Hi.
I want to know if I understand.

To send a Descriptor header I must to do this struct:

string 16 characters (to Descriptor ID)
integer (to payload descriptor)
integer (to TTL)
integer (to HOPS)
long (to payload lenght)

Then I must to create a struct {

} containing this fields and send it to other servents, that´s correct?

If you plan on using this same struct to create headers from, then each of the above fields should not be declared as integers. They are each only one byte long whereas an integer is 2 bytes long. Declare them as either "char" or "BYTE" (if your compiler supports the latter) instead.

Don't re-write the world. See Gnucleus or gtk-gnutella source code.

Where can I find that source code?