wine/dlls/propsys/propvar.c
2013-11-21 13:36:18 +01:00

600 lines
14 KiB
C

/*
* PropVariant implementation
*
* Copyright 2008 James Hawkins for CodeWeavers
*
* 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>
#include <stdio.h>
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "winreg.h"
#include "winuser.h"
#include "shlobj.h"
#include "propvarutil.h"
#include "wine/debug.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(propsys);
static HRESULT PROPVAR_ConvertFILETIME(PROPVARIANT *ppropvarDest,
REFPROPVARIANT propvarSrc, VARTYPE vt)
{
SYSTEMTIME time;
FileTimeToSystemTime(&propvarSrc->u.filetime, &time);
switch (vt)
{
case VT_LPSTR:
{
static const char format[] = "%04d/%02d/%02d:%02d:%02d:%02d.%03d";
ppropvarDest->u.pszVal = HeapAlloc(GetProcessHeap(), 0,
lstrlenA(format) + 1);
if (!ppropvarDest->u.pszVal)
return E_OUTOFMEMORY;
sprintf(ppropvarDest->u.pszVal, format, time.wYear, time.wMonth,
time.wDay, time.wHour, time.wMinute,
time.wSecond, time.wMilliseconds);
return S_OK;
}
default:
FIXME("Unhandled target type: %d\n", vt);
}
return E_FAIL;
}
static HRESULT PROPVAR_ConvertNumber(REFPROPVARIANT pv, int dest_bits,
BOOL dest_signed, LONGLONG *res)
{
BOOL src_signed;
switch (pv->vt)
{
case VT_I1:
src_signed = TRUE;
*res = pv->u.cVal;
break;
case VT_UI1:
src_signed = FALSE;
*res = pv->u.bVal;
break;
case VT_I2:
src_signed = TRUE;
*res = pv->u.iVal;
break;
case VT_UI2:
src_signed = FALSE;
*res = pv->u.uiVal;
break;
case VT_I4:
src_signed = TRUE;
*res = pv->u.lVal;
break;
case VT_UI4:
src_signed = FALSE;
*res = pv->u.ulVal;
break;
case VT_I8:
src_signed = TRUE;
*res = pv->u.hVal.QuadPart;
break;
case VT_UI8:
src_signed = FALSE;
*res = pv->u.uhVal.QuadPart;
break;
case VT_EMPTY:
src_signed = FALSE;
*res = 0;
break;
default:
FIXME("unhandled vt %d\n", pv->vt);
return E_NOTIMPL;
}
if (*res < 0 && src_signed != dest_signed)
return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
if (dest_bits < 64)
{
if (dest_signed)
{
if (*res >= ((LONGLONG)1 << (dest_bits-1)) ||
*res < ((LONGLONG)-1 << (dest_bits-1)))
return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
}
else
{
if ((ULONGLONG)(*res) >= ((ULONGLONG)1 << dest_bits))
return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
}
}
return S_OK;
}
HRESULT WINAPI PropVariantToInt16(REFPROPVARIANT propvarIn, SHORT *ret)
{
LONGLONG res;
HRESULT hr;
TRACE("%p,%p\n", propvarIn, ret);
hr = PROPVAR_ConvertNumber(propvarIn, 16, TRUE, &res);
if (SUCCEEDED(hr)) *ret = (SHORT)res;
return hr;
}
HRESULT WINAPI PropVariantToInt32(REFPROPVARIANT propvarIn, LONG *ret)
{
LONGLONG res;
HRESULT hr;
TRACE("%p,%p\n", propvarIn, ret);
hr = PROPVAR_ConvertNumber(propvarIn, 32, TRUE, &res);
if (SUCCEEDED(hr)) *ret = (LONG)res;
return hr;
}
