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2005-12-25 Marco Gerards <marco@gnu.org>

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Add support for Apple HFS+ filesystems.

	* fs/hfsplus.c: New file.

	* DISTLIST: Added `fs/hfsplus.c'.

	* conf/common.rmk (pkgdata_MODULES): Add `hfsplus.mod'.
	(hfsplus_mod_SOURCES): New variable.
	(hfsplus_mod_CFLAGS): Likewise.
	(hfsplus_mod_LDFLAGS): Likewise.
	* conf/i386-pc.rmk (grub_setup_SOURCES): Add `fs/hfsplus.c'.
	(grub_setup_SOURCES): Likewise.
	(grub_mkdevicemap_SOURCES): Likewise.
	(grub_emu_SOURCES): Likewise.
	* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Likewise.

	* fs/fshelp.c (grub_fshelp_log2blksize): New function.

	* include/grub/fshelp.h (grub_fshelp_log2blksize): new prototype.
This commit is contained in:
marco_g 2005-12-25 15:59:50 +00:00
parent befaed6ce7
commit 502141992c
12 changed files with 1081 additions and 33 deletions
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24
fs/fshelp.c
View file

@ -1,7 +1,7 @@
/* fshelp.c -- Filesystem helper functions */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2004 Free Software Foundation, Inc.
* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -275,6 +275,7 @@ grub_fshelp_read_file (grub_disk_t disk, grub_fshelp_node_t node,
if (blknr)
{
disk->read_hook = read_hook;
grub_disk_read (disk, blknr, skipfirst,
blockend, buf);
disk->read_hook = 0;
@ -289,3 +290,24 @@ grub_fshelp_read_file (grub_disk_t disk, grub_fshelp_node_t node,
return len;
}
unsigned int
grub_fshelp_log2blksize (unsigned int blksize, unsigned int *pow)
{
int mod;
*pow = 0;
while (blksize > 1)
{
mod = blksize - ((blksize >> 1) << 1);
blksize >>= 1;
/* Check if it really is a power of two. */
if (mod)
return grub_error (GRUB_ERR_BAD_NUMBER,
"the blocksize is not a power of two");
(*pow)++;
}
return GRUB_ERR_NONE;
}