On 10.08.21 08:02:17, Joe Perches wrote:

On Tue, 2021-08-10 at 16:36 +0200, Robert Richter wrote:

quoted

On 09.08.21 10:18:58, Joe Perches wrote:

quoted

strscpy and scnprintf have different return values and it's simpler
and much more common to use scnprintf for appended strings that are
limited to a specific buffer length.

Calculating the bytes written from the return value is a oneliner.

Not really.
You still have to test for strscpy's possible return of -E2BIG.

I thought of:

	num = strscpy(p, OTHER_LABEL, len);
	num = num < 0 ? len : num;
	len -= num;
	p += num;

Clearly, this does not look nice, esp. if this is repeated in the
code. That's why I prefer the strlen(p) implementation:

	strscpy(p, OTHER_LABEL, len);
	len -= strlen(p);
	p += strlen(p);

-Robert