Fix `buffer.transcode()` for transcoding from single-byte character
encodings to UCS2.
These would previously perform out-of-bounds reads due to an
incorrect `sizeof()` expression.
Fixes: https://github.com/nodejs/node/issues/9834
PR-URL: https://github.com/nodejs/node/pull/9838
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Add buffer.transcode(source, from, to) method. Primarily uses ICU
to transcode a buffer's content from one of Node.js' supported
encodings to another.
Originally part of a proposal to add a new unicode module. Decided
to refactor the approach towrds individual PRs without a new module.
Refs: https://github.com/nodejs/node/pull/8075
PR-URL: https://github.com/nodejs/node/pull/9038
Reviewed-By: Anna Henningsen <anna@addaleax.net>
