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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>
2019-10-23For Windows builds, remove the so-version, link libgcc staticallyDavid Oberhollenzer
The -static-libgcc flag has to be passed through the compiler with a "-Wc," prefix, because libtool tries to be clever about linker flags. If added directly to LDFLAGS, libtool removes it. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-23Fix sqfs_dir_writer_add_entry behaviour on empty stringsDavid Oberhollenzer
SquashFS cannot represent empty string file names in the directory entry structure, so reject them and report an error. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-23bugfix: Check no_xattr flagUzi Erdenebileg
2019-10-11Add the required libtool magic to build a Windows DLLDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-11Remove usage of strchrnul from libsquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-11Add Windows implementation for sqfs_file_tDavid Oberhollenzer
This commit moves the generic unix implementation into a "unix" subdirectory and adds a "win32" subdirectory with a winapi based implementation. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-08Remove maximum queue backlog guestimation.David Oberhollenzer
Partially revers 2b7df394057c013fd042b85a4d5fd0104ba4a9be. Making the queue fill the entire RAM had some unintended side effects that need further investigation. For now, revert back to the old behaviour. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-08Fix: propperly clear index entryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-08Fix storing of the directory index in the inode, size accountingDavid Oberhollenzer
After the last modification, the directory index size counter no longer counts the size, but the number of index entries. To avoid future confusion, remove the thing entirely and compute the size on the fly. Furthermore, eliminate unaligned memory writes and fix the darn counter once again. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-08Fix recovery of directory index in inode readerDavid Oberhollenzer
Apparently mksquashfs writes an actual usage count (1 = 1 entry, 2 = 2 entries; i.e. NOT off by one). Also, if it does happen to be garbage, guard against an overflow. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-08Fix unaligned reads in write_dir_indexDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-08Make sure the statistics counters are initialized to 0David 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>
2019-10-07Replace write_data in libcommon with less generic, opencoded oneDavid 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 libsqfshelper to libcommonDavid Oberhollenzer
That is IMO less confusing and express what it is (i.e. what it has become) more clearly, i.e. common code shared by the utilities. 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>
2019-10-06Fix missing stdlib.h includeDavid Oberhollenzer
Problem only showed up on a different machine and went unnoticed earlier. 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>
2019-10-06Fix resource leaks reported by coverityDavid 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>
2019-10-05Set sane defaults for backlog and job countDavid Oberhollenzer
Instead of defaulting to -j 1 and -Q 10 times the job count if no option is provided, let tar2sqfs and gensquashfs use all available CPUs and about roughly half the available RAM, if this information can be gathered. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-05Add more diagnostic messagesDavid 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>
2019-10-03Cleanup: simplify tree_node_to_inodeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-03Remove accidental internal use of stdint typesDavid 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>
2019-10-03Cleanup: merge common code paths in tree serializationDavid Oberhollenzer
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>
2019-09-29Fix inode numbering: always start with 1, use 0 as parent for the rootDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Fix inode writer: do not store the file mode, only permissionsDavid Oberhollenzer
SquashFS restores the file mode from the type, so those bits are completely redundant. On a side note: this also reduces entropy, allowing the compressor to *maybe* squeeze a few more bytes out. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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