On Sat, 21 Dec 2019, Steffen Nurpmeso wrote: > I was struggling with a pre-release problem of my mailer, which has an > increasing test coverage, and was head banging on OpenBSD. (And i was > wondering whether i should have Cc:'d Philip Guenther for this exact > problem, but i lost his email address -- Sorry!)
Heh, no problem. > /* There are problems with dup()ing of file-descriptors for child processes. > * We have to somehow accomplish that the FILE* fp makes itself comfortable > * with the *real* offset of the underlaying file descriptor. > * POSIX Issue 7 overloaded fflush(3): if used on a readable stream, then > * > * if the file is not already at EOF, and the file is one capable of > * seeking, the file offset of the underlying open file description shall > * be set to the file position of the stream */ Wheee: do _any_ BSDs implement that? A quick eyeball of Net, Free, and Dragonfly find they all do nothing and return either EBADF (Net, Open) or 0 (Free, Dragonfly), the latter with a citation to SUSv3. Following citiations...I don't actually see when that requirement came in. You have a reference to the austingroup bug for that? Philip
