Re: [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms
From: Andrew Morton
Date: Tue Jul 23 2019 - 00:35:30 EST
On Mon, 22 Jul 2019 17:38:15 -0700 Joe Perches <joe@xxxxxxxxxxx> wrote:
> Several uses of strlcpy and strscpy have had defects because the
> last argument of each function is misused or typoed.
> Add macro mechanisms to avoid this defect.
> stracpy (copy a string to a string array) must have a string
> array as the first argument (to) and uses sizeof(to) as the
> These mechanisms verify that the to argument is an array of
> char or other compatible types like u8 or unsigned char.
> A BUILD_BUG is emitted when the type of to is not compatible.
It would be nice to include some conversions. To demonstrate the need,
to test the code, etc.