squashfs-tools-ng.git - A new set of tools and libraries for working with SquashFS images

Age	Commit message (Collapse)	Author
2019-08-07	Fix forward seek when unpacking sparse files	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-07	Fix zero padding of extracted data blocks	David Oberhollenzer
	Only padd it if the extracted size is less then block size. Doing it with the compressed size results in garbled blocks. Especially because most of them are less than block size when compressed. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-05	cleanup data reader	David Oberhollenzer
	- Split block reading code out from "dump_blocks" into precache_data_block, similar to precache_fragment_block - Merge the code paths for fragment/data block reading and uncompression Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-30	Add propper copyright headers to all source files	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-28	Fix: return the correct value from data_reader_create	David Oberhollenzer
	Cut & paste misshap after mergining with fragment reader: If there are no fragments, data_reader_create should return the data reader, not 0! Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-28	Add general purpose flags field to file_info_t	David Oberhollenzer
	Simplifies some task if we can just add a flag that a file has a framgent or that it has already been detected as a duplicate. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-28	Add fragment and block checksum fields to file_info_t	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-28	Merge remaining code of fragment reader into data reader	David Oberhollenzer
	After the table read unification, there wasn't much left of the fragment reader and the remains could easily be moved over to the data reader. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-28	Split data_reader_dump_file into smaller functions	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-25	Replace reads in squashfs with positional reads	David Oberhollenzer
	In most cases, we know exactely where the data that we want to read is on disk, so instead of using read() on the squashfs (or lseek + read), the code can in many places be cleaned up to use the pread wrapper read_data_at instead. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-24	Enable largefile support	Matt Turner
	Requires that config.h be included before other headers, since the macro _FILE_OFFSET_BITS changes the definitions of things like 'struct stat'. I chose to simply include it at the top of every C file and at immediately after the double-inclusion guards of every header. Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-21	cleanup: remove left over, unused assignment	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-20	Make raw fragment table accessible through fragment/data readers	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-16	cleanup: move error handling into read_retry	David Oberhollenzer
	If read_retry fails to read the expected amount of data (EOF or otherwise), it is almost always an error. This commit renames read_retry to read_data and moves error handling into the function, making a lot of error handling code redundant. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-16	cleanup: move error handling into write_retry	David Oberhollenzer
	If write_retry fails to write everything, it is always an error. This commit renames write_retry to write_data and moves error handling into the function, making a lot of error handling code redundant. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-12	Add generic support for reading files without fragments	David Oberhollenzer
	This commit extends the special case handling for sparse files to generically support reading files that don't have a fragment but instead have a trunkated final block. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-28	Add support for unpacking sparse files as sparse files	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-28	Add support for packing sparse files	David Oberhollenzer
	This commit adds support for packing sparse files into squashfs images as follows: - In the data writer: simply detect zero blocks and write a zero to the block size field and don't emit any data. Record the number of bytes saved this way. For fragments, set the fragment offset to invalid. - In the inode writer: write out the number of bytes saved for sparse files. If there should be a fragment but there is none, append a block count of 0. - In the data reader: if the block size is 0, read nothing from disk and emit an empty block. Do the same if the fragment is missing. - In the inode reader: restore the number of bytes saved for sparse files. The sparse files can be packed and unpacked, but the unpacking will not create sparse files for now. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11	Move file extraction code to generic data_reader_t in libsquashfs.a	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>