Crypt provides a wrapper around the glibc crypt() function. For the meaning of the arguments, refer to the README.

This function is specific to the tests. It basically checks if we're running with glibc and if the used glibc is new enough

Crypt does currently not provide an implementation for windows and darwin

Crypt provides a wrapper around the glibc crypt_r() function. For the meaning of the arguments, refer to the package README.