public static bool IsValidVersionMark(NCLicenseDll.EvaluationData evaluationDt, short productId)
{
if (evaluationDt.Year < 2005 || evaluationDt.Year > 3500)
{
return(false);
}
if (evaluationDt.Month > 12 || evaluationDt.Days > 31)
{
return(false);
}
return(true);
}
public static NCLicenseDll.EvaluationData GetInstallTime(byte[] data, long version, short prodId)
{
NCLicenseDll.EvaluationData time = new NCLicenseDll.EvaluationData();
int evaluationDataSize = 0;
unsafe
{
evaluationDataSize = sizeof(NCLicenseDll.EvaluationData);
}
byte[] temp = new byte[evaluationDataSize];
Buffer.BlockCopy(data, (int)(g_DataOffset + version * evaluationDataSize), temp, 0, evaluationDataSize);
return(ByteArrayToStructure <NCLicenseDll.EvaluationData>(temp));
}
public static int ReadEvaluationDataManaged(int version, ref NCLicenseDll.EvaluationData evaluationData, short productId)
{
String[] systemFolder = GetStubPath();
byte[] data = null;
int fileRetryCount = 0;
for (int i = 0; i < systemFolder.Length; i++)
{
//int dwSize = 0;
bool fileExists = File.Exists(systemFolder[i]);
if (fileExists)
{
FileStream fs = File.OpenRead(systemFolder[i]);
data = new byte[(int)fs.Length];
fs.Read(data, 0, (int)fs.Length);
fs.Close();
if (data != null)
{
break;
}
}
fileRetryCount++;
}
if (fileRetryCount == systemFolder.Length || data == null)
{
return(-1);
}
//byte[] temp = new byte[data.Length - g_DataOffset];
//Buffer.BlockCopy(data, (int)g_DataOffset, temp, 0, (int)(data.Length - g_DataOffset));
NCCryptoCode.EncryptDecryptBytes(data, data.Length - (int)g_DataOffset, (int)g_DataOffset);
evaluationData = GetInstallTime(data, version, productId);
if (!IsValidVersionMark(evaluationData, productId))
{
return(-1);
}
//evaluationData.Hour = Misc::GetExtensionsUsed(prodId); //TODO: Licensing
if (evaluationData.Extensions < 0) //TODO: Licensing (These values need to be zero by them. This is not correct method)
{
evaluationData.Extensions = 0;
}
if (evaluationData.Res3 < 0)
{
evaluationData.Res3 = 0;
}
return(0);
}
public static int ReadEvaluationData(int version, ref NCLicenseDll.EvaluationData evaluationData, short productId)
{
try
{
if (Environment.OSVersion.Platform == PlatformID.Win32NT || RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return(UnManagedNCLicense.ReadEvaluationData(version, ref evaluationData, productId));
}
}
catch (DllNotFoundException)
{
// Eating this exception on purpose
// because of Nano Server
}
return(ReadEvaluationDataManaged(version, ref evaluationData, productId));
}
public static extern int ReadEvaluationData(
int version,
ref NCLicenseDll.EvaluationData time, short prodId);
