* include/grub/arc/arc.h (grub_arc_iterate_devs_hook_t): New type.
(grub_arc_iterate_devs): Add hook_data argument.
* include/grub/ata.h (grub_ata_dev_iterate_hook_t): New type.
(struct grub_ata_dev.iterate): Add hook_data argument.
* include/grub/device.h (grub_device_iterate_hook_t): New type.
(grub_device_iterate): Add hook_data argument.
* include/grub/disk.h (grub_disk_dev_iterate_hook_t): New type.
(struct grub_disk_dev.iterate): Add hook_data argument.
(grub_disk_dev_iterate): Likewise.
* include/grub/gpt_partition.h (grub_gpt_partition_map_iterate):
Likewise.
* include/grub/msdos_partition.h (grub_partition_msdos_iterate):
Likewise.
* include/grub/partition.h (grub_partition_iterate_hook_t): New
type.
(struct grub_partition_map.iterate): Add hook_data argument.
(grub_partition_iterate): Likewise.
* include/grub/scsi.h (grub_scsi_dev_iterate_hook_t): New type.
(struct grub_scsi_dev.iterate): Add hook_data argument.

Update all callers.

    Migrate to GNU General Public License Version 3.

    * COPYING: Replaced with the plain text version of GPLv3.

    * config.guess: Updated from gnulib.
    * config.sub: Likewise.

    * geninit.sh: Output a GPLv3 copyright notice.
    * geninitheader.sh: Likewise.
    * genmodsrc.sh: Likewise.
    * gensymlist.sh.in: Likewise.