HRESULT WINAPI PropVariantToInt64(REFPROPVARIANT propvarIn, LONGLONG *ret)
{
LONGLONG res;
HRESULT hr;
TRACE("%p,%p\n", propvarIn, ret);
hr = PROPVAR_ConvertNumber(propvarIn, 64, TRUE, &res);
if (SUCCEEDED(hr)) *ret = (LONGLONG)res;
return hr;
}
HRESULT WINAPI PropVariantToUInt16(REFPROPVARIANT propvarIn, USHORT *ret)
{
LONGLONG res;
HRESULT hr;
TRACE("%p,%p\n", propvarIn, ret);
hr = PROPVAR_ConvertNumber(propvarIn, 16, FALSE, &res);
if (SUCCEEDED(hr)) *ret = (USHORT)res;
return hr;
}
HRESULT WINAPI PropVariantToUInt32(REFPROPVARIANT propvarIn, ULONG *ret)
{
LONGLONG res;
HRESULT hr;
TRACE("%p,%p\n", propvarIn, ret);
hr = PROPVAR_ConvertNumber(propvarIn, 32, FALSE, &res);
if (SUCCEEDED(hr)) *ret = (ULONG)res;
return hr;
}
HRESULT WINAPI PropVariantToUInt64(REFPROPVARIANT propvarIn, ULONGLONG *ret)
{
LONGLONG res;
HRESULT hr;
TRACE("%p,%p\n", propvarIn, ret);
hr = PROPVAR_ConvertNumber(propvarIn, 64, FALSE, &res);
if (SUCCEEDED(hr)) *ret = (ULONGLONG)res;
return hr;
}
/******************************************************************
* PropVariantChangeType (PROPSYS.@)
*/
HRESULT WINAPI PropVariantChangeType(PROPVARIANT *ppropvarDest, REFPROPVARIANT propvarSrc,
PROPVAR_CHANGE_FLAGS flags, VARTYPE vt)
{
HRESULT hr;
FIXME("(%p, %p, %d, %d, %d): semi-stub!\n", ppropvarDest, propvarSrc,
propvarSrc->vt, flags, vt);
switch (vt)
{
case VT_I2:
{
SHORT res;
hr = PropVariantToInt16(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I2;
ppropvarDest->u.iVal = res;
}
return hr;
}
case VT_UI2:
{
USHORT res;
hr = PropVariantToUInt16(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI2;
ppropvarDest->u.uiVal = res;
}
return hr;
}
case VT_I4:
{
LONG res;
hr = PropVariantToInt32(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I4;
ppropvarDest->u.lVal = res;
}
return hr;
}
case VT_UI4:
{
ULONG res;
hr = PropVariantToUInt32(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI4;
ppropvarDest->u.ulVal = res;
}
return hr;
}
case VT_I8:
{
LONGLONG res;
hr = PropVariantToInt64(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I8;
ppropvarDest->u.hVal.QuadPart = res;
}
return hr;
}
case VT_UI8:
{
ULONGLONG res;
hr = PropVariantToUInt64(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI8;
ppropvarDest->u.uhVal.QuadPart = res;
}
return hr;
}
}
switch (propvarSrc->vt)
{
case VT_FILETIME:
return PROPVAR_ConvertFILETIME(ppropvarDest, propvarSrc, vt);
default:
FIXME("Unhandled source type: %d\n", propvarSrc->vt);
}
return E_FAIL;
}
static void PROPVAR_GUIDToWSTR(REFGUID guid, WCHAR *str)
{
static const 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};
sprintfW(str, format, guid->Data1, guid->Data2, guid->Data3,
guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
}
HRESULT WINAPI InitPropVariantFromGUIDAsString(REFGUID guid, PROPVARIANT *ppropvar)
