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Diffstat (limited to 'COPYING.md')
| -rw-r--r-- | COPYING.md | 38 |
1 files changed, 35 insertions, 3 deletions
@@ -2,7 +2,8 @@ The `libsquashfs` library is released under the terms and conditions of the **GNU Lesser General Public License version 3 or later**. This applies to -all source code in the directories `lib/sqfs` and `include/sqfs`. +all source code in the directories `lib/sqfs` and `include/sqfs`, unless +otherwise noted. The rest of squashfs-tools-ng is released under the terms and conditions of the **GNU General Public License version 3 or later**. @@ -20,6 +21,25 @@ Although the existing squashfs-tools and the Linux kernel implementation have been used for testing, the source code in this package is neither based on, nor derived from either of them. +## Third Party Library Source Code + +The source code of `libsquashfs` incorporates modified copies of third party +libraries that are subject to the terms and conditions of their respective +licenses. + +The following is included: + + - `lib/sqfs/block_processor/xxhash.c` contains a modified implementation of + the xxhash32 algorithm. See `licenses/xxhash.txt` for information on + copyright and licensing terms and conditions. + - `lib/sqfs/comp/lz4` contains files extracted from the LZ4 compression + library. See `lib/sqfs/comp/lz4/README` for details and `licenses/LZ4.txt` + for information on copyright and licensing terms and conditions. + - `lib/sqfs/comp/zlib` contains files that have been extracted from the the + zlib compression library and modified. See `lib/sqfs/comp/zlib/README` for + details and `licenses/zlib.txt` for information on copyright and licensing + terms and conditions. + # Binary Packages with 3rd Party Libraries If this file is included in a binary release package, additional 3rd party @@ -32,12 +52,24 @@ The following may be included: released under the terms and conditions of the GNU General Public License version 2. A copy of the license is included in `licenses/GPLv2.txt`. - The LZ4 compression library. Copyright Yann Collet. This is released under a - 2 clause BSD style license, included in `licenses/LZ4.txt`. + 2 clause BSD style license, included in `licenses/LZ4.txt`. This library may + be linked directly into `libsquashfs`, built from source code included in + the source distribution. - The XZ utils liblzma library is released into the public domain. An excerpt from the `COPYING` file of its source code archive is included in `licenses/xz.txt`. - The zlib compression library. Copyright Jean-loup Gailly and Mark Adler. This is released under the terms and conditions of the zlib license, - included in `licenses/zlib.txt` + included in `licenses/zlib.txt`. This library may be linked directly + into `libsquashfs`, built from source code included in the source + distribution. - The zstd compression library. Copyright Facebook, Inc. All rights reserved. This is released under a BSD style license, included in `licenses/zstd.txt`. + + +Independend of build configurations, the `libsquashfs` library contains +the following 3rd party source code, directly linked into the library: + + - A modified version of the xxhash32 hash function (Copyright Yann Collet). + This is released under a 2-Clause BSD License. See `licenses/xxhash.txt` + for details. |