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In the istream implementation, automatically skip the padding when we
reach end-of-file. Also skip file AND padding when we destroy the
object. Replace the remaining instances with a simple istream_skip
instead and remove the wrapper from libtar.
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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Move it to a separate libxfrm library, where it can be independently
tested as well. The bulk of the new code is also mainly test cases
for the compressors.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Implement grab/drop functions to increase/decrease reference count
and destroy the object if the count drops to 0.
Make sure that all objects that maintain internal references actually
grab that reference, duplicate it in the copy function, drop it in
the destroy handler.
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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Some of the on-disk format internals are moved to a separate header
and some of the stuff from internal.h is moved to that format header.
C++ guards are added in addtion.
Everything PAX related is moved to pax_header.c, some internal
functions are marked as static.
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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On GNU/Linux, *BSD or MacOS we can simply use the system default
library. The copy was primarily only there for the Windows build.
The build script for Windows has now been adapted to download and
compile a shared library from a tarball.
This removes a huge chunk of code from the git tree as well as
the release tarballs. Additionally it gets rid of iffy things like
removing the Zlib copyright/version strings, so the libsquashfs DLL
doesn't export it.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The idea was originally to use struct stat in the libfstree code, so
we can simply hose data read from a directory into the fstree_t. The
struct was then also used with libtar, for simpler interoperation,
but it turned out to introduce a lot of platform quirks and causes
more trouble than it's worth.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The data is processed 2G at a time to avoid this exact issue, but the
check was skipped on 64 bit systems, since the function *used to* use
size_t instead of sqfs_u32.
This commit removes the second check.
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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In addition to skipping non-prefixed files and stripping the prefix
off of entries we accept, the targets of links also have to be altered,
since they can be absolute paths with the root prefix attached.
This can affect symbolic links as well. Altough they are allowed to
point into nowhere, across filesystem boundaries, they may also be
absolute paths refering to existing locations in the filesystem, so
no distinction is made by default.
However, the later may be intended (e.g. only a subdirectory is packed
into SquashFS and then mounted at that location), so a command line
switch is added to disable symlink retargetting.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Modify the man pages and help texts to mention compression support, make
the help option display a list of supported compressors.
Also clarify the squashfs compressor list in the help text to state that
the list shows block compressors supported for SquashFS compression.
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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If tar2sqfs and sqfs2tar want to use comperssion via libfstream, they
need to link against the compressor libraries.
Also, libfstream may need the apropriate cflags to access the headers
on some platforms.
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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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- Split up the huge file in bin/ into one small file per sub directory
- Remove the stub in doc/
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 breaks tar2sqfs.c into multiple files:
- options.c contains the command line argument processing
- process_tarball.c contains the main tar repacking code
- tar2sqfs.c contains what is left (the main function)
- A header is added for gluing it all together.
No actual code is changed. The tar repacking code is slightly modified
to pass the sqfs writer and input file pointer around as argument rather
than using a global variable.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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