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2019-11-06Remove raw file descriptors from tar read pathDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-06Remove raw file descriptors from unpack write pathsDavid Oberhollenzer
Instead, use stdio FILE pointers. On POSIX systems, use fileno to get the file descriptor and hopefully create sparase files. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-28Add macro for printf format specifier for size_tDavid Oberhollenzer
The MSVC runtime is a wierdo C89 platform with some cherry picked features from C99 (which does not include the "%zu" format specifier). This commit adds a macro with a size dependend format specifier to be used instead. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-28Add fallback implementation for getsubopt()David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-28Add a minimal fallback implementation for getline()David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-28Add libutil implementation for strndup in case it isn't availableDavid Oberhollenzer
"Some" "non-POSIX systems" don't have that. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-25Add mockup of "struct stat" for WinDOSDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Cleanup: consistent, fixed size data types for generic flag fieldsDavid Oberhollenzer
Instead of using int or unsigned int for generic function flag arguments, consistently use an unsigned, fixed size type. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Do an explicit "is filename sane" checkDavid Oberhollenzer
Until now, filenames containing '/' or being equal to '..' or '.' where not handled explicitly, because they are canonicalized later, which will then fail. This commit adds an explicit check to make those fail immediately with a clear, specific error message. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Cleanup: move libutil related headers to "util" sub directoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Cleanup: move write_data to libtarDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Move print_version declaration from util.h to common.hDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Cleanup: move directory handling code to libcommonDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Cleanup: move read_data function to libtarDavid Oberhollenzer
Its the only user. The other code doesn't touch raw file descriptors anymore. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Cleanup: Move padd_file function to libtarDavid Oberhollenzer
It's only ever used for padding tarballs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Add an implementation for an sqfs_file_t writing to stdoutDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Rename "hihglevel.h" to the more appropriate "common.h"David Oberhollenzer
It only contains helpers for _common_ stuff for all the utilities. The actual high level stuff has been moved to libsquashfs a while ago. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Fix spelling of "align"David Oberhollenzer
Before the misspelled version has a chance to become stable API. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Improve ABI backward & forward compatibillityDavid Oberhollenzer
- Padd the compressor config union - 128 bytes aught to be enough for everyone, i.e. future compressors. - Insist that the padding space is initialized to 0. If a field gets added to an existing compressor, it can test for 0 as a sentinel value. - Add a size field to the hook structure, aka "the Microsoft way". - The explanation is in the comment. - Don't make the Microsoft mistake of checking for >=, insist on *exact* size match. Future users will need a fallback if their hooks are rejected. But at least they will be rejected instead of silently not being used. - Add an unsupported flag check to the dir tree reader. - Add a basic abi unit test that, for now, checks the size of the compressor config struct fields. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-06Cleanup: move padd_sqfs to helper libraryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-06Improve error reporting for sqfs2tar, rdsquashfs, sqfsdiffDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-05Improve error reporting for tar2sqfs and gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-05Add a perror like function for libsquashfs error codesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-05Merge all the common code for generating imagesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-03Add a counter-part to sqfs_inode_get_xattr_indexDavid Oberhollenzer
Combines all the type depenend attribute setting and inode type promotion into a single function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-03Move tree_node_to_inode function to fstree serialization codeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-03Store directory index in generic inode structureDavid Oberhollenzer
This commit modifies the dir writer to store the directory index directly in the payload area of the inode it creates. The size of the index in bytes is stored in a seperate field. Storing the index is moved to the write inode function. The read inode function is in turn also modified to read the directory index from disk and actually store it in the inode structure in memory for later use. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-30Add flag field to directory writer begin for future expansionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Cleanup: rename "compress.h" to "compressor.h"David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Fix str_table_t error behaviour, commentsDavid Oberhollenzer
- str_table_t is used by libsquashfs; Don't write to stderr, report an error code instead. - Fix the comments about that and fix the SPDX license identifier while we're at it. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Cleanup: fstree no longer has any use for the block sizeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Bring back the don't fragment flagDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Make the data writer padding hookableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Cleanup: remove left over declarationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Cleanup: remove string allocation helper functionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Replace fstree/sqfshelper xattr code with sqfs_xattr_writer_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Move fstree selinux code to gensquashfsDavid Oberhollenzer
Same rational as for the dir-scanner code: It's actually the only user and it is going to get a lot closer integerated with libsquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Move fstree_from_dir to gensquashfs codeDavid Oberhollenzer
It's actually the only user and the dir-scanner xattr code is going to get a lot closer integerated with libsquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Add recoding implementation for the xattr writerDavid Oberhollenzer
This commit implements the part of the API responsible for recoding and deduplicating xattr key-value blocks. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Add header with declarations for the sqfs_xattr_writer_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Move declarations for sqfs_xattr_reader_t to a seperate headerDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Add a header for platform compatibillity fluffDavid Oberhollenzer
- We don't have "endian.h" everywhere. On some BSDs its in sys and on some BSDs the macros have different names. - We definitely don't have sysmacros.h on non-Unix-like systems. - Likewise for sys/types.h, sys/stat.h and their contents. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Replace usage of mode_t in libsquashfs with sqfs_u16David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Add enum with inode permissions for compatibility with non-POSIX systemsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Remove use of ssize_t from library APIDavid Oberhollenzer
ssize_t is only available on POSIX platforms and even there it is only defined to hold at least -1 in the range of negative numbers. This commit replaces ssize_t return types with sqfs_s32 and the coresponding function arguments with sqfs_u32. Because the range of positiv numbers for a signed 32 bit number is only half that of the unsigned version, additional checks have to be added. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Cleanup: replace fixed with data types with typedefsDavid Oberhollenzer
This is a fully automated search and replace, i.e. I ran this: git grep -l uint8_t | xargs sed -i 's/uint8_t/sqfs_u8/g' git grep -l uint16_t | xargs sed -i 's/uint16_t/sqfs_u16/g' git grep -l uint32_t | xargs sed -i 's/uint32_t/sqfs_u32/g' git grep -l uint64_t | xargs sed -i 's/uint64_t/sqfs_u64/g' git grep -l int8_t | xargs sed -i 's/int8_t/sqfs_s8/g' git grep -l int16_t | xargs sed -i 's/int16_t/sqfs_s16/g' git grep -l int32_t | xargs sed -i 's/int32_t/sqfs_s32/g' git grep -l int64_t | xargs sed -i 's/int64_t/sqfs_s64/g' and than added the appropriate definitions to sqfs/predef.h The whole point being better compatibillity with platforms that may not have an stdint.h with the propper definitions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Cleanup: remove most of the payload pointer magic from libfstreeDavid Oberhollenzer
Now that dir_info_t and file_info_t have reasonably small, use them in tree_node_t directly instead of doing pointer arithmetic magic on the payload area. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Fix typo in error enumeratorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Add missing comments on error enumeratorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Cleanup: merge data.h into block.hDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>