CS 635		ADVANCED SYSTEMS PROGRAMMING		SPRING 2003




	

	       EXERCISE: Writing a '/proc' module


1.	Investigate the 'uname' command:

	(a)  Execute the 'uname' command
	(b)  Read the 'man' page for 'uname'
	(c)  Use the 'uname' command to print your station's nodename


2.	Investigate the kernel's 'system_utsname' variable:

	(a)  Verify that 'system_utsname' is a public kernel-variable
	(b)  Locate the kernel header in which 'system_utsname' is defined
	(c)  Determine how much information is provided by 'system_utsname'


3.	Write a Linux module (named 'uts.c') which creates a pseudo-file
	in the '/proc' directory that can be used to display all of the
	information stored in 'system_utsname' in a format that would be
	understood by a experienced computer science graduate student
	why types the command:

				$ cat /proc/uts 


4.	Report the results of your lab-exercise:

	(a)  Use the bash shell's i/o-redirection capability to print the
	     output from your module's /proc file to an ordinary textfile
	     (named 'uts.out'):

			    $ cat /proc/uts > uts.out

	(b)  Print out a hardcopy of your 'uts.out' file.
	(c)  Write your name(s) on your printout and submit it to the
	     Instructor (Dr. Cruse) or Course Assistant (Mr. Adhikari).


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								27 FEB 2003