On 20/06/2022 02.42, Kent Overstreet wrote: > The current test code checks that sprintf never writes past the > terminating nul. This is a rather strange requirement, completely > separate from writing past the end of the buffer, which of course we > can't do And which of course you don't check anymore. So any statement about "all tests passing after these patches" is not worth much. So NAK in this form, but perhaps if/when my year-old patch gets picked up (or you could include it in the series) we can talk about eliminating the check for past-nul-before-end-of-buffer writes. Rasmus