static bool
ReadCompaqID()
{
#if defined(_WIN32_WCE)
PROCESS_INFORMATION pi;
if (CreateProcess(_T("\\windows\\CreateAssetFile.exe"), NULL, NULL, NULL,
FALSE, 0, NULL, NULL, NULL, &pi)) {
WaitForSingleObject(pi.hProcess, 1000);
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
FileHandle file(_T("\\windows\\cpqAssetData.dat"), _T("rb"));
if (!file.IsOpen() || !file.Seek(976, SEEK_SET))
return false;
TCHAR buffer[ARRAY_SIZE(asset_number)];
size_t length = file.Read(buffer, ARRAY_SIZE(buffer) - 1, sizeof(buffer[0]));
buffer[length] = _T('\0');
return SetAssetNumber(buffer);
#else
return false;
#endif
}
static bool
ReadUUID()
{
#if defined(IOCTL_HAL_GET_DEVICEID) && defined(FILE_DEVICE_HAL)
BOOL fRes;
#define GUIDBuffsize 100
unsigned char GUIDbuffer[GUIDBuffsize];
int eLast = 0;
int i;
unsigned long uNumReturned=0;
int iBuffSizeIn=0;
unsigned long temp, Asset;
GUID Guid;
// approach followed: http://blogs.msdn.com/jehance/archive/2004/07/12/181116.aspx
// 1) send 16 byte buffer - some older devices need this
// 2) if buffer is wrong size, resize buffer accordingly and retry
// 3) take first 16 bytes of buffer and process. Buffer returned may be any size
// First try exactly 16 bytes, some older PDAs require exactly 16 byte buffer
asset_number[0]= '\0';
iBuffSizeIn = sizeof(Guid);
memset(GUIDbuffer, 0, iBuffSizeIn);
fRes = KernelIoControl(IOCTL_HAL_GET_DEVICEID, 0, 0, GUIDbuffer,
iBuffSizeIn, &uNumReturned);
if(fRes == false) {
// try larger buffer
eLast = GetLastError();
if (ERROR_INSUFFICIENT_BUFFER != eLast)
return false;
else {
// wrong buffer
iBuffSizeIn = uNumReturned;
memset(GUIDbuffer, 0, iBuffSizeIn);
fRes = KernelIoControl(IOCTL_HAL_GET_DEVICEID, 0, 0, GUIDbuffer,
iBuffSizeIn, &uNumReturned);
eLast = GetLastError();
if(fRes == false)
return false;
}
}
// here assume we have data in GUIDbuffer of length uNumReturned
memcpy(&Guid, GUIDbuffer, sizeof(Guid));
temp = Guid.Data2;
temp = temp << 16;
temp += Guid.Data3;
Asset = temp ^ Guid.Data1;
temp = 0;
for(i = 0; i < 4; i++) {
temp = temp << 8;
temp += Guid.Data4[i];
}
Asset = Asset ^ temp;
temp = 0;
for(i = 0; i < 4; i++) {
temp = temp << 8;
temp += Guid.Data4[i + 4];
}
Asset = Asset ^ temp;
TCHAR buffer[20];
_stprintf(asset_number, _T("%08X%08X"), Asset, Guid.Data1);
return SetAssetNumber(buffer);
#else
return false;
#endif
}
