On Sun, Feb 26, 2023 at 12:12:27PM -0800, Andres Freund wrote: > On 2023-02-26 11:39:00 -0800, Nathan Bossart wrote: >> What precisely did you have in mind? AFAICT you are asking for a wrapper >> around write(). > > Partially I just want something that can easily be searched for, that can have > comments attached to it documenting why what it is doing is safe. > > It'd not be a huge amount of work to have a slow and restricted string > interpolation support, to make it easier to write messages. Converting floats > is probably too hard to do safely, and I'm not sure %m can safely be > supported. But basic things like %d would be pretty simple. > > Basically a loop around the format string that directly writes to stderr using > write(), and only supports a signal safe subset of normal format strings.
Got it, thanks. I will try to put something together along these lines, although I don't know if I'll pick up the interpolation support in this thread. -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
