[longer_tcz]

how costruction protocol use: raw socket and MAC address ?

[wje_lf]

You want to build your own protocol based on raw sockets and MAC addresses?

People don't ordinarily do that sort of thing. You're not likely to find too much help on this or any other Linux forum site.

All I can suggest is that you first have a thorough understanding of the regular Internet Protocol (IP).

You would do well to run (not walk) to your nearset bookseller and order the book published by Addison-Wesley entitled UNIX Network Programming, volume 1, by W. Richard Stevens of happy memory.

W. Richard Stevens has written other excellent books about network programming, published by Addison-Wesley, but I'd start there.

Good luck!

[longer_tcz]

I have read that book, and I haven`t found anything useful.
I`m not sure if solution on the site

In Internet I havent found info about building protocol..


communicator is protocol too (maybe, i dont sure)

[wje_lf]

If you study the IP (Internet Protocol) thoroughly, inside and out, you'll be able to figure out how to build your own protocol.

To do that, look at these Addison-Wesley books:

TCP/IP Illustrated, volume 1, by W. Richard Stevens
TCP/IP Illustrated, volume 2, by Gary R. Wright and W. Richard Stevens

[longer_tcz]

OK I have program which sending message from computer A to computer B.
But now I am looking for information about transfer files between computers using raw socket. How can I do that?
I found function sendfile() but I don`t know how use that.
I need example .

How build server FTP on linux, in C language?

[wje_lf]

I found function sendfile() but I don`t know how use that.

Here's the man page.

How build server FTP on linux, in C language?

The best way to learn this is to study the C source code of some examples.

Hope this helps.