Disclaimer

In order to keep the presentation focused, I will frequently take shortcuts:

Not all #includes are shown in C code
Return values frequently not checked in examples
Variables seldom defined
Spacing in output often condensed
Each page is only internally consistant
Uid 1001 may be 'reegen' on one page, and 'taxee' on the next.
Output irrelevant to the discussion at hand frequently removed
Bye-bye parent directory listings
Legitimate bugs occasionally inserted to test the audience
That's my story, and I'm sticking to it.