I wrote a new patch: grub_ncurses_getwh + hexcat. hexcat shows the
contents of file like hex editors.

                                                                        
                     Vladimir

2005-08-08 Vladimir Serbinenko <phcoder@gmail.com>
    * commands/hexcat.c: new file
    * conf/i386-pc.rmk (hexcat): new module
    (grub_emu): hexcat added
    * conf/powerpc-ieee1275.rmk: Likewise
    * normal/cmdline.c: include grub/machine/console.h
    (grub_cmdline_get): support for special keys in grub-emu
    * normal/menu.c: include grub/machine/console.h
    (run_menu): support for special keys in grub-emu   
    * util/console.c (grub_ncurses_getwh): New function
    * util/grub-emu.c: call to grub_hexcat_init() and grub_hexcat_fini()