C TAP Harness 3.1

Most of the changes in this release are based on work by Peter Pöschl to make the behavior of the C TAP library more consistent with the Perl Test::More functions. ok, okv, and all the is_* functions now return true if the test succeeds and false if it fails, allowing them to be used in conditionals. diag and sysdiag now always return 1, making it easier to insert (possibly temporary) calls into compound statements while debugging test cases.

The C TAP library now provides a new breallocarray API that does the same thing as brealloc but takes calloc-style arguments and checks internally for integer overflow. Tests for integer overflow during memory allocation have also been added to several other parts of C TAP Harness, including the runtests harness and other internals of the C TAP library. These probably don't matter a tremendous amount for test code, but best to be safe and consistent everywhere possible.

All uses of sprintf have now been replaced with a simpler internal string concatenation function that checks for allocation overflow. The previous usage was probably safe, but this approach is much easier to audit.

You can get the latest release from the C TAP Harness distribution page.