ChangeLog

2025-09-16  Eric Herman  <eric@freesa.org>

	extract the string checking function to check-util

	* Makefile: support check-util
	* tests/check-util.c: implement null-safe check_str
	* tests/check-util.h: null-safe Check_str macro
	* tests/test-check-util.c: testing check-util itself
	* tests/test-uuid5-generate.c: use Check_str
	* tests/test-uuid5.c: use Check_str

2025-09-11  Eric Herman  <eric@freesa.org>

	Makefile: add check-has-sudo before calling scripts which require sudo
	and add targets "debug", "check-build-unit", and "coverage-report".

	Honour the order of argumetns to calloc:
		calloc(number_of_elements, size_of_element);

	uuid5: add ability to be strict (UUID) or lax (char *) with namespaces

	* Makefile: targets: check-has-sudo, coverage-report; tidy:CHAR64LONG16
			and support unit tests
	* src/allocate.c: calloc
	* src/ext4_utils.c: calloc
	* src/extent.c: calloc
	* src/indirect.c: calloc
	* src/libsparse/backed_block.c: calloc
	* src/libsparse/output_file.c: calloc
	* src/libsparse/sparse.c: calloc
	* src/libsparse/sparse_read.c: calloc
	* src/make_ext4fs.c: calloc
	* src/sha1.c: white-space tidy, CHAR64LONG16 is a type
	* src/uuid5.c: add ability to be strict or lax with namespaces
	* src/uuid5.h: add ability to be strict or lax with namespaces
	* tests/build-and-test.sh: support coverage target
	* tests/test-uuid5-generate.c: new file, first unit test!
	* tests/test-uuid5.c: new file, unit test
	* README.md: code coverage moved from Roadmap to Noteworthy changes
	* .gitignore: add default ./build dir

2025-09-10  Eric Herman  <eric@freesa.org>

	Freeing backing buffers of sparse files are the responsibility of
	the caller. As such, a reference must be held in order to free them.

	Add linked list structure for tracking pointers and their sizes.

	Makefile simplification: no sense in having the sparse object files in
	their own directory as we are not treating it like a sub-module.
	Include consistency: use double quotes, not angle-brackets for sparse.

	* src/allocate.c: add vps_list_add(), vps_list_free()
	* src/allocate.h: add struct vps_list, vps_list_add(), vps_list_free()
	* src/contents.c: long_life_bufs param added to functions
	* src/contents.h: long_life_bufs param added to functions
	* src/ext4_utils.c: ext4_queue_sb(): backing buf added to long_life_bufs
	* src/ext4_utils.h: long_life_bufs param added to functions
	* src/extent.c: extent_create_backing() backing buf added to long_lifes
	* src/extent.h: long_life_bufs param added to functions
	* src/indirect.c: inode_attach_resize() add block_data to long_life_bufs
	* src/indirect.h: long_life_bufs param added to functions
	* src/libsparse/output_file.h: include consistency
	* src/libsparse/sparse.c: include consistency
	* src/libsparse/sparse_err.c: include consistency
	* src/libsparse/sparse_read.c: include consistency
	* src/make_ext4fs.c: add vps_list long_life_bufs
	* README.md: Roadmap: remove "add valgrind" (done)
	* misc/workaround-indent-bug-65165.patch: update
	* Makefile: single list of .o files

2025-09-08  Eric Herman  <eric@freesa.org>

	Elevate leak visibility with Valgrind

	* src/allocate.c: add free_alloc_all, free the strdup-ed filename
	* src/allocate.h: add free_alloc_all
	* src/contents.c: adjust the saved_allocation_head from the caller
	* src/contents.h: pass in reference to pointer
	* src/ext4_utils.h: make_ext4fs_internal() reduce param list
	* src/libsparse/output_file.c: output_file_close now frees its buffers
	* src/make_ext4fs.c: fix leaks, _internal() now creates and frees more
	* src/make_ext4fs_main.c: make_ext4fs_internal() reduce param list
	* Makefile: CFLAGS add -g -Wall -Wextra
	* tests/build-and-test.sh: use valgrind if available

2024-08-06  Eric Herman  <eric@freesa.org>

	Guard against some malloc()/calloc() failures
	Add a "make tidy" target based upon Linux kernel coding
	https://github.com/torvalds/linux/blob/master/scripts/Lindent

