int ZipPlatform::WideToMultiByte(LPCWSTR lpszIn, CZipAutoBuffer &szOut, UINT uCodePage)
{
size_t wideLen = wcslen(lpszIn);
if (wideLen == 0)
{
szOut.Release();
return 0;
}
// iLen does not include terminating character
int iLen = WideCharToMultiByte(uCodePage, 0, lpszIn, (int)wideLen, szOut,
0, NULL, NULL);
if (iLen > 0)
{
szOut.Allocate(iLen, true);
iLen = WideCharToMultiByte(uCodePage, 0, lpszIn , (int)wideLen, szOut,
iLen, NULL, NULL);
ASSERT(iLen > 0);
return iLen > 0 ? iLen : -1;
}
else // here it means error
{
szOut.Release();
return -1;
}
}
bool CZipExtraField::Read(CZipStorage *pStorage, WORD uSize)
{
if (uSize == 0)
return true;
Clear();
CZipAutoBuffer buffer;
buffer.Allocate(uSize);
pStorage->Read(buffer, uSize, true);
char* position = (char*) buffer;
do
{
CZipExtraData* pExtra = new CZipExtraData();
if (!pExtra->Read(position, uSize))
{
delete pExtra;
return false;
}
int totalSize = pExtra->GetTotalSize();
if (totalSize > uSize || totalSize < 0)
return false;
position += totalSize;
uSize = (WORD)(uSize - totalSize);
Add(pExtra);
}
while (uSize > 0);
return true;
}
int ZipPlatform::WideToSingle(LPCTSTR lpWide, CZipAutoBuffer &szSingle)
{
size_t wideLen = wcslen(lpWide);
if (wideLen == 0)
{
szSingle.Release();
return 0;
}
// iLen does not include terminating character
int iLen = WideCharToMultiByte(CP_ACP,0, lpWide, wideLen, szSingle,
0, NULL, NULL);
if (iLen > 0)
{
szSingle.Allocate(iLen, true);
iLen = WideCharToMultiByte(CP_ACP,0, lpWide , wideLen, szSingle,
iLen, NULL, NULL);
ASSERT(iLen != 0);
}
else // here it means error
{
szSingle.Release();
iLen --;
}
return iLen;
}
ZIPINLINE void ZipPlatform::AnsiOem(CZipAutoBuffer& buffer, bool bAnsiToOem)
{
#ifdef _ZIP_SAFE_WINDOWS_API
UINT cpIn, cpOut;
if (bAnsiToOem)
{
cpIn = CP_ACP;
cpOut = CP_OEMCP;
}
else
{
cpIn = CP_OEMCP;
cpOut = CP_ACP;
}
CZipAutoBuffer interBuffer;
int size = buffer.GetSize();
// iLen doesn't include terminating character
int iLen = MultiByteToWideChar(cpIn, MB_PRECOMPOSED, buffer, size, NULL, 0);
if (iLen <= 0)
return;
interBuffer.Allocate(iLen * sizeof(wchar_t));
LPWSTR lpszWide = (LPWSTR)(char*)interBuffer;
iLen = MultiByteToWideChar(cpIn, MB_PRECOMPOSED, buffer, size, lpszWide, iLen);
ASSERT(iLen != 0);
// iLen does not include terminating character
size = WideCharToMultiByte(cpOut, 0, lpszWide, iLen, NULL, 0, NULL, NULL);
if (size <= 0)
return;
buffer.Allocate(size);
size = WideCharToMultiByte(cpOut, 0, lpszWide, iLen, buffer, size, NULL, NULL);
ASSERT(size != 0);
#else
if (bAnsiToOem)
CharToOemBuffA(buffer, buffer, buffer.GetSize());
else
OemToCharBuffA(buffer, buffer, buffer.GetSize());
#endif
}
void ZipCompatibility::ConvertStringToBuffer(LPCTSTR lpszString, CZipAutoBuffer& buffer, UINT uCodePage)
{
#ifdef _UNICODE
ZipPlatform::WideToMultiByte(lpszString, buffer, uCodePage);
#else
int iLen = (int)strlen(lpszString);
// iLen does not include the NULL character
buffer.Allocate(iLen);
memcpy(buffer, lpszString, (size_t)iLen);
if (uCodePage == CP_OEMCP)
ZipPlatform::AnsiOem(buffer, true);
#endif
}