Buffering problems with "gdb < foo"

[Eli Zaretskii]

> dir needs no confirmation if not invoked from tty !

Did you actually look at the from_tty variable's value inside
dir_command?  I don't have the GDB 5.0 binary here, but GDB certainly
*does* ask for confirmation if invoked with stdin and stdout
redirected, at least in the DJGPP version.  Elena, is that a bug?

Anyway, the basic point is still valid, even if this particular
example is not: when stdin is redirected to a file, GDB should turn
editing off.

> I think its because y is not a valid GDB command !

Invalid commands don't cause GDB to exit, they just result in an error
message.  It would be inconceivable to have GDB exit every time I
mistype a command ;-).