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path: root/lib/sqfs/deserialize_fstree.c
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2019-07-24Enable largefile supportMatt 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>
2019-07-23Fix tree node scanningDavid Oberhollenzer
- Bail early on empty directories without touching the meta readers. - Aport the directory read loop if we can't even read a header anymore, no matter if there are bytes remaining. - Also add that same condition to the inner loop. The later two actually caused a numeric overflow on some particularly malformed squashfs images, going into a RAM filling infinite loop. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-22Cleanup: split fstree sort into 2 fstree independend functionsDavid Oberhollenzer
Make tree node list sort and recursive variant available and independend of the fstree_t. This is considered cleaner, since the fstree_t actually isn't needed for any of this and we can just call the recusvie sort on the root instead, and we can use the sort implementation directly for things like the upcoming unit test. Also this commit splits up the merge/sort implementation into a seperate split and merge functions to make the code somewhat more readable. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-19Cleanup fstree codeDavid Oberhollenzer
Replace default_$FIELD with a struct stat. Merge the rest of add_node/add_file into mknode and add by path+stat. Expose the mknode function and replace all the duplicated node pointer arithmetic magic with a call to mknode. Plus a generic cleanup by utlizing new util functions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-10cleanup: move tree deserialization to libsqfs.aDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>