Add licence information to sections based on third-party code

soup/Box.hpp

@@ -16,6 +16,8 @@ namespace soup
 	 * I use a 4x4 matrix to store the rotation and centerpoint translation, and a vector for the Extents.
 	 * I just chose to use a 4x4 matrix for simplicity so I could use the matrix class.
 	 * An alternative to storing extents and a centerpoint is storing the minimum corner and maximum corner, so I have a set function that converts from this format.
+	 * 
+	 * (I've reached out on 1 Feb 2022 asking about the licence/legal terms, but did not receive a response.)
 	 */
 
 #pragma pack(push, 1)

soup/Curve25519.hpp

@@ -4,7 +4,8 @@
 
 namespace soup
 {
-	// Based on https://www.dlbeer.co.nz/oss/c25519.html and https://github.com/DavyLandman/compact25519
+	// Original source: https://www.dlbeer.co.nz/oss/c25519.html and https://github.com/DavyLandman/compact25519
+	// Original licence: Dedicated to the public domain.
 
 	struct Curve25519
 	{

soup/QrCode.hpp

@@ -9,7 +9,27 @@
 
 namespace soup
 {
-	// Based on https://www.nayuki.io/page/qr-code-generator-library
+	/*
+	 * Original source: https://www.nayuki.io/page/qr-code-generator-library
+	 * Original licence follows.
+	 * 
+	 * Copyright (c) Project Nayuki.
+	 * Permission is hereby granted, free of charge, to any person obtaining a copy of
+	 * this software and associated documentation files (the "Software"), to deal in
+	 * the Software without restriction, including without limitation the rights to
+	 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+	 * the Software, and to permit persons to whom the Software is furnished to do so,
+	 * subject to the following conditions:
+	 * - The above copyright notice and this permission notice shall be included in
+	 *   all copies or substantial portions of the Software.
+	 * - The Software is provided "as is", without warranty of any kind, express or
+	 *   implied, including but not limited to the warranties of merchantability,
+	 *   fitness for a particular purpose and noninfringement. In no event shall the
+	 *   authors or copyright holders be liable for any claim, damages or other
+	 *   liability, whether in an action of contract, tort or otherwise, arising from,
+	 *   out of or in connection with the Software or the use or other dealings in the
+	 *   Software.
+	 */
 
 	/*
 	 * A QR Code symbol, which is a type of two-dimension barcode.

soup/SegWitAddress.cpp

@@ -7,6 +7,31 @@
 #include "ripemd160.hpp"
 #include "sha256.hpp"
 
+/*
+Original source: https://github.com/sipa/bech32
+Original licence follows.
+
+Copyright (c) 2017, 2021 Pieter Wuille
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
 namespace soup
 {
 	std::string SegWitAddress::encode() const

soup/SegWitAddress.hpp

@@ -5,8 +5,6 @@
 
 namespace soup
 {
-	// Adapted from https://github.com/sipa/bech32
-
 	struct SegWitAddress
 	{
 		enum Network : uint8_t

soup/TinyPngOut.hpp

@@ -9,7 +9,26 @@
 
 namespace soup
 {
-	// Based on https://www.nayuki.io/page/tiny-png-output
+	/*
+	 * Original source: https://www.nayuki.io/page/tiny-png-output
+	 * Original licence follows.
+	 *
+	 * Copyright (c) 2018 Project Nayuki
+	 *
+	 * This program is free software: you can redistribute it and/or modify
+	 * it under the terms of the GNU Lesser General Public License as published by
+	 * the Free Software Foundation, either version 3 of the License, or
+	 * (at your option) any later version.
+	 *
+	 * This program is distributed in the hope that it will be useful,
+	 * but WITHOUT ANY WARRANTY; without even the implied warranty of
+	 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	 * GNU Lesser General Public License for more details.
+	 *
+	 * You should have received a copy of the GNU Lesser General Public License
+	 * along with this program (see COPYING.txt and COPYING.LESSER.txt).
+	 * If not, see <http://www.gnu.org/licenses/>.
+	 */
 
 	/*
 	 * Takes image pixel data in raw RGB8.8.8 format and writes a PNG file to a byte output stream.