	* Makefile: add "tidy" target using "Lindent"
	* misc/workaround-indent-bug-65165.patch: add indent patch
	* src/allocate.c: error if malloc() returns NULL
	* src/allocate.h: add jmp_buf to functions
	* src/ext4_utils.c: error if malloc() returns NULL
	* src/ext4_utils.h: add jmp_buf to functions
	* src/extent.c: error if malloc() returns NULL
	* src/indirect.c: error if malloc() returns NULL
	* src/make_ext4fs.c: error if malloc() returns NULL
	* src/libsparse/backed_block.c: early return NULL, if malloc() fails
	* src/canned_fs_config.c
	* src/canned_fs_config.h
	* src/contents.c
	* src/crc16.c
	* src/ext4.h
	* src/ext4_extents.h
	* src/ext4_sb.c
	* src/ext4_sb.h
	* src/ext4fixup.c
	* src/extent.h
	* src/include/private/android_filesystem_capability.h
	* src/jbd2.h
	* src/libsparse/backed_block.h
	* src/libsparse/include/sparse/sparse.h
	* src/libsparse/output_file.c
	* src/libsparse/output_file.h
	* src/libsparse/sparse.c
	* src/libsparse/sparse_crc32.c
	* src/libsparse/sparse_crc32.h
	* src/libsparse/sparse_file.h
	* src/libsparse/sparse_format.h
	* src/libsparse/sparse_read.c
	* src/make_ext4fs_main.c
	* src/sha1.c
	* src/sha1.h
	* src/wipe.c
	* src/wipe.h
	* src/xattr.h
	* README.md: Roadmap: add memory leak checking

2024-08-05  Eric Herman  <eric@freesa.org>

	Replace globals with stack variables.
	Add a README.md
	split NOTICE into NOTICE and LICENSE
	remove MODULE_LICENSE_APACHE2 (empty marker file from AOSP tooling)

	* README.md: added
	* NOTICE: split into NOTICE and LICENSE
	* LICENSE: Just the text of Apache v2.0 (copyright Apache, not the AOSP)
	* MODULE_LICENSE_APACHE2: deleted

	* src/ext4_utils.c: removed globals: force, info, aux_info,
				ext4_sparse_file, uuid_user_specified,
				setjmp_env

	* src/canned_fs_config.c: removed globals: canned_data, canned_alloc,
					canned_used

	* src/contents.c: removed global: saved_allocation_head

	* src/ext4fixup.c: removed globals: verbose, no_write,
				no_write_fixup_state, new_inodes_per_group

	* src/libsparse/sparse_read.c: removed global: copybuf,
					fixed memory leak (free(buf) missing)

	* src/make_ext4fs_main.c: (most) former globals now created here

	* src/allocate.h
	* src/canned_fs_config.h
	* src/contents.h
	* src/ext4fixup.h
	* src/ext4_utils.h
	* src/extent.h
	* src/indirect.h
	* src/libsparse/include/sparse/sparse.h

	* src/allocate.c
	* src/extent.c
	* src/indirect.c
	* src/make_ext4fs.c

2024-08-04  Eric Herman  <eric@freesa.org>

	move libsparse and android_filesystem_capability.h into src/
	make sparse includes quotes (not brackets)

	* Makefile: includes, file moves
	* src/allocate.c: includes
	* src/ext4fixup.c: includes
	* src/ext4_utils.c: includes
	* src/make_ext4fs_main.c: includes
	* src/include/private/android_filesystem_capability.h: moved
	* src/libsparse/backed_block.c: moved
	* src/libsparse/backed_block.h: moved
	* src/libsparse/defs.h: moved
	* src/libsparse/include/sparse/sparse.h: moved
	* src/libsparse/output_file.c: moved
	* src/libsparse/output_file.h: moved
	* src/libsparse/sparse.c: moved
	* src/libsparse/sparse_crc32.c: moved
	* src/libsparse/sparse_crc32.h: moved
	* src/libsparse/sparse_defs.h: moved
	* src/libsparse/sparse_err.c: moved
	* src/libsparse/sparse_file.h: moved
	* src/libsparse/sparse_format.h: moved
	* src/libsparse/sparse_read.c:moved
	* libsparse/Makefile: deleted

2024-07-25  Eric Herman  <eric@freesa.org>

	added licenses to makefiles
	moved top-level source files to src/
	moved top-level test file to tests/
	default the build/ directory

