> https://pubs.opengroup.org/onlinepubs/000095399/functions/op...
> The open() function shall return a file descriptor for the named file that is the lowest file descriptor not currently open for that process.
Secondly nothing precludes defining '3' as the lowest file descriptor for open(), since stdin/stdout/stderr cannot be opened (they are opened before the process starts).
nb4 open("/dev/stdin"), that's not what I mean
Secondly nothing precludes defining '3' as the lowest file descriptor for open(), since stdin/stdout/stderr cannot be opened (they are opened before the process starts).
nb4 open("/dev/stdin"), that's not what I mean