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Hybrids packet builder
Discussion on Hybrids packet builder within the CO2 Private Server forum part of the Conquer Online 2 category.
02/16/2011, 00:58
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#1
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Join Date: Feb 2011
Posts: 335
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Hybrids packet builder
Alright so hybrids packet builder;
It has 5 functions, each doing these:
Writing a UInt16
Writing a UInt32
Writing a UInt64
Writing a String
Writing a String with Length
Now I made this function, and I'm wanting it to be universal, used to do all of the above. Would this work?
Code:
public static void WriteObject(Object Arg, Byte[] Buffer, UInt16 Offset, Boolean stringLength = false)
{
#region String function
if (Arg.GetType() == typeof(String))
{
#region Write string to array of data
if (!stringLength)
{
ushort i = 0;
while (i < Convert.ToString(Arg).Length)
{
Buffer[(ushort)(i + Offset)] = (byte)Convert.ToString(Arg)[i];
i = (ushort)(i + 1);
}
}
#endregion
#region Write string with length
else
{
Buffer[Offset] = (byte)Convert.ToString(Arg).Length;
Offset++;
ushort x = 0;
while (x < Convert.ToString(Arg).Length)
{
Buffer[(ushort)(x + Offset)] = (byte)Convert.ToString(Arg)[x];
x = (ushort)(x + 1);
}
}
#endregion
}
#endregion
#region Writing 2 bytes of data
if (Arg.GetType() == typeof(UInt16))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToUInt16(Arg) >> 8);
}
if (Arg.GetType() == typeof(Int16))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToUInt16(Arg) >> 8);
}
#endregion
#region Writing 4 bytes of data
if (Arg.GetType() == typeof(Int32))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToInt32(Arg) >> 8);
Buffer[Offset + 2] = (byte)(Convert.ToInt32(Arg) >> 16);
Buffer[Offset + 3] = (byte)(Convert.ToInt32(Arg) >> 24);
}
if (Arg.GetType() == typeof(UInt32))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToUInt32(Arg) >> 8);
Buffer[Offset + 2] = (byte)(Convert.ToUInt32(Arg) >> 16);
Buffer[Offset + 3] = (byte)(Convert.ToUInt32(Arg) >> 24);
}
#endregion
#region Writing 8 bytes of data
if (Arg.GetType() == typeof(Int64))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToInt64(Arg) >> 8);
Buffer[Offset + 2] = (byte)(Convert.ToInt64(Arg) >> 16);
Buffer[Offset + 3] = (byte)(Convert.ToInt64(Arg) >> 24);
Buffer[Offset + 4] = (byte)(Convert.ToInt64(Arg) >> 32);
Buffer[Offset + 5] = (byte)(Convert.ToInt64(Arg) >> 40);
Buffer[Offset + 6] = (byte)(Convert.ToInt64(Arg) >> 48);
Buffer[Offset + 7] = (byte)(Convert.ToInt64(Arg) >> 56);
}
if (Arg.GetType() == typeof(UInt64))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToUInt64(Arg) >> 8);
Buffer[Offset + 2] = (byte)(Convert.ToUInt64(Arg) >> 16);
Buffer[Offset + 3] = (byte)(Convert.ToUInt64(Arg) >> 24);
Buffer[Offset + 4] = (byte)(Convert.ToUInt64(Arg) >> 32);
Buffer[Offset + 5] = (byte)(Convert.ToUInt64(Arg) >> 40);
Buffer[Offset + 6] = (byte)(Convert.ToUInt64(Arg) >> 48);
Buffer[Offset + 7] = (byte)(Convert.ToUInt64(Arg) >> 56);
}
#endregion
}
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02/16/2011, 01:03
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#2
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elite*gold: 0
Join Date: May 2006
Posts: 1,190
Received Thanks: 516
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Looks **** sexy!
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02/16/2011, 01:03
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#3
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elite*gold: 0
Join Date: Nov 2006
Posts: 805
Received Thanks: 464
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hi arco
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02/16/2011, 01:25
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#4
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elite*gold: 20
Join Date: Mar 2006
Posts: 6,126
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It would, but using pointers you could do that in like 1/8th of the code...
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02/16/2011, 01:37
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#5
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Join Date: Feb 2011
Posts: 335
Received Thanks: 170
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Quote:
Originally Posted by Korvacs
It would, but using pointers you could do that in like 1/8th of the code...
