Since he's mocking and snarking at each snippet, I think adding pointers to the sources would make it come off as an incitement to make fun of the authors, and

Since he's mocking and snarking at each snippet, I think adding pointers to the sources would make it come off as an incitement to make fun of the authors, and rather more mean than he intended. An alternative would be to add direct citations but tone down the snark. I think Ted wanted to focus on the code examples themselves, and to make an overarching point about how "rand" is actually used in practice. That said, if you want to figure it out, he did say they were "selected examples" from this list of projects: http://marc.info/?l=openbsd-tech&m=141776286105814&w=2 http://marc.info/?l=openbsd-tech&m=141776286105814&w=2 Also, you may be able to google for exact text matches with the code. (You might find other projects that have the exact same problem--but that is likely good enough.)