lib/ext2fs/ChangeLog

Wed Mar 27 00:33:40 1996    <tytso@rsts-11.mit.edu>

	* Release of E2fsprogs version 1.03

Tue Mar 26 12:06:32 1996    <tytso@rsts-11.mit.edu>

	* bitops.h (ext2fs_set_bit, ext2fs_clear_bit, ext2fs_test_bit):
		Change the m68k bit numbering for bitmasks to match with
		the bit numbering used by all other ext2 implementations.

Thu Mar  7 03:37:00 1996    <tytso@rsts-11.mit.edu>

	* inode.c (ext2fs_get_next_inode, ext2fs_close_inode_scan, 
	ext2fs_open_inode_scan): Support dynamically-sized inodes.

Wed Mar  6 12:26:29 1996    <tytso@rsts-11.mit.edu>

	* inode.c (ext2fs_read_inode, ext2fs_write_inode): Support
		dynamically-sized inodes.

	* openfs.c (ext2fs_open): Allow dynamic revision filesystem to be
	        loaded.

Tue Mar  5 03:49:37 1996    <tytso@rsts-11.mit.edu>

	* initialize.c (ext2fs_initialize): Catch an error condition where
		the passed in size is *really* too small.

	* alloc.c (ext2fs_new_inode): 
	* ext2fs.h (EXT2_FIRST_INODE): Add support for dynamic revision to
		get first inode.

Wed Feb 21 15:56:17 1996    <tytso@rsts-11.mit.edu>

	* getsize.c (ext2fs_get_device_size): Open the device read-only
		when trying to determine its size.

Wed Jan 31 11:06:08 1996    <tytso@rsts-11.mit.edu>

	* Release of E2fsprogs version 1.02

Sat Dec  9 09:57:50 1995    <tytso@rsts-11.mit.edu>

	* rw_bitops.c (ext2fs_write_block_bitmap):
	* bitops.c (ext2fs_test_bit, ext2fs_clear_bit, ext2fs_set_bit):
	* bitops.h (ext2fs_test_bit, ext2fs_clear_bit, ext2fs_set_bit):
		Rename {test,set,clear}_bit to ext2fs_{test,set,clear}_bit, 
		to avoid conflicts with with kernel include files.  Also
		rename ADDR and CONST_ADDR to EXT2FS_ADDR and
		EXT2FS_CONST_ADDR. 

Thu Oct 26 12:09:16 1995    <tytso@rsts-11.mit.edu>

	* ext2_err.et: Updated message in EXT2_ET_BASE to say version 0.5c

	* swapfs.c (ext2fs_swap_super): Put an #ifdef check around
		s_def_resuid and s_def_resgid for backwards compatibility.

Fri Oct 20 23:33:31 1995    <tytso@rsts-11.mit.edu>

	* bitops.h: Added #ifdef's for Sparc.

Wed Sep  6 22:14:46 1995    <tytso@rsts-11.mit.edu>

	* getsize.c: #include <sys/ioctl.h> under Linux to pick up ioctl()
	        declaration

	* closefs.c: #include <string.h> to pick up memset() declaration

Mon Sep  4 21:45:29 1995  Remy Card  <card@bbj>

	* Makefile.in: Added support for BSD shared libraries.

	* initialize.c (ext2fs_initialize): Correctly set the s_creator_os
		flag.

Mon Sep  4 09:55:30 1995    <tytso@rsts-11.mit.edu>

	* unix_io.c (unix_open): Add a double check; if the passed in name
		is NULL, return EXT2_ET_BAD_DEVICE_NAME.

	* ext2_err.et (EXT2_ET_BAD_DEVICE_NAME): Added new error code

Wed Aug 16 15:44:10 1995    <tytso@rsts-11.mit.edu>

	* inode.c (ext2fs_check_directory): Use LINUX_S_ISDIR instead of
		S_ISDIR.

Tue Aug 15 13:08:36 1995    <tytso@rsts-11.mit.edu>

	* getsize.c (ext2fs_get_device_size): Add support for reading the
		partition size from a BSD disk label.

