[I] have a problem about writing client-server program. I want to write two (using TCP and UDP) different client and server programs which are used to transfer an ascii file. Some different information about this project is that the server will wait for client connection and when the client is connected, it informs the user as “Connection request”. The client program has to ask the name of the file to the user and the name has to be transferred to the server then the server sends the file to the client. If it is necessary, separate the files into small blocks. After the whole file has been transferred, both client and the server have to inform user as “Transfer has completed”. I'm waiting help from you.

This is a bit off for a networking post but try the Code Project (http://www.codeproject.com) web site. Also, another favorite of mine is the Wrox (http://www.wrox.com) web site for code downloads and excellent book titles.