|
*dst_len = (*src_len) + sizeof(WCHAR);
|
|
else
|
|
*dst_len = (lstrlenW(src) + 1) * sizeof(WCHAR);
|
|
break;
|
|
default:
|
|
FIXME("unimplemented for %04x -> DBTYPE_WSTR\n", src_type);
|
|
return E_NOTIMPL;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
FIXME("unimplemented for conversion %d->%d\n", src_type, dst_type);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
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(&This->IDataConvert_iface, riid, obj);
|
|
}
|
|
|
|
static ULONG WINAPI dcinfo_AddRef(IDCInfo* iface)
|
|
{
|
|
convert *This = impl_from_IDCInfo(iface);
|
|
|
|
return IDataConvert_AddRef(&This->IDataConvert_iface);
|
|
}
|
|
|
|
static ULONG WINAPI dcinfo_Release(IDCInfo* iface)
|
|
{
|
|
convert *This = impl_from_IDCInfo(iface);
|
|
|
|
return IDataConvert_Release(&This->IDataConvert_iface);
|
|
}
|
|
|
|
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->IDataConvert_iface.lpVtbl = &convert_vtbl;
|
|
This->IDCInfo_iface.lpVtbl = &dcinfo_vtbl;
|
|
This->ref = 1;
|
|
This->version = 0x110;
|
|
|
|
*obj = &This->IDataConvert_iface;
|
|
|
|
return S_OK;
|
|
}
|