Thu Aug 10 09:33:26 1995  Theodore Y. Ts'o  <tytso@lurch.mit.edu>

	* getsize.c (ext2fs_get_device_size): New function that determins
		the size of a device.  Used by mke2fs and e2fsck.

Sat Aug 12 03:09:54 1995  Remy Card  <card@bbj>

	* Makefile.in (install): Install static libraries in $(ulibdir)
		(/usr/lib on Linux) instead of $(libdir) (/lib on Linux).

Wed Aug  9 17:04:23 1995  Theodore Y. Ts'o  <tytso@dcl>

	* bitmaps.c (ext2fs_free_inode_bitmap, ext2fs_free_block_bitmap):
		Move these functions to freefs.c.

	* closefs.c (ext2fs_flush): If swapping blocks, clear the group
		descriptors shadow memory to keep purify quiet.  (This
		also has the nice benefit that the unused portion of the
		shadow descriptors are zeroed out.)

	* dirblock.c (ext2fs_write_dir_block): We need to use
		dirent->rec_len *before* it's byteswapped to find the
		location of the next directory structure!

	* alloc.c (ext2fs_new_inode): Fix bug which could potentially
		cause ext2fs_new_inode to loop infinitely if we're trying
		to allocate an inode in group #0 and there are no free
		inodes at all in the system.

	* closefs.c: #include <errno.h> if it exists.

Sun Aug  6 13:27:50 1995  Theodore Y. Ts'o  <tytso@lurch.mit.edu>

	* ext2fs.h (BLOCK_FLAG_HOLE): Added new definition for
		BLOCK_FLAG_APPEND.  Added documentation for the block
		interator flags.

Sat Aug  5 11:44:05 1995  Theodore Y. Ts'o  <tytso@lurch.mit.edu>

	* Makefile.in (DLL_INSTALL_DIR, ELF_INSTALL_DIR): Set the
		installation directories correctly.

Tue Jul 18 09:27:38 1995    <tytso@rsx-11.mit.edu>

	* namei.c (process_dir_block): 
	* mkdir.c (ext2fs_mkdir): 
	* expanddir.c (expand_dir_proc): Use ext2fs_{read,write}_dir_block
		to read/write the directory block.

	* dirblock.c (ext2fs_read_dir_block), ext2fs_write_dir_block): New
		file containing functions for reading and writing
		directory blocks (byte swapping if necesssary)

	* block.c (block_iterate_ind, block_iterate_dind, 
		block_iterate_tind): Byte swap the block addresses if
		EXT2_SWAP_BYTES is set (and swap them back before writing
		them out.)

	* inode.c (inocpy_with_swap): New function.
	(ext2fs_get_next_inode, ext2fs_read_inode, ext2fs_write_inode):
		Call inocpy_with_swap if EXT2_SWAP_BYTES if set.

	* closefs.c (ext2fs_flush): If EXT2_SWAP_BYTES is set, then swap
		the superblock and group descriptors before writing it out.

	* openfs.c (ext2fs_open): If the magic number is byte-swapped,
		then set the EXT2_SWAP_BYTES and byte-swap the superblock
		and group descriptors.

	* swapfs.c (ext2fs_swap_super, ext2fs_swap_group_desc): New functions
		to desp ext2 filesystem structures.

	* bitops.c (set_bit, clear_bit, test_bit): Use modifications
		supplied by Pete A. Zaitcev so that the C language
		versions of these functions are more portable.  They will
		now work on both little and big endian systems, and the
		assumption that 32-bit integers are used is gone.

	* bitops.h (ext2_swab16, ext2_swab32): Added new functions for
		doing byte swapping.

	* ext2fs.h (EXT2_SWAP_BYTES): Add new flag which indicates that
		byte swapping should take place.

Sun Jul 16 06:21:43 1995    <tytso@rsx-11.mit.edu>

	* Makefile.in, cmp_bitmaps.c (ext2fs_compare_block_bitmap_end,
	        ext2fs_compare_inode_bitmap_end): Added new file
		containing routines to compare bitmaps.

