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Part 1: Implementing Your Own Rusers Command

In this part you will implement your own rusers command. There already exists an rusers command in Solaris that gives you information about the users in remote hosts. This command is a client program that communicates to a special rusers server running always in the background on Solaris machines. Rusers' client and server use RPC's and follow the RPC description available in /usr/include/rpcsvc/rusers.x.

In this part of the project you should write a simplified version of the client rusers program that will be called myrusers. Your myrusers program has the following syntax:

          myrusers host

It prints a similar output to the one you obtain by typing ``rusers -l host''. We suggest you not to use rpcgen to code your program. You have to build the xdr filters by hand. In this way you will see the advantages of using rpcgen in the second part of the project. You still can use rpcgen to compare your code and the automatically generated program.

In /u/u3/603/96spring/SUNWabsdk-ps/ps/NETP/ you can find postsript documentation on the SUN-RPC interface and rpcgen. I strongly recommend you to read chapters 01 to 04. They give you a very good introduction to Sun-RPC. Use ghostview to read the documentation and don't use the printers unnecessarily.

Part1 is due on Tuesday March 12 before 5:00pm in my office (CS-274). You just have to submit a printout of the sources of your program and the output of running ``myrusers ector''.



Gustavo Rodriguez-Rivera
Fri Mar 1 17:46:06 EST 1996