    * boot/i386/pc/boot.S: Upgraded to GPLv3.
    * boot/i386/pc/diskboot.S: Likewise.
    * boot/i386/pc/pxeboot.S: Likewise.
    * commands/blocklist.c: Likewise.
    * commands/boot.c: Likewise.
    * commands/cat.c: Likewise.
    * commands/cmp.c: Likewise.
    * commands/configfile.c: Likewise.
    * commands/echo.c: Likewise.
    * commands/help.c: Likewise.
    * commands/ls.c: Likewise.
    * commands/search.c: Likewise.
    * commands/terminal.c: Likewise.
    * commands/test.c: Likewise.
    * commands/videotest.c: Likewise.
    * commands/i386/cpuid.c: Likewise.
    * commands/i386/pc/halt.c: Likewise.
    * commands/i386/pc/play.c: Likewise.
    * commands/i386/pc/reboot.c: Likewise.
    * commands/i386/pc/vbeinfo.c: Likewise.
    * commands/i386/pc/vbetest.c: Likewise.
    * commands/ieee1275/halt.c: Likewise.
    * commands/ieee1275/reboot.c: Likewise.
    * commands/ieee1275/suspend.c: Likewise.
    * disk/loopback.c: Likewise.
    * disk/lvm.c: Likewise.
    * disk/raid.c: Likewise.
    * disk/efi/efidisk.c: Likewise.
    * disk/i386/pc/biosdisk.c: Likewise.
    * disk/ieee1275/ofdisk.c: Likewise.
    * font/manager.c: Likewise.
    * fs/affs.c: Likewise.
    * fs/ext2.c: Likewise.
    * fs/fat.c: Likewise.
    * fs/fshelp.c: Likewise.
    * fs/hfs.c: Likewise.
    * fs/hfsplus.c: Likewise.
    * fs/iso9660.c: Likewise.
    * fs/jfs.c: Likewise.
    * fs/minix.c: Likewise.
    * fs/sfs.c: Likewise.
    * fs/ufs.c: Likewise.
    * fs/xfs.c: Likewise.
    * hello/hello.c: Likewise.
    * include/grub/acorn_filecore.h: Likewise.
    * include/grub/arg.h: Likewise.
    * include/grub/bitmap.h: Likewise.
    * include/grub/boot.h: Likewise.
    * include/grub/cache.h: Likewise.
    * include/grub/device.h: Likewise.
    * include/grub/disk.h: Likewise.
    * include/grub/dl.h: Likewise.
    * include/grub/elfload.h: Likewise.
    * include/grub/env.h: Likewise.
    * include/grub/err.h: Likewise.
    * include/grub/file.h: Likewise.
    * include/grub/font.h: Likewise.
    * include/grub/fs.h: Likewise.
    * include/grub/fshelp.h: Likewise.
    * include/grub/gzio.h: Likewise.
    * include/grub/hfs.h: Likewise.
    * include/grub/kernel.h: Likewise.
    * include/grub/loader.h: Likewise.
    * include/grub/lvm.h: Likewise.
    * include/grub/misc.h: Likewise.
    * include/grub/mm.h: Likewise.
    * include/grub/net.h: Likewise.
    * include/grub/normal.h: Likewise.
    * include/grub/parser.h: Likewise.
    * include/grub/partition.h: Likewise.
    * include/grub/pc_partition.h: Likewise.
    * include/grub/raid.h: Likewise.
    * include/grub/rescue.h: Likewise.
    * include/grub/script.h: Likewise.
    * include/grub/setjmp.h: Likewise.
    * include/grub/symbol.h: Likewise.
    * include/grub/term.h: Likewise.
    * include/grub/terminfo.h: Likewise.
    * include/grub/tparm.h: Likewise.
    * include/grub/types.h: Likewise.
    * include/grub/video.h: Likewise.
    * include/grub/efi/api.h: Likewise.
    * include/grub/efi/chainloader.h: Likewise.
    * include/grub/efi/console.h: Likewise.
    * include/grub/efi/console_control.h: Likewise.
    * include/grub/efi/disk.h: Likewise.
    * include/grub/efi/efi.h: Likewise.
    * include/grub/efi/pe32.h: Likewise.
    * include/grub/efi/time.h: Likewise.
    * include/grub/i386/linux.h: Likewise.
    * include/grub/i386/setjmp.h: Likewise.
    * include/grub/i386/types.h: Likewise.
    * include/grub/i386/efi/kernel.h: Likewise.
    * include/grub/i386/efi/loader.h: Likewise.
    * include/grub/i386/efi/time.h: Likewise.
    * include/grub/i386/pc/biosdisk.h: Likewise.
    * include/grub/i386/pc/boot.h: Likewise.
    * include/grub/i386/pc/chainloader.h: Likewise.
    * include/grub/i386/pc/console.h: Likewise.
    * include/grub/i386/pc/init.h: Likewise.
    * include/grub/i386/pc/kernel.h: Likewise.
    * include/grub/i386/pc/loader.h: Likewise.
    * include/grub/i386/pc/memory.h: Likewise.
    * include/grub/i386/pc/multiboot.h: Likewise.
    * include/grub/i386/pc/serial.h: Likewise.
    * include/grub/i386/pc/time.h: Likewise.
    * include/grub/i386/pc/vbe.h: Likewise.
    * include/grub/i386/pc/vbeblit.h: Likewise.
    * include/grub/i386/pc/vbefill.h: Likewise.
    * include/grub/i386/pc/vbeutil.h: Likewise.
    * include/grub/i386/pc/vga.h: Likewise.
    * include/grub/ieee1275/ieee1275.h: Likewise.
    * include/grub/ieee1275/ofdisk.h: Likewise.
    * include/grub/powerpc/libgcc.h: Likewise.
    * include/grub/powerpc/setjmp.h: Likewise.
    * include/grub/powerpc/types.h: Likewise.
    * include/grub/powerpc/ieee1275/biosdisk.h: Likewise.
    * include/grub/powerpc/ieee1275/console.h: Likewise.
    * include/grub/powerpc/ieee1275/ieee1275.h: Likewise.
    * include/grub/powerpc/ieee1275/kernel.h: Likewise.
    * include/grub/powerpc/ieee1275/loader.h: Likewise.
    * include/grub/powerpc/ieee1275/multiboot.h: Likewise.
