PureBasic Forum

I been constructing my packets in memory. Now I am lost when it comes to breaking down a string and adding each peice to the buffer byte by byte. What I am trying to accomplish is converting a preference file read string, and changing it into a byte array. So that I can add it to my packet.

Example:



I have tried adding it to the buffer as a string using PokeS() but the client doesn't seem to respond to the packet if I do it like that. I am trying to do this with an integer too, the client doesn't seem to like packets unless they are made up entirely of bytes.

Pause your program and look at the memory with

Choose the byte table and then choose the string table to confirm your memory is as you like?

The values are always bytes, even floating point is just a collection of bytes.

It is probably the length of the string, usually indicated in PureBasic by the ending Null. If you are forming a packet do you indicate the length of the string, followed by the bytes for the string data or are you placing the bytes of string data followed by a Null?

If you are doing the first one, the client reads the length and then retrieves that number of additional bytes for the string data.
If you are doing the second one, the client reads the string data until a Null is read.

Yea, I know that much. Every piece of data is represented as a byte. It just must of been how I used it. This seems to work.



Edit: Now trying to figure out a unicode/character... Trying to write a port into memory.



And when I sniff the packet it comes out as 1010 instead of 100E.

Not really:


I guess your problem is somewhere else.

Ends up:

when sent via SendNetworkData(). It should be:

I've tried to figure this out several times before, think I came to the conclusion a few days ago that it was an internal bug with PB.

Hi,
Results in: 0x100E is correct!
What you need is to convert this stuff in network byte order (Big-Endian).
But I can not see 0x1010

Bernd

P.S.: Maybe the 0x0E is overwritten by something else.

Strange it works now. Must be I have setup the Pos wrong carrying the pointer from the beginning of the packet. Here is how I have it now and works (bytes need to be reversed back in order).



Example:

Hi,

for your BigEndian problem:Bernd