	* ext2_err.et (EXT2_ET_NEQ_BLOCK_BITMAP, EXT2_ET_NEQ_INODE_BITMAP): 
		Added new error codes.

Sat Jul 15 04:23:37 1995    <tytso@rsx-11.mit.edu>

	* inode.c (ext2fs_get_next_inode): Don't check scan->inode_buffer;
		if the magic number is correct, it will be allocated.

Fri Jul 14 19:02:59 1995    <tytso@rsx-11.mit.edu>

	* block.c (block_iterate_ind, block_iterate_dind, 
		block_iterate_tind): Don't recompute block_nr each loop;
		just increment it!  Factor check of BLOCK_FLAG_APPEND out
		of the loop.  Factor mask of BLOCK_CHANGED into changed
		variable out of the loop.  (block_iterate_ind, in
		particular, gets called a lot, so every little
		optimization helps.)

Thu Jul 13 08:02:45 1995    <tytso@rsx-11.mit.edu>

	* block.c (block_iterate_ind, block_iterate_dind, 
		block_iterate_tind): Precompute limit of loop to speed up
		block_iterate_ind and company.

	* bitops.h (ext2fs_fast_mark_block_bitmap, 
		ext2fs_fast_unmark_block_bitmap, ext2fs_fast_test_block_bitmap,
		ext2fs_fast_mark_inode_bitmap, ext2fs_fast_unmark_inode_bitmap,
		ext2fs_fast_test_inode_bitmap): Add fast version of these
		functions, which don't do range checking.

	* bitops.h (ext2fs_get_block_bitmap_start, 
		ext2fs_get_inode_bitmap_start, ext2fs_get_block_bitmap_end,
		ext2fs_get_inode_bitmap_end): Add new accessor functions
		which return the start and end points of the bitmaps.

Tue Jul 11 18:59:41 1995    <tytso@rsx-11.mit.edu>

	* llseek.c (ext2_llseek): If the offset is small enough, use lseek
		instead of llseek.  The errno if the offset is too large
		and lseek is not supported should be EINVAL, not -EINVAL.

Thu Jun 15 23:43:02 1995  Remy Card  <card@bbj>

	* Makefile.in: Added support for ELF shared libraries.
		Fixed typos in the compilation rules.
		(distclean): Added Makefile.

	* llseek.c (llseek): New function, if llseek() does not exist in the
	C library.
	(ext2_llseek): Changed to call llseek().

Mon Jun 12 08:29:07 1995  Theodore Y. Ts'o  <tytso@lurch.mit.edu>

	* ext2fs.h: Use __u32 to define blk_t, instead of unsigned long.

Sun Jun 11 15:02:54 1995  Theodore Y. Ts'o  <tytso@lurch.mit.edu>

	* mkdir.c (ext2fs_mkdir): Use LINUX_S_IFDIR instead of S_IFDIR.

	* ext2fs.h (LINUX_S_IFDIR): Define a linux specific versions of
		the S_*, which are normally defined in <sys/stat.h>.  This
		allows us to compile e2fsprogs on a non-Linux system,
		which may have a different value for S_IFDIR.

Sat Jun 10 23:47:05 1995  Theodore Y. Ts'o  <tytso@lurch.mit.edu>

	* bitops.c (clear_bit, set_bit): Remove calls to cli() and sti();
		this is a user-mode application!

Thu Jun  8 13:13:22 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

	* llseek.c: Put the include of <linux/unistd.h> inside the #ifdef
	__linux__ so that non-linux systems won't see it.

	* alloc.c: Include <errno.h> if possible.
	* badblocks.c: Ditto.
	* bb_inode.c: Ditto.
	* bitmaps.c: Ditto.
	* block.c: Ditto.
	* expanddir.c: Ditto.
	* get_pathname.c: Ditto.
	* initialize.c: Ditto.
	* inode.c: Ditto.
	* llseek.c: Ditto.
	* mkdir.c: Ditto.
	* namei.c: Ditto.
	* newdir.c: Ditto.
	* openfs.c: Ditto.
	* rw_bitmaps.c: Ditto.
	* unix_io.c: Ditto.

