Eric Biggers wrote:
> I guess that's fine --- either way users can't rely on the contents of the
> buffer. The man page should use the same wording, though. Should I send a v2
> of both patches?
Please. I just think it's better to put the 'semi-successful' case before the
'really successful'
On Wed, Nov 01, 2017 at 01:57:18PM +, David Howells wrote:
> Eric Biggers wrote:
>
> > - As much of the data as can be fitted into the buffer will be copied to
> > - userspace if the buffer pointer is not NULL.
> > -
> > - On a successful return, the function will always return th
Eric Biggers wrote:
> - As much of the data as can be fitted into the buffer will be copied to
> - userspace if the buffer pointer is not NULL.
> -
> - On a successful return, the function will always return the amount of
> data
> - available rather than the amount copied.
> +
From: Eric Biggers
When keyctl_read() is passed a buffer that is too small, the behavior is
inconsistent. Some key types will fill as much of the buffer as
possible, while others won't copy anything. Moreover, the in-kernel
documentation contradicted the man page on this point.
Update the in-k