    * include/grub/powerpc/ieee1275/time.h: Likewise.
    * include/grub/powerpc/ieee1275/util/biosdisk.h: Likewise.
    * include/grub/sparc64/libgcc.h: Likewise.
    * include/grub/sparc64/setjmp.h: Likewise.
    * include/grub/sparc64/types.h: Likewise.
    * include/grub/sparc64/ieee1275/console.h: Likewise.
    * include/grub/sparc64/ieee1275/ieee1275.h: Likewise.
    * include/grub/sparc64/ieee1275/kernel.h: Likewise.
    * include/grub/sparc64/ieee1275/time.h: Likewise.
    * include/grub/util/biosdisk.h: Likewise.
    * include/grub/util/getroot.h: Likewise.
    * include/grub/util/lvm.h: Likewise.
    * include/grub/util/misc.h: Likewise.
    * include/grub/util/raid.h: Likewise.
    * include/grub/util/resolve.h: Likewise.
    * io/gzio.c: Likewise.
    * kern/device.c: Likewise.
    * kern/disk.c: Likewise.
    * kern/dl.c: Likewise.
    * kern/elf.c: Likewise.
    * kern/env.c: Likewise.
    * kern/err.c: Likewise.
    * kern/file.c: Likewise.
    * kern/fs.c: Likewise.
    * kern/loader.c: Likewise.
    * kern/main.c: Likewise.
    * kern/misc.c: Likewise.
    * kern/mm.c: Likewise.
    * kern/parser.c: Likewise.
    * kern/partition.c: Likewise.
    * kern/rescue.c: Likewise.
    * kern/term.c: Likewise.
    * kern/efi/efi.c: Likewise.
    * kern/efi/init.c: Likewise.
    * kern/efi/mm.c: Likewise.
    * kern/i386/dl.c: Likewise.
    * kern/i386/efi/init.c: Likewise.
    * kern/i386/efi/startup.S: Likewise.
    * kern/i386/pc/init.c: Likewise.
    * kern/i386/pc/lzo1x.S: Likewise.
    * kern/i386/pc/startup.S: Likewise.
    * kern/ieee1275/ieee1275.c: Likewise.
    * kern/powerpc/cache.S: Likewise.
    * kern/powerpc/dl.c: Likewise.
    * kern/powerpc/ieee1275/cmain.c: Likewise.
    * kern/powerpc/ieee1275/crt0.S: Likewise.
    * kern/powerpc/ieee1275/init.c: Likewise.
    * kern/powerpc/ieee1275/openfw.c: Likewise.
    * kern/sparc64/cache.S: Likewise.
    * kern/sparc64/dl.c: Likewise.
    * kern/sparc64/ieee1275/init.c: Likewise.
    * kern/sparc64/ieee1275/openfw.c: Likewise.
    * loader/efi/chainloader.c: Likewise.
    * loader/efi/chainloader_normal.c: Likewise.
    * loader/i386/efi/linux.c: Likewise.
    * loader/i386/efi/linux_normal.c: Likewise.
    * loader/i386/pc/chainloader.c: Likewise.
    * loader/i386/pc/chainloader_normal.c: Likewise.
    * loader/i386/pc/linux.c: Likewise.
    * loader/i386/pc/linux_normal.c: Likewise.
    * loader/i386/pc/multiboot.c: Likewise.
    * loader/i386/pc/multiboot_normal.c: Likewise.
    * loader/powerpc/ieee1275/linux.c: Likewise.
    * loader/powerpc/ieee1275/linux_normal.c: Likewise.
    * normal/arg.c: Likewise.
    * normal/cmdline.c: Likewise.
    * normal/command.c: Likewise.
    * normal/completion.c: Likewise.
    * normal/execute.c: Likewise.
    * normal/function.c: Likewise.
    * normal/lexer.c: Likewise.
    * normal/main.c: Likewise.
    * normal/menu.c: Likewise.
    * normal/menu_entry.c: Likewise.
    * normal/misc.c: Likewise.
    * normal/parser.y: Likewise.
    * normal/script.c: Likewise.
    * normal/i386/setjmp.S: Likewise.
    * normal/powerpc/setjmp.S: Likewise.
    * normal/sparc64/setjmp.S: Likewise.
    * partmap/acorn.c: Likewise.
    * partmap/amiga.c: Likewise.
    * partmap/apple.c: Likewise.
    * partmap/gpt.c: Likewise.
    * partmap/pc.c: Likewise.
    * partmap/sun.c: Likewise.
    * term/gfxterm.c: Likewise.
    * term/terminfo.c: Likewise.
    * term/efi/console.c: Likewise.
    * term/i386/pc/console.c: Likewise.
    * term/i386/pc/serial.c: Likewise.
    * term/i386/pc/vesafb.c: Likewise.
    * term/i386/pc/vga.c: Likewise.
    * term/ieee1275/ofconsole.c: Likewise.
    * util/biosdisk.c: Likewise.
    * util/console.c: Likewise.
    * util/genmoddep.c: Likewise.
    * util/getroot.c: Likewise.
    * util/grub-emu.c: Likewise.
    * util/grub-mkdevicemap.c: Likewise.
    * util/grub-probe.c: Likewise.
    * util/lvm.c: Likewise.
    * util/misc.c: Likewise.
    * util/raid.c: Likewise.
    * util/resolve.c: Likewise.
    * util/update-grub.in: Likewise.
    * util/update-grub_lib.in: Likewise.
    * util/grub.d/00_header.in: Likewise.
    * util/grub.d/10_hurd.in: Likewise.
    * util/grub.d/10_linux.in: Likewise.
    * util/i386/efi/grub-install.in: Likewise.
    * util/i386/efi/grub-mkimage.c: Likewise.
    * util/i386/pc/grub-install.in: Likewise.
    * util/i386/pc/grub-mkimage.c: Likewise.
    * util/i386/pc/grub-mkrescue.in: Likewise.
    * util/i386/pc/grub-setup.c: Likewise.
    * util/i386/pc/misc.c: Likewise.
    * util/powerpc/ieee1275/grub-install.in: Likewise.
    * util/powerpc/ieee1275/grub-mkimage.c: Likewise.
    * util/powerpc/ieee1275/misc.c: Likewise.
    * video/bitmap.c: Likewise.
    * video/video.c: Likewise.
    * video/i386/pc/vbe.c: Likewise.
    * video/i386/pc/vbeblit.c: Likewise.
    * video/i386/pc/vbefill.c: Likewise.
    * video/i386/pc/vbeutil.c: Likewise.
    * video/readers/tga.c: Likewise.

