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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 inserting the selected entry, the next_by_type pointer is
supposed to be cleared, but the code accidentaly broke up the
next pointer, removing the element from the tree.
Fixes: e1e655b02f6c54177f9070eeb221ab95c6d4e20f
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Instead of printing out error messages, return an errro ID and match
the behavior with the Windows implementation. Also, don't check first
if the struct stat says it is a link, the readlinkat() system call
will fail if it isn't. Avoid confusing the deputy.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This is also the reason we need to lug around the original directory
path on Windows.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Instead of having a file_info_t next pointer, requiring an up-cast
to tree_node_t all the time, simply add a "next_by_type" pointer to
the tree node itself, which can also be used for other purposes by
other node types and removes the need for up-casting.
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 single boolean created_implicitly can be replaced with a general
purpose flag field. The "children" pointer can then be hoisted directly
into the data union of tree_node_t.
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 we look at a sub directory, piece totether the full path and open
that instead. This allows us to move the directory open into the scan
function and get rid of the dirfd trickery. Also pull the recusion
step out into the parent 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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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 idea of the block align feature was to allow micro-managing that
some files are forcefully aligned to 1k/4k ("device block") boundaries,
hoping to improve access time at the cost of data density. The feature
was not exposed in the tools for a long time and eventuall added to the
sort file. Measurement and experimentation showed, that it in fact
worsened the read performance on a test system with an old micro SD
card as the bottle neck.
The feature is removed, and if needed, can be brought back simply by
wrapping/sub-classing the default block writer, if need be..
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Generate a simple tarball and compare it with a reference.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The tar_istream_t reads the data from a tar file, having been given
the header, and synthesizes zero bytes for sparse regions.
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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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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The "from dir" and from "from file" code, as well as the "sort file"
code is specific to gensquashfs, so move them there and the test
cases as well.
The medium term idea is to reduce libfstree to a stub, merge it into
the generic writer and ultimately hoist that into libsquashfs.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- When printing an error, specify the filename and line number
- Always print an error, including out of memory conditions
- Fail if we encounter a line that we don't recognize
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The xattr values are not strings, they are arbitrary byte blobs.
To be on the safe side tough, we should still allocate the space for
the extra null byte and propperly initialize the buffer.
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 just too darn big, crossing the maximum guaranteed by C99.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The help text should provide a short, concise explanation, for
quickly lookup up how to use the programs. For the input
formats, this is mostly covered by the examples themselves.
The detailed description can remain in the man page.
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 line-by-line reading function in the io library was specifically
added for this kind of use case, so we don't have to handle trimming
of lines, don't have to touch getline() and it's convoluted error
handling (return value -1 could mean either EOF or error).
The code that searches for '\n' and replaces it with '\0' can be
removed as well and a memory leak involving "line" is removed along
the way.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- Some of the error/cleanup paths are merged.
- Struct fields don't have to be set to NULL if the entire struct is
free'd immediately after.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Similar to the hex blob decoder, we need this once for tar and
once for the filemap xattr parser.
Simply add a single, central implementation to libutil, with a
simple unit test, and then use it in both libtar and gensquashfs.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Since we need it twice (once for tar, once for the filemap xattr
parser), add a single, central implementation to libutil, add a
unit test for that implementation and then use it in both libtar
and gensquashfs.
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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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The base path is passed to the fstree_from_file function and in turn
to the individual callbacks.
The line parsing function is modified to allow '*' as mode, uid and gid
for specifically marked callbacks.
A glob callback is added that internally uses the fstree_from_dir scanning
functions in combination with a filter callback.
Directory scanning flags are parsed from the extra arguments before
interpreting it as a path fragment.
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 of using the fstree root, let the caller specify it.
- Add a flag to prevent recursion into sub directories.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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