	* Makefile: add license, BUILD_DIR ?= ./build
	* libsparse/Makefile: add license, BUILD_DIR ?= ../build
	* build-and-test.sh: move to tests/ add license comment
	* ChangeLog: added
	* .gitignore: updated
	* allocate.c: moved to src/allocate.c
	* allocate.h: moved to src/allocate.h
	* canned_fs_config.c: moved to src/canned_fs_config.c
	* canned_fs_config.h: moved to src/canned_fs_config.h
	* contents.c: moved to src/contents.c
	* contents.h: moved to src/contents.h
	* crc16.c: moved to src/crc16.c
	* ext4.h: moved to src/ext4.h
	* ext4_extents.h: moved to src/ext4_extents.h
	* ext4_kernel_headers.h: moved to src/ext4_kernel_headers.h
	* ext4_sb.c: moved to src/ext4_sb.c
	* ext4_sb.h: moved to src/ext4_sb.h
	* ext4_utils.c: moved to src/ext4_utils.c
	* ext4_utils.h: moved to src/ext4_utils.h
	* ext4fixup.c: moved to src/ext4fixup.c
	* ext4fixup.h: moved to src/ext4fixup.h
	* extent.c: moved to src/extent.c
	* extent.h: moved to src/extent.h
	* indirect.c: moved to src/indirect.c
	* indirect.h: moved to src/indirect.h
	* jbd2.h: moved to src/jbd2.h
	* make_ext4fs.c: moved to src/make_ext4fs.c
	* make_ext4fs_main.c: moved to src/make_ext4fs_main.c
	* sha1.c: moved to src/sha1.c
	* sha1.h: moved to src/sha1.h
	* uuid5.c: moved to src/uuid5.c
	* uuid5.h: moved to src/uuid5.h
	* wipe.c: moved to src/wipe.c
	* wipe.h: moved to src/wipe.h
	* xattr.h: moved to src/xattr.h

2024-07-20  Eric Herman  <eric@freesa.org>

	Align uuid v5 generation with rfc9562
	support using a file (in addition to device) for target
	move file truncation until after file size check
	support BUILD_DIR
	fix declare-but-not-used warnings
	add a .gitignore
	Makefile: add "check" target
	rename uuid.h,uuid.c to uuid5.h, uuid5.c

	* make_ext4fs_main.c: remove file truncation on open
	* make_ext4fs.c: file truncation after getting file size
	* build-and-test.sh: support BUILD_DIR, file or device
	* Makefile: add a "check" for both file/device, BUILD_DIR, whitespace
	* libsparse/Makefile: BUILD_DIR
	* canned_fs_config.c: fix unused warning
	* make_ext4fs.c: fix unused warning
	* uuid.h: rename to uuid5.h
	* uuid.c: Align with rfc9562, rename to uuid5.c
	* build-and-test.sh: called from "make check"
	* .gitignore: added

2024-05-06  Eric Herman  <eric@freesa.org>

	make_ext4fs: add command-line -u option for UUID

	* ext4_utils.h: parsing functions
	* make_ext4fs_main.c: commandline parsing
	* ext4_sb.c:
	* make_ext4fs.c
	* ext4_sb.h
	* ext4_utils.c

2020-01-05  Hauke Mehrtens  <hauke@hauke-m.de>

	Add LDFLAGS when building libsparse.a

	* Makefile

2019-12-06  Johannes Kimmel  <freifunk@mail.bareminimum.eu>

	make_ext4fs: fix build on musl systems

	* ext4_utils.h

2017-05-20  Rosen Penev  <rosenp@gmail.com>

	make_ext4: Add strict prototypes.

	* contents.h
	* extent.h
	* indirect.h
	* allocate.h
	* make_ext4fs.c
	* contents.c

2017-04-08  Rosen Penev  <rosenp@gmail.com>

	make_ext4fs: Remove off64_t in favor of standard off_t

	* ext4_utils.h
	* ext4_utils.c
	* libsparse/sparse_read.c
	* ext4fixup.c
	* libsparse/output_file.c
	* extent.c

2016-08-14  Jo-Philipp Wich  <jo@mein.io>

	Allow creating empty filesystem images

	* make_ext4fs.c

2016-05-05  Felix Fietkau  <nbd@nbd.name>

	Only include sys/sysmacros.h on glibc, it is not portable

	* ext4_utils.h

2016-04-25  Jo-Philipp Wich  <jo@mein.io>

	Include sys/sysmacros.h explicitely.

