Pledge 'n' Play is a paranoid music player/decoder. Decoding of music
files happens in a child process that is locked down using OpenBSD's
pledge system call to limit the system calls it can use.
Malicious audio files are probably not the thing you're most worried about. I'm writing this to get some practice with privilege separation and unit testing. Nevertheless, I hope to make this a (more or less) functional music player some day. So far, it can decode or play back a single file in the FLAC format.
To run, libflac is required. To build the unit tests, the Check framework is required.