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Category Archives: Programming

Underhanded C: The Leaky Redaction

So, it turns out I am the winner of the 2008 Underhanded C Contest. The goal of the contest is to write some straightforward C code to solve a simple task, incorrectly. In particular, you had to introduce a hidden security flaw that would stand up to code review and not stand out at all. [...]

Posted 20 November 2009 † john § C § hacks § security ‡ Comments (30) °

newtype in C, a touch of strong typing using compound literals.

The ISO C 99 standard is a great thing. In addition to desperately needed things like a dedicated bool type and codifying a lot of universally implemented extensions to the language, it added some more subtle things such as compound literals. A compound literal allows you to use a C struct or union as an [...]

Posted 17 April 2009 † john § C § Haskell ‡ Comments (2) ° Tagged: , , , ,