* seekable_format: fix from-file reading (not in-memory)
It tries to check the buffer boundary, but there is no buffer for
from-file reading.
* seekable_decompression: break when ZSTD_seekable_decompress() returns zero
* seekable_decompression_mem: break when ZSTD_seekable_decompress() returns zero
* seekable_format: cap the offset+len up to the last dOffset
This will allow to read the whole file w/o gotting corruption error if
the offset is more then the data left in file, i.e.:
$ ./seekable_compression seekable_compression.c 8192 | head
$ zstd -cdq seekable_compression.c.zst | wc -c
4737
Before this patch:
$ ./seekable_decompression seekable_compression.c.zst 0 10000000 | wc -c
ZSTD_seekable_decompress() error : Corrupted block detected
0
After:
$ ./seekable_decompression seekable_compression.c.zst 0 10000000 | wc -c
4737
`zstd_errors.h` and `zdict.h` are public headers, so they deserve to be
in the root `lib/` directory with `zstd.h`, not mixed in with our private
headers.
Replace kernel-style comments with regular comments.
E.g.
```
/** Before */
/* After */
/**
* Before
*/
/*
* After
*/
/***********************************
* Before
***********************************/
/* *********************************
* After
***********************************/
```
* Switch to yearless copyright per FB policy
* Fix up SPDX-License-Identifier lines in `contrib/linux-kernel` sources
* Add zstd copyright/license header to the `contrib/linux-kernel` sources
* Update the `tests/test-license.py` to check for yearless copyright
* Improvements to `tests/test-license.py`
* Check `contrib/linux-kernel` in `tests/test-license.py`
Expose the zstd headers in `include/linux` to avoid struct duplication.
This makes the member names not follow Kernel style guidelines, and
exposes the zstd symbols. But, the LMKL reviewers are okay with that.
These are replaced by the corresponding context resets. When
converting resetCStream, CCtx_setPledgedSrcSize isn't called if the
source size is "unknown".
This helps reduce the reliance on "static only" symbols, as well as
reducing the use of deprecated functions.
Signed-off-by: Stephen Kitt <steve@sk2.org>
This program takes a file with concatenated zstd frames and splits the
file up by frame. E.g. if `dir.zst` has 4 frames:
```
> ./recover_directory dir.zst recovery/file
Recovering 4 files...
Recovered recovery/file0
Recovered recovery/file1
Recovered recovery/file2
Recovered recovery/file3
Complete
```
Add the kernel wrapper API. This keeps the same API and semantics as the
existing kernel API with name changes to be more kernel style and avoid
symbol collisions with zstd.
sen
Felix Handte
Azat Khuzhin
Nick Terrell
Fotis Xenakis
Yann Collet
Yann Collet
Martin Lindsay
Yann Collet
Stephen Kitt