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I've NEVER used pointers, so mind elaborating on that please 
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02/16/2011, 02:26
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#6
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Join Date: May 2006
Posts: 1,190
Received Thanks: 516
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Quote:
Originally Posted by Yup Arco
I've NEVER used pointers, so mind elaborating on that please |
Don't know if this helps
I used google 
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02/16/2011, 02:50
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#7
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elite*gold: 0
Join Date: Aug 2009
Posts: 930
Received Thanks: 448
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use c++ you rat
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02/16/2011, 04:39
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#8
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elite*gold: 0
Join Date: Jan 2008
Posts: 1,444
Received Thanks: 1,176
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Quote:
Originally Posted by Yup Arco
Alright so hybrids packet builder;
It has 5 functions, each doing these:
Writing a UInt16
Writing a UInt32
Writing a UInt64
Writing a String
Writing a String with Length
Now I made this function, and I'm wanting it to be universal, used to do all of the above. Would this work?
public static void WriteObject(Object Arg, Byte[] Buffer, UInt16 Offset, Boolean stringLength = false)
{
#region String function
if (Arg.GetType() == typeof(String))
{
#region Write string to array of data
if (!stringLength)
{
ushort i = 0;
while (i < Convert.ToString(Arg).Length)
{
Buffer[(ushort)(i + Offset)] = (byte)Convert.ToString(Arg)[i];
i = (ushort)(i + 1);
}
}
#endregion
#region Write string with length
else
{
Buffer[Offset] = (byte)Convert.ToString(Arg).Length;
Offset++;
ushort x = 0;
while (x < Convert.ToString(Arg).Length)
{
Buffer[(ushort)(x + Offset)] = (byte)Convert.ToString(Arg)[x];
x = (ushort)(x + 1);
}
}
#endregion
}
#endregion
#region Writing 2 bytes of data
if (Arg.GetType() == typeof(UInt16))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToUInt16(Arg) >> 8);
}
if (Arg.GetType() == typeof(Int16))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToUInt16(Arg) >> 8);
}
#endregion
#region Writing 4 bytes of data
if (Arg.GetType() == typeof(Int32))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToInt32(Arg) >> 8);
Buffer[Offset + 2] = (byte)(Convert.ToInt32(Arg) >> 16);
Buffer[Offset + 3] = (byte)(Convert.ToInt32(Arg) >> 24);
}
if (Arg.GetType() == typeof(UInt32))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToUInt32(Arg) >> 8);
Buffer[Offset + 2] = (byte)(Convert.ToUInt32(Arg) >> 16);
Buffer[Offset + 3] = (byte)(Convert.ToUInt32(Arg) >> 24);
}
#endregion
#region Writing 8 bytes of data
if (Arg.GetType() == typeof(Int64))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToInt64(Arg) >> 8);
Buffer[Offset + 2] = (byte)(Convert.ToInt64(Arg) >> 16);
Buffer[Offset + 3] = (byte)(Convert.ToInt64(Arg) >> 24);
Buffer[Offset + 4] = (byte)(Convert.ToInt64(Arg) >> 32);
Buffer[Offset + 5] = (byte)(Convert.ToInt64(Arg) >> 40);
Buffer[Offset + 6] = (byte)(Convert.ToInt64(Arg) >> 48);
Buffer[Offset + 7] = (byte)(Convert.ToInt64(Arg) >> 56);
}
if (Arg.GetType() == typeof(UInt64))
{
Buffer[Offset] = (byte)(Arg);
Buffer[Offset + 1] = (byte)(Convert.ToUInt64(Arg) >> 8);
Buffer[Offset + 2] = (byte)(Convert.ToUInt64(Arg) >> 16);
Buffer[Offset + 3] = (byte)(Convert.ToUInt64(Arg) >> 24);
Buffer[Offset + 4] = (byte)(Convert.ToUInt64(Arg) >> 32);
Buffer[Offset + 5] = (byte)(Convert.ToUInt64(Arg) >> 40);
Buffer[Offset + 6] = (byte)(Convert.ToUInt64(Arg) >> 48);
Buffer[Offset + 7] = (byte)(Convert.ToUInt64(Arg) >> 56);
}
#endregion
}
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Can be optimized... Here a rapid version. It should works, but I can't test.
