tree 7a7e5e341f8d98ec6ad9a2580e323206da21e8df
parent 4a19a7b5e62ad2569913d944c84c19f1005c922f
author Ed Tanous <etanous@nvidia.com> 1738690142 -0800
committer Ed Tanous <etanous@nvidia.com> 1738893601 +0000

Implement urlsafe base64 decode

base64 decoding comes in two flavors, "normal" which we already
implement, and "url safe" which modifies the alphabet to create base64
encodings that are safe to use in filenames and urls.  Functionally this
just involves swapping two characters with underscore and minus in the
encode/decode table.  To avoid duplicating a lot of code, this commit
refactors the base64 tables to be generated at compile time.

Tested: Included unit tests pass.  No usage until next commit.

Change-Id: I71724fd2e04000f115c22a40d382d411986d7b39
Signed-off-by: Ed Tanous <etanous@nvidia.com>