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The string is actually always null-terminated, since the calloc above
adds one more byte than what we tell readlink about.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The format is documented as "<c|b> major minor" but the parser was
accidentally changed to require a colon in between.
Fixes: 9864ea5b2045f4bd72633152d71dd1c7f8b0b7f9
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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Bug found using scan-build.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Should the inode table theoretically be empty, the function returns an
undefined value. This commit fixes that case by initializing the return
status to 0, so it returns success status in that case.
Bug found using scan-build.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The refactor of the xattr table grow code merged all allocation code
paths into realloc(), including the initial allocation. This means that
the xattr structure is used uninitialized. This commit makes sure the
reallocated structure is alwayes cleared.
Bug found using scan-build.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Most code path that use 'extra' allocate it using calloc/malloc/strdup
and then converge into a common path that uses free() on extra.
This commit removes a stray one that uses alloca for symlink targets,
so we don't free() a stack buffer further down in the common path.
Bug found using scan-build.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This IMO makes it somewhat easier to read and understand what's going on.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Instead of decomposing a default string in gensquashfs option processing,
move that to fstree_init instead and pass the option string directly to
fstree_init.
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 removes the packdir/packfile based directory setup magic
from fstree_from_file and moves it to gensquashfs. Over there, the
common parts are deduplicated.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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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>
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This commit moves the SELinux label code after the tree is sorted and
the inode table is generated. Sorting helps to make sure that the tree
will always be traversed in a defined, deterministic order and likewise
the creation of xattrs happens in a defined, deterministic order.
Second, we can now use the inode table instead of having to implement a
recursive tree traversal yet again.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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When creating a directory that has previously been created implicitly,
actually update the permissions as the documentation says.
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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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>
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- use generic struct stat based tree node add function
- simplify some of the parsing code
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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Instead of allocating inode numbers as we go, generate and populat an
inode table from the fstree ahead of time. This makes processing nodes
a little bit simpler and we will need that table anyway for NFS export
support later on.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit replaces the chdir to the input directory with pushd/popd
when building the fstree and again when packing files.
This simplifies handling of other file paths given on the command line
that have to be accessed and are relative to the original working
directories.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If packdir and packfile are both specified, use packdir as
alternate root.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This makes path handling a lot easier. We no longer need to paste paths
together to get input file relative paths, since we are in the same
directory.
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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Use libselinux to lookup the context attributes from a file.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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We use a str_table_t to generate unique IDs for all unique keys and all
unique values and then use a post processing step to deduplicate xattr
listings.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- accept "nod" line as advertised, i.e. with space instead of colon
- actually accept "sock" line (copy & paste fail)
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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