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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The file_info_t no longer stores the size or other such information,
so there is no need to do a stat on the input file. This also means
that gensquashfs no longer needs to change the working directory when
using the function.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit splits the SELinux relabeling function up into 3 parts:
- open the label file
- apply relabeling rules to a given file
- close the label file
The relabeling is done while building the tree (if reading from an
input directory) or in a post process step if reading from a desription
file.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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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>
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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>
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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>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- The write_data_from_file function no longer needs the block size
- Also remove the old data writer flags, pass the flags argument
directly to the begin-file function.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- Move the statstics hooks to the rest of the statistics code
- Used the new data writer directly in gensquashfs & tar2sqfs
- Demote what is left to a helper function for processing an
input file and submitting it to the new data writer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Changes are minor, but needs some temporary hacks in fstree again.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- file list is no longer needed for statistics
- the size field in the directory info structure is no longer in use
- sqfs2tar, rdsquashfs and sqfsdiff no longer depend on libfstree.a
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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First, this commit moves the create-blocks-from-fd function over to
libsquashfs and ports it to work on an sqfs_file_t instead.
Second, the function in the data_writer that reads from a file descriptor
is adjusted to use an sqfs_file_t instead.
Finally, the tools that use it have to be adjusted accordingly.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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As a side effect, this requires the data writer to keep track of
statistics.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Much simpler to just set the correct size in the end, before writing
the super block.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This should make it easier to use libsquashfs with custom setups that
embedd a squashfs image inside something else. Also, it should make
it easier to port to non unix-like platforms.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Add sqfs_* prefix to compressor, move implementation prefix up front.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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As an opaque struct it has a chance to change its layout in the future
without breaking ABI compatibiliy.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit moves stuff like printing help text, command line option
processing and enumerating available processors on stdout out of
the generic compressor code.
The option string is replaced with a structure that directly exposese
the tweakable parameters for all compressors. A function for parsing
the command line arguments into this structure is added in sqfshelper.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This of course entails turning the entire project over to libtool magic.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The idea is to make libsquashfs.a independend of libfstree.a, so it becomes
a general purpose squashfs manipulation library. All the high level glue code
for libfstree.a and utilites that are overly specific with to tools are moved
to a seperate librarby.
This commit makes the first step by moving the stuff with dependencies on
libfstree to a seperate library.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Needs regenerating of the file list that was ripped up and rearranged
during file packing.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This change removes the need for passing a list of files around for
deduplication. Also the deduplication code no longer needs to worry
about order, since the file being deduplicated is only added after
deduplication is done.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Manual initialization is not only verbose, it actually caused a
bug in a past version.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Copy paste mistake: the propper type should be no_argument as it is
only a simple flag and doesn't take extra arguments.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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There is an upper limit of characters in a string literal that it
managed to cross.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The strategy is simple:
- The data writer function that write data/fragment blocks get
access to the list files.
- When writing a fragment, we look for an already written file that has
a fragment with the same size and checksum.
- If we find one, we throw away the fragment and reuse the existing one.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Instead of doing DFS on the fly in gensquashfs, churn out a linked list
of all files in an archive.
Future improvements in packing strategies can go into this file.
This can also be usefull for other purposes in the future, such as file
deduplication or as a work queue for the unpacker.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If some library isn't present, the variable $(FOO_LIBS) simply evaluates
to empty string, so it can be simply be added to LDADD without any checks.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The utility programs pretty much all have the same structure of including
one central header per C file that includes all required library headers,
so we can simply include config.h which we need for large file support
from there and remove it from the C files.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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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>
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