/// <summary>
/// Decodes an address out of a PDU string.
/// </summary>
/// <param name="pdu">The PDU string to use.</param>
/// <param name="index">The index where to start in the string.</param>
/// <param name="address">The address (phone number) read.</param>
/// <param name="addressType">The address type of the read address.</param>
public static void DecodeGeneralAddress(string pdu, ref int index, out string address, out byte addressType)
{
int num;
int num1 = index;
int num2 = num1;
index = num1 + 1;
byte num3 = BcdWorker.GetByte(pdu, num2);
int num4 = index;
int num5 = num4;
index = num4 + 1;
addressType = BcdWorker.GetByte(pdu, num5);
if (num3 <= 0)
{
address = string.Empty;
return;
}
else
{
bool flag = false;
if (num3 % 2 != 0)
{
num = num3 + 1;
}
else
{
num = (int)num3;
}
int length = num / 2;
if (index * 2 + length * 2 > pdu.Length - length * 2)
{
length = (pdu.Length - index * 2) / 2;
flag = true;
}
AddressType addressType1 = new AddressType(addressType);
if (addressType1.Ton != 5)
{
string bytesString = BcdWorker.GetBytesString(pdu, index, length);
index = index + length;
if (flag)
{
address = BcdWorker.DecodeSemiOctets(bytesString).Substring(0, length * 2);
return;
}
else
{
address = BcdWorker.DecodeSemiOctets(bytesString).Substring(0, num3);
return;
}
}
else
{
byte[] bytes = BcdWorker.GetBytes(pdu, index, length);
index = index + length;
address = PduPartsEx.Decode7BitText(bytes);
return;
}
}
}
/// <summary>
/// Decodes text from user data in the specified data coding scheme.
/// </summary>
/// <param name="userData">The user data to decode. Must contain text according to the specified data coding scheme.</param>
/// <param name="dataCodingScheme">The data coding scheme specified in the PDU.</param>
/// <returns>The decoded user data.</returns>
public static string DecodeText(byte[] userData, byte dataCodingScheme)
{
string str;
byte alphabet = DataCodingScheme.Decode(dataCodingScheme).Alphabet;
byte num = alphabet;
switch (num)
{
case 0:
{
str = PduPartsEx.Decode7BitText(userData);
break;
}
case 1:
{
//Label0:
str = PduPartsEx.Decode7BitText(userData);
break;
}
case 2:
{
str = PduPartsEx.DecodeUcs2Text(userData);
break;
}
default:
{
//goto Label0;
str = PduPartsEx.Decode7BitText(userData);
break;
}
}
return(str);
}