	* ext4_utils.h

2015-12-02  Wojtek Porczyk  <woju@invisiblethingslab.com>

	make_ext4fs: explicitly call setlocale() before creating image

	* make_ext4fs.c

2015-09-14  Jo-Philipp Wich  <jow@openwrt.org>

	Add option to link zlib statically

	* Makefile

2015-04-29  Imre Kaloz  <kaloz@openwrt.org>

	avoid using libc's internal sys/cdefs.h

	* sha1.c
	* sha1.h

2015-04-08  Jo-Philipp Wich  <jow@openwrt.org>

	Allow specifying reserved blocks percentage
	Remove MinGW support code
	Remove unused functions
	Remove unused mountpoint support

	* contents.c
	* ext4_sb.h
	* ext4_utils.c
	* ext4_utils.h
	* ext4fixup.c
	* libsparse/output_file.c
	* libsparse/sparse_read.c
	* make_ext4fs.c
	* make_ext4fs.h
	* make_ext4fs_main.c
	* sha1.c
	* sha1.h
	* uuid.c

2015-04-04  Jo-Philipp Wich  <jow@openwrt.org>

	Implement support for block and char dev nodes, fifos and sockets.
	Add required Android includes
	Fix fs configuration support
	Support comments in fs config
	Support tabs as seaprators when parsing fs config
	Add toplevel Makefile
	libsparse: add Makefile
	Remove Android specific code paths
	Remove selinux code
	Remove references to O_BINARY
	Remove unused files

	* Android.mk
	* Makefile
	* canned_fs_config.c
	* canned_fs_config.h
	* contents.c
	* contents.h
	* e4crypt_static.c
	* ext2simg.c
	* ext4_crypt.cpp
	* ext4_crypt.h
	* ext4_crypt_init_extensions.cpp
	* ext4_utils.h
	* ext4fixup_main.c
	* include/private/android_filesystem_capability.h
	* include/private/android_filesystem_config.h
	* libsparse/Android.mk
	* libsparse/Makefile
	* libsparse/append2simg.c
	* libsparse/img2simg.c
	* libsparse/output_file.c
	* libsparse/simg2img.c
	* libsparse/simg2simg.c
	* libsparse/simg_dump.py
	* make_ext4fs.c
	* make_ext4fs.h
	* make_ext4fs_main.c
	* mkuserimg.sh
	* setup_fs.c
	* test_ext4fixup
	* unencrypted_properties.cpp
	* unencrypted_properties.h

2015-04-04  Jo-Philipp Wich  <jow@openwrt.org>

	Import libsparse sources

	* libsparse/simg2img.c
	* libsparse/simg_dump.py
	* libsparse/defs.h
	* libsparse/backed_block.c
	* libsparse/Android.mk
	* libsparse/img2simg.c
	* libsparse/sparse_err.c
	* libsparse/sparse_crc32.h
	* libsparse/output_file.h
	* libsparse/sparse_format.h
	* libsparse/backed_block.h
	* libsparse/sparse_file.h
	* libsparse/sparse_read.c
	* libsparse/simg2simg.c
	* libsparse/append2simg.c
	* libsparse/sparse_defs.h
	* libsparse/sparse_crc32.c
	* libsparse/sparse.c
	* libsparse/output_file.c
	* libsparse/include/sparse/sparse.h


2015-04-04  Jo-Philipp Wich  <jow@openwrt.org>

	Import make_ext4fs sources

	* make_ext4fs.c
	* ext4_crypt.h
	* contents.h
	* make_ext4fs.h
	* ext4fixup_main.c
	* unencrypted_properties.h
	* ext4_utils.c
	* make_ext4fs_main.c
	* indirect.c
	* ext4_utils.h
	* ext4.h
	* ext4_kernel_headers.h
	* e4crypt_static.c
	* indirect.h
	* extent.c
	* uuid.c
	* test_ext4fixup
	* extent.h
	* uuid.h
	* crc16.c
	* ext4_crypt.cpp
	* Android.mk
	* setup_fs.c
	* NOTICE
	* unencrypted_properties.cpp
	* ext4_sb.c
	* ext4_extents.h
	* ext4_sb.h
	* ext2simg.c
	* xattr.h
	* wipe.c
	* wipe.h
	* ext4_crypt_init_extensions.cpp
	* allocate.c
	* mkuserimg.sh
	* sha1.c
	* allocate.h
	* canned_fs_config.c
	* sha1.h
	* canned_fs_config.h
	* ext4fixup.c
	* jbd2.h
	* ext4fixup.h
	* MODULE_LICENSE_APACHE2
	* contents.c