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Modify gensquashfs to pack data using an istream wrapper, similar
to tar2sqfs. To implement the no-tail-pack option, we need the file
size, so we simply open a raw handle first, and query it (using
libsquashfs API) and then create the stream wrapper. For the output
side, we create a block-processor ostream wrapper and splice it.
Since gensquashfs is the only, remaining user of the pack-a-file
functon, we can then remove it from libcommon.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Rename the open function to sqfs_file_open, use an argument for the
return pointer and pass back and error number on failure. Also add
an inermediate function to open an sqfs_file_t using a handle, similar
to the stream API. The get_file_size function is moved to the native
wrappers and some of the implementation is cleaned up a little.
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 ostream creation functions already have flag arguments,
but make them an sqfs_u32 instead of int.
- Add flag arguments to the istream functions, sanitzie and forward
them when opening the handle.
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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Report an error number from the implementations, change the users to
forward that error number (which also means libtar write header/link
now returns an error code) and all subsequent binaries to use
sqfs_perror() instead of relying on the function to print an error
internally.
Also, make sure to preserve errno/GetLastError() in the implementations
and print out a stringified error in sqfs_perror() if the error code
indicates an I/O error.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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istream_t becomes sqfs_istream_t and ostream_t becomes sqfs_ostream_t
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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A simple unit test is added that mainly checks for the behavior of
recursing into a sub-tree and only matching the children at the end,
but not reporting the parents that don't match. The behavior is
inteded to immitate the `find` command.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Piece together the prefix path and pass it to the iterator. That way,
we get the full target paths back from the iterator and can use those
directly in the callback for filtering.
We also no longer need the root node for fstree_from_dir (always tree
root) and the callback can no longer return an error state.
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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Create the directory iterator externally and pass it to fstree_from_dir.
The unit test is also removed, because the heavy lifting is now done
outside the function.
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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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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