        * partmap/pc.c (pc_partition_map_iterate): Include the value of an
        invalid magic in thre error.

        * commands/search.c: New file.

        * util/grub-emu.c (main): Call grub_search_init and
        grub_search_fini.

        * kern/rescue.c (grub_rescue_print_disks): Removed.
        (grub_rescue_print_devices): New function.
        (grub_rescue_cmd_ls): Use grub_device_iterate with
        grub_rescue_print_devices instead of grub_disk_dev_iterate with
        grub_rescue_print_disks.

        * kern/partition.c (grub_partition_iterate): Return the result of
        PARTMAP->ITERATE instead of GRUB_ERRNO.

        * kern/device.c: Include grub/partition.h.
        (grub_device_iterate): New function.

        * include/grub/partition.h (grub_partition_iterate): Return int
        instead of grub_err_t.

        * include/grub/normal.h [GRUB_UTIL] (grub_search_init): New
        prototype.
        [GRUB_UTIL] (grub_search_fini): Likewise.

        * include/grub/device.h (grub_device_iterate): New prototype.

        * conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Added
        commands/search.c.
        (pkgdata_MODULES): Added search.mod.
        (search_mod_SOURCES): New variable.
        (search_mod_CFLAGS): Likewise.

        * conf/i386-pc.rmk (grub_emu_SOURCES): Added commands/search.c.
        (pkgdata_MODULES): Added search.mod.
        (search_mod_SOURCES): New variable.
        (search_mod_CFLAGS): Likewise.

        * commands/ls.c (grub_ls_list_disks): Renamed to ...
        (grub_ls_list_devices): ... this, and use grub_device_iterate.
        All callers changed.

        * DISTLIST: Added commands/search.c.

	Change the semantics of variable hooks. They now return	strings
	instead of error values.

	* util/i386/pc/grub-setup.c: Include grub/env.h.
	(setup): Use grub_device_set_root instead of grub_env_set.

	* kern/rescue.c (grub_rescue_cmd_root): Use grub_env_set and
	grub_env_get instead of grub_device_set_root and
	grub_device_get_root, respectively.

	* kern/main.c (grub_env_write_root): New function.
	(grub_set_root_dev): Register grub_env_write_hook for "root". Use
	grub_env_set instead of grub_device_set_root.

	* kern/env.c (HASHSZ): Reduced to 13, because GRUB does not need
	many variables.
	(grub_env_set): Set ENV->VALUE to the result of ENV->WRITE_HOOK
	rather than calling ENV->WRITE_HOOK afterwards.
	(grub_env_get): Return the result of ENV->READ_HOOK rather than
	passing a pointer of a pointer.
	(grub_register_variable_hook): Change the types of "read_hook" and
	"write_hook" to grub_env_read_hook_t and grub_env_write_hook_t,
	respectively.
	Allocate the default empty string on the heap, because this string
	may be freed later.

	* kern/device.c: Include grub/env.h.
	(grub_device_set_root): Removed.
	(grub_device_get_root): Likewise.
	(grub_device_open): Use grub_env_get instead of
	grub_device_get_root.

	* include/grub/env.h (grub_env_read_hook_t): New type.
	(grub_env_write_hook_t): Likewise.
	(grub_env_var): Change the types of "read_hook" and "write_hook"
	to grub_env_read_hook_t and grub_env_write_hook_t, respectively.
	(grub_register_variable_hook): Likewise.

	* include/grub/device.h (grub_device_set_root): Removed.
	(grub_device_set_root): Likewise.

	* fs/fat.c (grub_fat_dir): Make a copy of PATH in DIRNAME, and
	make sure that DIRNAME terminates with '/', so that
	grub_fat_find_dir will fail if PATH is not a directory.

	* commands/ls.c (grub_ls_list_files): Remove the qualifier const
	from DIRNAME.
	Use the qualifier auto for print_files and print_files_long.
	If FS->DIR sets GRUB_ERRNO to GRUB_ERR_BAD_FILE_TYPE, try DIRNAME
	as a regular file.
	Put a newline only if there is no error.
	(grub_cmd_ls): Remove grub_ls_print_files, because this is not
	used.