{
TRACE("(%p %p)\n", guid, ppropvar);
if(!guid)
return E_FAIL;
ppropvar->vt = VT_LPWSTR;
ppropvar->u.pwszVal = CoTaskMemAlloc(39*sizeof(WCHAR));
if(!ppropvar->u.pwszVal)
return E_OUTOFMEMORY;
PROPVAR_GUIDToWSTR(guid, ppropvar->u.pwszVal);
return S_OK;
}
HRESULT WINAPI InitVariantFromGUIDAsString(REFGUID guid, VARIANT *pvar)
{
TRACE("(%p %p)\n", guid, pvar);
if(!guid) {
FIXME("guid == NULL\n");
return E_FAIL;
}
V_VT(pvar) = VT_BSTR;
V_BSTR(pvar) = SysAllocStringLen(NULL, 38);
if(!V_BSTR(pvar))
return E_OUTOFMEMORY;
PROPVAR_GUIDToWSTR(guid, V_BSTR(pvar));
return S_OK;
}
HRESULT WINAPI InitPropVariantFromBuffer(const VOID *pv, UINT cb, PROPVARIANT *ppropvar)
{
TRACE("(%p %u %p)\n", pv, cb, ppropvar);
ppropvar->u.caub.pElems = CoTaskMemAlloc(cb);
if(!ppropvar->u.caub.pElems)
return E_OUTOFMEMORY;
ppropvar->vt = VT_VECTOR|VT_UI1;
ppropvar->u.caub.cElems = cb;
memcpy(ppropvar->u.caub.pElems, pv, cb);
return S_OK;
}
HRESULT WINAPI InitVariantFromBuffer(const VOID *pv, UINT cb, VARIANT *pvar)
{
SAFEARRAY *arr;
void *data;
HRESULT hres;
TRACE("(%p %u %p)\n", pv, cb, pvar);
arr = SafeArrayCreateVector(VT_UI1, 0, cb);
if(!arr)
return E_OUTOFMEMORY;
hres = SafeArrayAccessData(arr, &data);
if(FAILED(hres)) {
SafeArrayDestroy(arr);
return hres;
}
memcpy(data, pv, cb);
hres = SafeArrayUnaccessData(arr);
if(FAILED(hres)) {
SafeArrayDestroy(arr);
return hres;
}
V_VT(pvar) = VT_ARRAY|VT_UI1;
V_ARRAY(pvar) = arr;
return S_OK;
}
static inline DWORD PROPVAR_HexToNum(const WCHAR *hex)
{
DWORD ret;
if(hex[0]>='0' && hex[0]<='9')
ret = hex[0]-'0';
else if(hex[0]>='a' && hex[0]<='f')
ret = hex[0]-'a'+10;
else if(hex[0]>='A' && hex[0]<='F')
ret = hex[0]-'A'+10;
else
return -1;
ret <<= 4;
if(hex[1]>='0' && hex[1]<='9')
return ret + hex[1]-'0';
else if(hex[1]>='a' && hex[1]<='f')
return ret + hex[1]-'a'+10;
else if(hex[1]>='A' && hex[1]<='F')
return ret + hex[1]-'A'+10;
else
return -1;
}
static inline HRESULT PROPVAR_WCHARToGUID(const WCHAR *str, int len, GUID *guid)
{
DWORD i, val=0;
const WCHAR *p;
memset(guid, 0, sizeof(GUID));
if(len!=38 || str[0]!='{' || str[9]!='-' || str[14]!='-'
|| str[19]!='-' || str[24]!='-' || str[37]!='}') {
WARN("Error parsing %s\n", debugstr_w(str));
return E_INVALIDARG;
}
p = str+1;
for(i=0; i<4 && val!=-1; i++) {
val = PROPVAR_HexToNum(p);
guid->Data1 = (guid->Data1<<8) + val;
p += 2;
}
p++;
for(i=0; i<2 && val!=-1; i++) {
val = PROPVAR_HexToNum(p);
guid->Data2 = (guid->Data2<<8) + val;
p += 2;
}
p++;
for(i=0; i<2 && val!=-1; i++) {
val = PROPVAR_HexToNum(p);
guid->Data3 = (guid->Data3<<8) + val;
p += 2;
}
p++;
for(i=0; i<8 && val!=-1; i++) {
if(i == 2)
p++;
val = guid->Data4[i] = PROPVAR_HexToNum(p);
p += 2;
}
if(val == -1) {
WARN("Error parsing %s\n", debugstr_w(str));