Code:
public static void WriteObject(Object Arg, Byte[] Buffer, UInt16 Offset, Boolean stringLength)
{
Type Type = Arg.GetType();
Int32 Length = 0;
if (Type == typeof(String))
Length = (Arg as String).Length;
else if (Type == typeof(Byte[]))
Length = (Arg as Byte[]).Length;
else if (Type == typeof(SByte) || Type == typeof(Byte))
Length = 1;
else if (Type == typeof(Int16) || Type == typeof(UInt16))
Length = 2;
else if (Type == typeof(Int32) || Type == typeof(UInt32))
Length = 4;
else if (Type == typeof(Int64) || Type == typeof(UInt64))
Length = 8;
if (Length < 1)
return;
Int32 Pos = Offset;
if (Type == typeof(String) && stringLength)
{
Buffer[Pos] = (Byte)Length;
Pos++;
}
if (Type == typeof(String))
{
String Value = (Arg as String);
for (Int32 i = 0; i < Length; i++)
{
Buffer[Pos] = (Byte)Value[i];
Pos++;
}
}
else if (Type == typeof(Byte[]))
{
Byte[] Value = (Arg as Byte[]);
for (Int32 i = 0; i < Length; i++)
{
Buffer[Pos] = (Byte)Value[i];
Pos++;
}
}
else
{
UInt64 Value = Convert.ToUInt64(Arg);
for (Int32 i = 0; i < Length; i++)
{
Buffer[Pos] = (Byte)(Value >> (8 * i));
Pos++;
}
}
}
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02/16/2011, 05:12
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#9
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elite*gold: 0
Join Date: Jun 2009
Posts: 787
Received Thanks: 314
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Code:
public struct PasswordSeedPacket
{
public ushort Size;
public ushort Type;
public uint Seed;
public PasswordSeedPacket(uint s)
{
Seed = s;
Size = 8;
Type = 0x423;
}
}
// ...
{
// ...
PasswordSeedPacket seed = new PasswordSeedPacket(rand(..));
socket.send(&seed, seed.Size [,...]);
}
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02/16/2011, 11:28
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#10
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elite*gold: 0
Join Date: Oct 2009
Posts: 768
Received Thanks: 550
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Quote:
Originally Posted by Korvacs
It would, but using pointers you could do that in like 1/8th of the code...
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Code:
public static unsafe void WriteObject(Object Arg, Byte[] Buffer, UInt16 Offset, Boolean stringLength = false)
{
fixed (byte* buffer = Buffer)
{
#region String function
if (Arg is String)
{
#region Write string to array of data
if (!stringLength)
{
ushort i = 0;
string Argument = Convert.ToString(Arg);
while (i < Argument.Length)
{
*((byte*)(buffer + Offset + i)) = (byte)Argument[i];
i++;
}
}
#endregion
#region Write string with length
else
{
string Argument = Convert.ToString(Arg);
*((byte*)(buffer + Offset)) = (byte)Argument.Length;
ushort i = 1;
while (i < Argument.Length)
{
*((byte*)(buffer + Offset + i)) = (byte)Argument[i];
i++;
}
}
#endregion
}
#endregion
#region Writing 1 byte of data
if (Arg is Byte)
*((Byte*)(buffer + Offset)) = Arg;
if (Arg is SByte)
*((SByte*)(buffer + Offset)) = Arg;
#endregion
#region Writing 2 bytes of data
if (Arg is Int16)
*((Int16*)(buffer + Offset)) = Arg;
if (Arg is UInt16)
*((UInt16*)(buffer + Offset)) = Arg;
#endregion
#region Writing 4 bytes of data
if (Arg is Int32)
*((Int32*)(buffer + Offset)) = Arg;
if (Arg is UInt32)
*((UInt32*)(buffer + Offset)) = Arg;
#endregion
#region Writing 8 bytes of data
if (Arg is Int64)
*((Int64*)(buffer + Offset)) = Arg;
if (Arg is UInt64)
*((UInt64*)(buffer + Offset)) = Arg;
#endregion
}
}
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02/16/2011, 11:34
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#11
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elite*gold: 20
Join Date: Mar 2006
Posts: 6,126
Received Thanks: 2,518
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Put some returns in there, otherwise all of the cpu time you save by using pointers is wasted by performing all of those if statements. *nods*
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02/16/2011, 17:22
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#12
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elite*gold: 20
Join Date: Aug 2005
Posts: 1,734
Received Thanks: 1,001
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I suppose this would work also.
PHP Code:
static void Write<T>(byte[] Buffer, int Offset, T Value, bool IncludeLength = true)
{
if (typeof(T) == typeof(string))
{
string StringRepresentation = Convert.ToString(Value);
byte Size = (byte)StringRepresentation.Length;
if (IncludeLength)
{
Buffer[Offset++] = Size;
}
for (byte i = 0; i < Size; i++)
{
Buffer[Offset + i] = (byte)StringRepresentation[i];
}
}
else
{
int Size = Marshal.SizeOf(Value);
IntPtr Pointer = Marshal.AllocHGlobal(Size);
try
{
Marshal.StructureToPtr(Value, Pointer, false);
Marshal.Copy(Pointer, Buffer, Offset, Size);
}
finally
{
Marshal.FreeHGlobal(Pointer);
}
}
}
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