Files
android/libwvdrmengine
Alex Dale 04a70543ea Trim trailing zeros from build information.
[ Cherry-pick of http://go/wvgerrit/212250 ]

Certain OEMCrypto implementations are returning build info with
trailing C-string null bytes; others are returning all null bytes.

This change attempts to trim any trailing zeros.  For build info
with a single trailing zero, this should fix the format; for those
containing all zeros, this will indicate a failure on OEMCrypto's part
for returning all zeros.  The CDM will not prevent request generation,
but will omit the result in the ClientIdentification.  The server
will decide whether to provide a response or not.

Bug: 348497732
Bug: 348498112
Bug: 366819137
Change-Id: I281ab14e0e46116825321a7965d971b9d68c49fc
(cherry picked from commit 7c81f7bed4fec8199f7fbdb5e95452eacdf3b3c7)
2025-01-08 11:19:42 -08:00
..
2022-01-27 20:07:15 -08:00
2018-11-22 00:33:30 +00:00
2024-03-18 21:32:04 -07:00

This is the source code for the Widevine Content Decryption Module (CDM) for the
Android OS.  It provides the libwvdrmengine plugin for DRM.

Partners who are integrating a device should be familiar with the documents in
the docs directory.

This source code is NOT open source, and is not part of AOSP.  However, it is
released to partners external to Google after official Android releases.  For
this reason, partners should look for bug fixes and software updates on the
widevine branches:

+------------------------------+------------------------------+
|Android Version               |Branch                        |
+------------------------------+------------------------------+
|Android L                     |lmp-mr1-widevine-release      |
+------------------------------+------------------------------+
|Android M MR1                 |mnc-mr1-widevine-release      |
+------------------------------+------------------------------+
|Android N MR2                 |nyc-mr2-widevine-release      |
+------------------------------+------------------------------+
|Android OC                    |oc-widevine-release           |
+------------------------------+------------------------------+
|Android OC MR1                |oc-mr1-widevine-release       |
+------------------------------+------------------------------+
|Android Pi                    |pi-widevine-release           |
+------------------------------+------------------------------+