a simple client-server system of remote backup

Develop a simple client-server system of remote backup Client is made of command rcopy Syntax to copy local file “[login to view URL]? to remote server “path?? is rcopy [login to view URL] server:path where server is the name or the IP address of the server file can be accesses via absolute or relative path if in the specified path already exsists a file with the same name, the system must request if the user wants to overwrite it (like option -i of the cp command) command rcopy accept the following parameters: -r: recursive copy of the path specified as first argument (like -r of cp command) -v: print on screen the file names while copying -f: force the overrwrite if the destination file already exsists --exclude=[login to view URL], file2.txt...exclude from the copy the file [login to view URL], file2.txt... The request must run with credentials of the user who runs the server Server must accept multiple connection with thread, and wait for incoming connection on TCP port 1234 File transfer must be on the TCP port 1235 or on the port 1234 On a single system must run multiple client File access must be controlled by a lock system. A single thread at one time can access a file to write, multiple to read System must work both under Linux and Windows Linux server ask to client the authentication of the remote user Linux server executes operation with the credentials of the client user ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Software must be written in C Linux, Windows 2000, 2003, XP Conditional Compilation The project must consist of a single server and a single client wich run both on windows and linux