	All symbols prefixed with PUPA_ and pupa_ are renamed to GRUB_
	and grub_, respectively. Because the conversion is trivial and
	mechanical, I omit the details here. Please refer to the CVS
	if you need more information.

	* genkernsyms.sh: Updated copyright information.
	* genmk.rb: Likewise.
	* genmodsrc.sh: Likewise.
	* gensymlist.sh: Likewise.
	* boot/i386/pc/boot.S: Likewise.
	* boot/i386/pc/diskboot.S: Likewise.
	* disk/i386/pc/biosdisk.c: Likewise.
	* disk/i386/pc/partition.c: Likewise.
	* font/manager.c: Likewise.
	* fs/ext2.c: Likewise.
	* fs/fat.c: Likewise.
	* include/pupa/boot.h: Likewise.
	* include/pupa/device.h: Likewise.
	* include/pupa/disk.h: Likewise.
	* include/pupa/dl.h: Likewise.
	* include/pupa/elf.h: Likewise.
	* include/pupa/err.h: Likewise.
	* include/pupa/file.h: Likewise.
	* include/pupa/font.h: Likewise.
	* include/pupa/fs.h: Likewise.
	* include/pupa/kernel.h: Likewise.
	* include/pupa/loader.h: Likewise.
	* include/pupa/misc.h: Likewise.
	* include/pupa/mm.h: Likewise.
	* include/pupa/net.h: Likewise.
	* include/pupa/normal.h: Likewise.
	* include/pupa/rescue.h: Likewise.
	* include/pupa/setjmp.h: Likewise.
	* include/pupa/symbol.h: Likewise.
	* include/pupa/term.h: Likewise.
	* include/pupa/types.h: Likewise.
	* include/pupa/i386/setjmp.h: Likewise.
	* include/pupa/i386/types.h: Likewise.
	* include/pupa/i386/pc/biosdisk.h: Likewise.
	* include/pupa/i386/pc/boot.h: Likewise.
	* include/pupa/i386/pc/console.h: Likewise.
	* include/pupa/i386/pc/init.h: Likewise.
	* include/pupa/i386/pc/kernel.h: Likewise.
	* include/pupa/i386/pc/linux.h: Likewise.
	* include/pupa/i386/pc/loader.h: Likewise.
	* include/pupa/i386/pc/memory.h: Likewise.
	* include/pupa/i386/pc/multiboot.h: Likewise.
	* include/pupa/i386/pc/partition.h: Likewise.
	* include/pupa/i386/pc/time.h: Likewise.
	* include/pupa/i386/pc/vga.h: Likewise.
	* include/pupa/i386/pc/util/biosdisk.h: Likewise.
	* include/pupa/util/getroot.h: Likewise.
	* include/pupa/util/misc.h: Likewise.
	* include/pupa/util/resolve.h: Likewise.
	* kern/device.c: Likewise.
	* kern/disk.c: Likewise.
	* kern/dl.c: Likewise.
	* kern/err.c: Likewise.
	* kern/file.c: Likewise.
	* kern/fs.c: Likewise.
	* kern/loader.c: Likewise.
	* kern/main.c: Likewise.
	* kern/misc.c: Likewise.
	* kern/mm.c: Likewise.
	* kern/rescue.c: Likewise.
	* kern/term.c: Likewise.
	* kern/i386/dl.c: Likewise.
	* kern/i386/pc/init.c: Likewise.
	* kern/i386/pc/lzo1x.S: Likewise.
	* kern/i386/pc/startup.S: Likewise.
	* loader/i386/pc/chainloader.c: Likewise.
	* loader/i386/pc/linux.c: Likewise.
	* loader/i386/pc/multiboot.c: Likewise.
	* normal/cmdline.c: Likewise.
	* normal/command.c: Likewise.
	* normal/main.c: Likewise.
	* normal/menu.c: Likewise.
	* normal/i386/setjmp.S: Likewise.
	* term/i386/pc/console.c: Likewise.
	* term/i386/pc/vga.c: Likewise.
	* util/console.c: Likewise.
	* util/genmoddep.c: Likewise.
	* util/misc.c: Likewise.
	* util/pupa-emu.c: Likewise.
	* util/resolve.c: Likewise.
	* util/unifont2pff.rb: Likewise.
	* util/i386/pc/biosdisk.c: Likewise.
	* util/i386/pc/getroot.c: Likewise.
	* util/i386/pc/pupa-mkimage.c: Likewise.
	* util/i386/pc/pupa-setup.c: Likewise.