Sweden-Number/dlls/propsys/propvar.c

286 lines
7.4 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;
}
/******************************************************************
* PropVariantChangeType (PROPSYS.@)
*/
HRESULT WINAPI PropVariantChangeType(PROPVARIANT *ppropvarDest, REFPROPVARIANT propvarSrc,
PROPVAR_CHANGE_FLAGS flags, VARTYPE vt)
{
FIXME("(%p, %p, %d, %d, %d): semi-stub!\n", ppropvarDest, propvarSrc,
propvarSrc->vt, flags, vt);
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;
}
}