No, we are not debating how to hack who will succeed Queen Elizabeth II to the throne here, sorry. What we are referring to is this: How can you correctly specify the name of the successor process; that is, can we programmatically change it to whatever we like?
At first glance, it looks trivial indeed: The second parameter to the execl is the argv[0] argument to pass to the successor; in effect, it appears, its name! So, let's try it out: We write a couple of C programs; the first one, the predecessor (ch9/predcs_name.c) is passed a name parameter from the user. It then execs another program of ours, successor_setnm via the execl passing along the user-supplied name as the first parameter (within the API, ...
