Unix problem or C problem?

[Doug Gwyn]

In article <245 at ibd.BRL.MIL> heilpern at brl.arpa (Mark A. Heilpern (IBD) <heilpern>) writes:
>	while (fscanf(input,"%d",stars)!=EOF) {
>		fprintf(stderr,"OK to this point.\n");
>PROTECTION VIOLATION: name='plot', pid=15943, pc=a410cdc, ps=80000180
>	The "OK to this point" message does not appear when put
>	in this position, however it does when placed one line above.

Ahem.  Doesn't that TELL you something?  Like perhaps there is a
problem with the "while (fscanf(input,"%d",stars)!=EOF)"?  In
fact your problem is almost certainly that "stars" is not a pointer
to an integer as required by fscanf().  Perhaps you meant "&stars".