https://stackoverflow.com/questions/5422831/what-is-the-difference-between-using-exit-exit-in-a-conventional-linux-fo
Are every single one of these people incorrect? -Luke On Tue, Oct 27, 2020 at 3:25 PM Philip Guenther <[email protected]> wrote: > On Tue, 27 Oct 2020, Luke Small wrote: > > I have a C program which fork()s and the child process unlink()s > > /etc/installurl, opens /etc/installurl and writes to it. I _exit(0); and > > I've tested it where the parent returns or exit()s and unless I > > specifically call fclose() after the fwrite(), the processes will close > > without actually writing to the file. > > > > Is this correct functionality? It seems like it ought to not need to have > > an fclose() or even an fflush(). > > Yes, it's correct. Call exit(3), not _exit(2) in the child when you want > the functionality of exit(3), such as flushing stdio buffers. > > You should follow up with whatever documentation that suggested you should > call _exit(2) in the child, so that it can be corrected. > > > Philip Guenther >