memset(guid, 0, sizeof(GUID));
return E_INVALIDARG;
}
return S_OK;
}
HRESULT WINAPI PropVariantToGUID(const PROPVARIANT *ppropvar, GUID *guid)
{
TRACE("%p %p)\n", ppropvar, guid);
switch(ppropvar->vt) {
case VT_BSTR:
return PROPVAR_WCHARToGUID(ppropvar->u.bstrVal, SysStringLen(ppropvar->u.bstrVal), guid);
case VT_LPWSTR:
return PROPVAR_WCHARToGUID(ppropvar->u.pwszVal, strlenW(ppropvar->u.pwszVal), guid);
default:
FIXME("unsupported vt: %d\n", ppropvar->vt);
return E_NOTIMPL;
}
}
HRESULT WINAPI VariantToGUID(const VARIANT *pvar, GUID *guid)
{
TRACE("(%p %p)\n", pvar, guid);
switch(V_VT(pvar)) {
case VT_BSTR: {
HRESULT hres = PROPVAR_WCHARToGUID(V_BSTR(pvar), SysStringLen(V_BSTR(pvar)), guid);
if(hres == E_INVALIDARG)
return E_FAIL;
return hres;
}
default:
FIXME("unsupported vt: %d\n", V_VT(pvar));
return E_NOTIMPL;
}
}
static BOOL isemptyornull(const PROPVARIANT *propvar)
{
if (propvar->vt == VT_EMPTY || propvar->vt == VT_NULL)
return TRUE;
if ((propvar->vt & VT_ARRAY) == VT_ARRAY)
{
int i;
for (i=0; i<propvar->u.parray->cDims; i++)
{
if (propvar->u.parray->rgsabound[i].cElements != 0)
break;
}
return i == propvar->u.parray->cDims;
}
/* FIXME: vectors, byrefs, errors? */
return FALSE;
}
INT WINAPI PropVariantCompareEx(REFPROPVARIANT propvar1, REFPROPVARIANT propvar2,
PROPVAR_COMPARE_UNIT unit, PROPVAR_COMPARE_FLAGS flags)
{
const PROPVARIANT *propvar2_converted;
PROPVARIANT propvar2_static;
HRESULT hr;
INT res=-1;
TRACE("%p,%p,%x,%x\n", propvar1, propvar2, unit, flags);
if (isemptyornull(propvar1))
{
if (isemptyornull(propvar2))
return 0;
return (flags & PVCF_TREATEMPTYASGREATERTHAN) ? 1 : -1;
}
if (isemptyornull(propvar2))
return (flags & PVCF_TREATEMPTYASGREATERTHAN) ? -1 : 1;
if (propvar1->vt != propvar2->vt)
{
hr = PropVariantChangeType(&propvar2_static, propvar2, 0, propvar1->vt);
if (FAILED(hr))
return -1;
propvar2_converted = &propvar2_static;
}
else
propvar2_converted = propvar2;
#define CMP_INT_VALUE(var) do { \
if (propvar1->u.var > propvar2_converted->u.var) \
res = 1; \
else if (propvar1->u.var < propvar2_converted->u.var) \
res = -1; \
else \
res = 0; \
} while (0)
switch (propvar1->vt)
{
case VT_I1:
CMP_INT_VALUE(cVal);
break;
case VT_UI1:
CMP_INT_VALUE(bVal);
break;
case VT_I2:
CMP_INT_VALUE(iVal);
break;
case VT_UI2:
CMP_INT_VALUE(uiVal);
break;
case VT_I4:
CMP_INT_VALUE(lVal);
break;
case VT_UI4:
CMP_INT_VALUE(uiVal);
break;
case VT_I8:
CMP_INT_VALUE(hVal.QuadPart);
break;
case VT_UI8:
CMP_INT_VALUE(uhVal.QuadPart);
break;
case VT_BSTR:
/* FIXME: Use string flags. */
res = lstrcmpW(propvar1->u.bstrVal, propvar2->u.bstrVal);
break;
default:
FIXME("vartype %d not handled\n", propvar1->vt);
res = -1;
break;
}
if (propvar2_converted == &propvar2_static)
PropVariantClear(&propvar2_static);
return res;
}