[syslinux] COM32: console_ansi_raw() and later segfaults

[H. Peter Anvin]

Gene Cumm wrote:
> 
> Based on the <bits/termios.h> in my system, I think only c_lflag
> should be touched and should also be ORd with ISIG (to allow ^C to
> break out of the program).
> 

Well, you typically want to leave most the flags unchanged.

Note that we have a restorer function which kicks in on exit.  It needs
to also be called on close.

	-hpa