chdir in getty

[Ladislav Michl]

Hi,

remember my troubles with mounting MTD while working directory was /dev?
(and btw, mount rewrite works nicely for me). Now I found related
problem and I'd like to ask few questions first.

Getty implementation is as well as util-linux one based on agetty.c -
"another getty program for Linux" which changes dir to /dev in open_tty:

	if (chdir("/dev"))
		error("/dev: chdir() failed: %m");

(Also note %m, which doesn't work in busybox) Now, when you choose some
other login program, like /bin/sh for testing purposes, you end in /dev
as working directory, which is a bit unfortunate. Btw, Linux kernel does
sys_chdir("/root") in do_mount_root. Also chown(tty, 0, 0) and 
chmod(tty, 0622) can be avoided when tty is already connected to std
input/output.

Is there any reason for changing directory to /dev? Any objections to
rewrite it to use absolute path and avoid chdir when working with device
node?

Best regards,
	ladis