libXi: Changes to 'master'

[GitLab Mirror]

 src/XGetFCtl.c |   20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

New commits:
commit a5af26c654b4da5fd5eaaeaa2173c734ab9e63ec
Author: Peter Hutterer <peter.hutterer at who-t.net>
Date:   Tue Aug 27 11:01:06 2024 +1000

    XGetFeedbackControl: skip over unknown feedback controls
    
    If the server sends an unknown feedback control class we would allocate
    the amount of *protocol* bytes for the client representation but then
    later mess up the actual composition of the classes due to
    Feedback->length never being initialized.
    
    So while in theory it looks like this:
       |-------------- allocated size -----------------|
       [led feedback] [ ?unknown? ] [kbd feedback][....]
    with unknown being the size of the class on the protocol,
    in practice it looks like this:
       |-------------- allocated size -----------------|
       [led feedback] [ ?unknown?                ] [kbd feedback][...]
    with unknown being the size of whatever was in the Feeback->length
    pointed to at the time. The content of unknown is never initialized.
    
    Fix this by making unknown classes disappear so the above becomes:
       |------- allocated size ---------|
       [led feedback][kbd feedback][....]
    
    Closes #16
    
    Part-of: <https://gitlab.freedesktop.org/xorg/lib/libxi/-/merge_requests/18>