	* Makefile.in: Rewritten to conform to GNU coding standards and
	support separate compilation directories.

Thu May 11 04:13:12 1995    <tytso@rsx-11.mit.edu>

	* initialize.c (ext2fs_initialize): Don't allow more than one
		bitmaps's worth of inodes in a group.

Sat Mar 11 14:07:11 1995  Theodore Y. Ts'o  <tytso@localhost>

	* llseek.c (ext2_llseek): Added error checking to the llseek()
		compat code to protect against overflow.  This only
		applies to 1.0 and early 1.1 kernels, which don't support
		the llseek() system call.

Thu Nov 24 16:29:00 1994  Theodore Y. Ts'o  (tytso@rt-11)

	* unix_io.c (unix_open): Initialize the read_error and write_error
		io_channel pointers to be null.

	* bb_inode.c (clear_bad_block_proc): If an illegal block number is
		found, clear it but don't try to update the filesystem
		accounting information, since that's hopeless anyway.

	* block.c (bloblock_iterate_ind, bloblock_iterate_dind,
	bloblock_iterate_tind): Check to see if the indirect blocks are
		valid before trying to read them.

	* ext2_err.et (EXT2_ET_BAD_IND_BLOCK, EX2_ET_BAD_DIND_BLOCK,
	EXT2_ET_BAD_TIND_BLOCK): Add new error codes.

	* bitops.h (ext2fs_mark_block_bitmap, ext2fs_unmark_block_bitmap,
	ext2fs_test_block_bitmap, ext2fs_mark_inode_bitmap,
	ext2fs_unmark_inode_bitmap, ext2fs_test_inode_bitmap):  If an
		illegal block or inode number is passed in, return instead
		of trying to test, set, or clear the bit.

Mon Nov  7 21:32:33 1994  Remy Card  <card@bbj>

	* Makefile: Added a dummy install target in case shared libraries
		are not built.

Mon Oct 24 14:11:44 1994    (tytso@rsx-11)

	* bitmaps.c (ext2fs_allocate_block_bitmap): Fix calculation of how
		the real last block of the bitmap should be calculated.

Wed Sep  7 10:05:36 1994    (tytso@rsx-11)

	* bitmaps.c (ext2fs_fudge_inode_bitmap_end, 
		ext2fs_fudge_block_bitmap_end, ext2fs_clear_inode_bitmap,
		ext2fs_clear_block_bitmap, ext2fs_free_inode_bitmap,
		ext2fs_free_block_bitmap): Add magic number checking for
		the inode and block bitmaps.

	* bitmaps.c (ext2fs_allocate_block_bitmap): Fix to set the correct
		magic number for a block bitmap instead of an inode bitmap.

	* inode.c (ext2fs_close_inode_scan, ext2fs_get_next_inode):  Add
		magic number checking for the inode_scan structure.

	* badblocks.c (badblocks_list_free, badblocks_list_add, 
		badblocks_list_test, badblocks_list_iterate_begin,
		badblocks_list_iterate, badblocks_list_iterate_end): Add
		magic number checking for the badblocks_list and
		badblocks_iterate structures.

	* ext2_err.et (EXT2_ET_MAGIC_UNIX_IO_CHANNEL): 
	* unix_io.c (unix_open, unix_close, unix_set_blksize, unix_read_blk,
		unix_write_blk, unix_flush): Add magic number checking
		both for io_channel structure and unix_private_data
		structure.

	* openfs.c (ext2fs_open): Add check for io_manager structure's
		magic number.

