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The XZ option parser had a similar function to parse_size. This commit
removes the other implementation and extends parse_size with the one
missing feature, i.e. allowing a '%' suffix for a relative value.
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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In libtar, set a special flag if the header is actually a hard link.
In tar2sqfs, create a hard link node and skip the rest for hard links.
Also refues to set the root attributes from a hard link, it may refere
to a node that we have missed earlier, there is nothing else that we
can do here.
In fstree_from_file, add a "link" command for adding hard links.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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In libfstree, add a function to add a hard link to the fstree. The
hard links stores the target in the data.target field, canonicalizes
the target and sets a sentinel mode. A second function is used to
resolve link, i.e. replacing it with a direct pointer, setting another
sentinel mode and increasing the targets link count.
The post process function tries to resolve unresolved hard links and
only allocates inode numbers for nodes that aren't hard links. If the
target node of a hard link does not have an inode number yet, the two
need to be swapped, since this is also the order in which they are
serialized.
The serialization function in libcommon simply has to skip hard link
nodes and when writing directory entries, use the inode num/ref of
the target node.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: Benjamin Drung <benjamin.drung@cloud.ionos.com>
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Instead of having 3 different functions for sorting the tree, numbering
the nodes and generating a file list, that all have to be used in the
right order, this commit merges them into a single "fstree_post_process"
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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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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When converting a SquashFS image to a tarball, it makes no sense to
refuse conversion if the filename is considered evil by the OS.
This patch adds an option to is_filename_sane to check if the OS has
a problem with the given file name. sqfs2tar sets it to false and
converts everything while rdsquashfs sets it to true when unpacking.
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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Instead of returning the ID through a pointer and an error code as
return status, return a single int that could be a compressor ID
(positive values) or an error code (negative values).
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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There were only a hand full of instances outside libsquashfs that used
the alloc code. In most cases, the thing allocated hat its size derived
from something already in memory anyway, so it is safe to assume its
size fits into a size_t.
At the same time, the opencoded Windows path conversion functions are
all unified into a single helper 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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The liblzo2 library is licensed under GPLv2, so it is not possible to
distribute binaries of libsquashfs that link against liblzo2 under
LGPL.
This commit moves the LZO compressor implementation to libcommon,
where this isn't a problem, since the tools themselves are licensed
under GPLv3.
It removes the ability of libsquashfs to read or generate LZO compressed
SquashFS images, but the tools still can.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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In most cases, including unistd.h and fcntl.h was a left over anyway.
In the cases where it was not, move it to compat.h.
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 usual, Windows has things different and is the platform where
the problem was actually discovered.
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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Instead, use stdio FILE pointers. On POSIX systems, use fileno to get
the file descriptor and hopefully create sparase files.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit makes sure entries with empty file names are
skipped by tar2sqfs.
The case of a directory with the name './' is treated specially,
because tar can generate in some common use cases.
For instance:
$ mkdir foo
$ touch foo/bar
$ tar -C ./foo -c . > out.tar
$ tar tf out.tar
will generate a tar file with an entry named './'.
For the future it might be interesting to turn that into the root
inode somehow.
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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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>
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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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It's only ever used for padding tarballs.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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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>
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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>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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It is IMO more intuitive to use the timestamps from the archive by default
and only replacing them if explicitly specified.
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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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If the super block has the no-xattr-flag NOT SET, try to read the
extended attributes.
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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- We don't have "endian.h" everywhere. On some BSDs its in sys and
on some BSDs the macros have different names.
- We definitely don't have sysmacros.h on non-Unix-like systems.
- Likewise for sys/types.h, sys/stat.h and their contents.
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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Now that dir_info_t and file_info_t have reasonably small, use them in
tree_node_t directly instead of doing pointer arithmetic magic on the
payload area.
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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