Fix download hash check on big-endian systems

Ensure the hash_file and hash_dir routines give identical results
on big- and little-endian systems.  The default hash routines for
integer types are endian-dependent, so all such hash inputs need
to be byte-swapped.

This applies in particular to the file hashes used as input when
computing directory hashes.

In addition, the default hash routines for composite types use
a length prefix, which it itself an integer type (usize).  In
order to be able to byte-swap that prefix, we have to re-implement
those bits of the standard library ourselves.

0 files changed, 0 insertions, 0 deletions