soup/aes.cpp

@@ -17,6 +17,31 @@
 #include "Endian.hpp"
 #include "plusaes.hpp"
 
+/*
+Original source: https://github.com/SergeyBel/AES
+Original licence follows.
+
+Copyright (c) 2019 SergeyBel
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
 namespace soup
 {
 	static constexpr int Nb = 4;

soup/aes.hpp

@@ -6,8 +6,6 @@
 
 namespace soup
 {
-	// Adapted from https://github.com/SergeyBel/AES
-
 	class aes
 	{
 	public:

soup/base58.cpp

@@ -5,6 +5,32 @@
 #include "alpha2decodetbl.hpp"
 #include "Exception.hpp"
 
+/*
+Original source: https://github.com/bitcoin/bitcoin/blob/master/src/base58.cpp
+Original licence follows.
+
+Copyright (c) 2009-2023 The Bitcoin Core developers
+Copyright (c) 2009-2023 Bitcoin Developers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
 namespace soup
 {
 	std::string base58::decode(const std::string& in)

soup/base58.hpp

@@ -4,8 +4,6 @@
 
 namespace soup
 {
-	// Adapted from https://github.com/bitcoin/bitcoin/blob/master/src/base58.cpp
-
 	struct base58
 	{
 		[[nodiscard]] static std::string decode(const std::string& in);

soup/base64.cpp

@@ -1,5 +1,31 @@
 #include "base64.hpp"
 
+/*
+Original source: https://gist.github.com/tomykaira/f0fd86b6c73063283afe550bc5d77594
+Original licence follows.
+
+Copyright (c) 2016 tomykaira
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
 namespace soup
 {
 	static constexpr char table_encode_base64[] = {

soup/base64.hpp

@@ -6,8 +6,6 @@
 
 namespace soup
 {
-	// Adapted from https://gist.github.com/tomykaira/f0fd86b6c73063283afe550bc5d77594
-
 	struct base64
 	{
 		[[nodiscard]] static std::string encode(const char* data, const bool pad = true) noexcept;

soup/bech32.cpp

@@ -1,5 +1,30 @@
 #include "bech32.hpp"
 
+/*
+Original source: https://github.com/sipa/bech32
+Original licence follows.
+
+Copyright (c) 2017, 2021 Pieter Wuille
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
 namespace soup
 {
 	/** The Bech32 character set for encoding. */

soup/bech32.hpp

@@ -6,8 +6,6 @@
 
 namespace soup
 {
-	// Adapted from https://github.com/sipa/bech32
-
 	struct bech32
 	{
 		[[nodiscard]] static std::string encode(const std::string& hrp, const std::vector<uint8_t>& values);

soup/deflate.cpp

@@ -8,6 +8,31 @@
 #include "crc32.hpp"
 #include "Endian.hpp"
 
+/*
+Original source: https://github.com/Artexety/inflatecpp
+Original licence follows.
+
+Copyright (c) 2020 Artexety
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
 #if SOUP_BITS == 64
 #define X64BIT_SHIFTER
 #endif

soup/ripemd160.cpp

@@ -3,6 +3,34 @@
 #include <cstdint>
 #include <cstring>
 
+/*
+Original source: https://homes.esat.kuleuven.be/~bosselae/ripemd160.html
+Original licence follows.
+
+Copyright (c) 1996 Katholieke Universiteit Leuven
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without restriction,
+including without limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of the Software,
+and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+(They also state that this is not covered by any patents, so, cool!)
+*/
+
 namespace soup
 {
     /* macro definitions */

soup/ripemd160.hpp

@@ -4,7 +4,5 @@
 
 namespace soup
 {
-	// Adapted from https://homes.esat.kuleuven.be/~bosselae/ripemd160.html
-
 	[[nodiscard]] std::string ripemd160(const std::string& in);
 }

soup/sha1.cpp

@@ -18,7 +18,8 @@
 
 namespace soup
 {
-	// Adapted from https://github.com/vog/sha1
+	// Original source: https://github.com/vog/sha1
+	// Original licence: Dedicated to the public domain.
 
 	static constexpr auto BLOCK_INTS = sha1::BLOCK_BYTES / sizeof(uint32_t);