Re: [Bug-gnulib] proposed patch for getpass and unlocked-io

[Paul Eggert]

Bruno Haible <address@hidden> writes:

> I think the fileno is irrelevant here: When you look at the Linux kernel
> source (as an example for general POSIX systems), you see that lseek
> does nothing on ttys (n_tty.c and tty_io.c).

The streams might not be ttys.  Admittedly the utility of non-ttys is
limited here....

>From a purely pedantic point of view, POSIX allows implementations
where ttys have file offsets.  I don't know of any such
implementations, but it's easy to be portable to them here, and it
simplifies the code slightly.