	* rw_bitmaps.c (ext2fs_write_inode_bitmap, ext2fs_write_block_bitmap,
		ext2fs_read_inode_bitmap, ext2fs_read_block_bitmap,
		ext2fs_read_bitmaps, ext2fs_write_bitmaps): 
	* read_bb.c (ext2fs_read_bb_inode): 
	* read_bb_file.c (ext2fs_read_bb_FILE): 
	* newdir.c (ext2fs_new_dir_block): 
	* namei.c (ext2fs_dir_iterate, ext2fs_lookup, ext2fs_namei): 
	* link.c (ext2fs_link, ext2fs_unlink): 
	* inode.c (ext2fs_open_inode_scan, ext2fs_read_inode,
		ext2fs_write_inode, ext2fs_get_blocks, 
		ext2fs_check_directory): 
	* get_pathname.c (ext2fs_get_pathname): 
	* expanddir.c (ext2fs_expand_dir): 
	* block.c (ext2fs_block_iterate): 
	* bitmaps.c (ext2fs_allocate_inode_bitmap, 
		ext2fs_allocate_block_bitmap): 
	* bb_inode.c (ext2fs_update_bb_inode): 
	* alloc.c (ext2fs_new_inode,ext2fs_new_block,ext2fs_get_free_blocks): 
	* check_desc.c (ext2fs_check_desc): 
	* closefs.c (ext2fs_close, ext2fs_flush): 
	* freefs.c (ext2fs_free): Add check for ext2_filsys magic number.

	* Makefile:
	* ext2fs.h:
	* openfs.c:
	* check_desc.c (ext2fs_check_desc): Move ext2fs_check_desc from
	openfs.c into its own file.

	* ext2fs.h (EXT2_CHECK_MAGIC): Added macro for checking for
	structure magic numbers.

	* closefs.c (ext2fs_flush): Folded in Remy Card's changes to clear
	the EXT2_VALID_FS flag in the backup superblock blocks, so that if
	someone uses the -b option to specify the use of the backup
	superblock --- this usually means that the main superblock is
	toast.  :-)

	* ext2fs.h: 
	* ext2_err.et (EXT2_ET_REV_TOO_HIGH): 
	* openfs.c (ext2fs_open): Folded in Remy Card's changes to add a
	revision level to the superblock.

Sun Aug 21 00:50:08 1994  Theodore Y. Ts'o  (tytso@rt-11)

	* ext2fs.h:
	* bitmaps.c:
	* bitops.c
	* bitops.h:
	* openfs.c:
	* initialize.c: Completely revamped the inode and block bitmap
	structures, so that they can be better chance of being extensible
	in a shared library.  They are now their own type, instead of
	being a char *.  Also, the function signatures of
	ext2fs_test_block_bitmap, ext2fs_mark_block_bitmap,
	ext2fs_unmark_block_bitmap, ext2fs_test_inode_bitmap,
	ext2fs_mark_inode_bitmap, and ext2fs_unmark_inode_bitmap were
	changed to eliminate the ext2_filsys argument, since it is no
	longer necessary.

Wed Aug 17 21:46:44 1994  Remy Card  (card@bbj)

	* unix_io.c (unix_read_blk and unix_write_blk): use the llseek
	system call if available.

	* llseek.c: new file.  This is the stub calling the llseek system
	call which allows supports for 2GB+ file systems.

	* initialize.c (ext2fs_initialize): Ext2fs_initialize now stores
	the creator operating system.

Wed Aug 17 10:03:24 1994  Theodore Y. Ts'o  (tytso@rt-11)

	* initialize.c (ext2fs_initialize): Ext2fs_initialize now sets up
	the group descriptor statistics in addition to everything else.
	This relieves mke2fs of the responsibility of doing it.

	* bitops.c, bitops.h: Add assembly inline functions for the 68000.
	Added a new #define, _EXT2_HAVE_ASM_BITOPS_ to control whether or
	not the generic C function equivalents should be included or not.

	* openfs.c (ext2fs_open): If a superblock is specified, then use
	the backup group descriptors that go along with this superblock,
	instead of using the primary group descriptors.  This allows
	e2fsck to recover filesystems where the primary group descriptors
	have been trashed.