From 5494fc310acf0aabb9d828451331e44483eb21c7 Mon Sep 17 00:00:00 2001 From: Malfurious Date: Mon, 21 Oct 2024 11:09:00 -0400 Subject: Remove Crypto++ library The tracked version of Crypto++ is going on 10 years old and doesn't always compile properly on modern tooling. This removes the entire subdirectory as well as references to files in the build script. Due to the number of files touched by this commit, I opt to add its replacement in the next commit. Signed-off-by: Malfurious --- cryptopp562/zlib.cpp | 90 ---------------------------------------------------- 1 file changed, 90 deletions(-) delete mode 100644 cryptopp562/zlib.cpp (limited to 'cryptopp562/zlib.cpp') diff --git a/cryptopp562/zlib.cpp b/cryptopp562/zlib.cpp deleted file mode 100644 index 4abafb0..0000000 --- a/cryptopp562/zlib.cpp +++ /dev/null @@ -1,90 +0,0 @@ -// zlib.cpp - written and placed in the public domain by Wei Dai - -// "zlib" is the name of a well known C language compression library -// (http://www.zlib.org) and also the name of a compression format -// (RFC 1950) that the library implements. This file is part of a -// complete reimplementation of the zlib compression format. - -#include "pch.h" -#include "zlib.h" -#include "zdeflate.h" -#include "zinflate.h" - -NAMESPACE_BEGIN(CryptoPP) - -static const byte DEFLATE_METHOD = 8; -static const byte FDICT_FLAG = 1 << 5; - -// ************************************************************* - -void ZlibCompressor::WritePrestreamHeader() -{ - m_adler32.Restart(); - byte cmf = DEFLATE_METHOD | ((GetLog2WindowSize()-8) << 4); - byte flags = GetCompressionLevel() << 6; - AttachedTransformation()->PutWord16(RoundUpToMultipleOf(cmf*256+flags, 31)); -} - -void ZlibCompressor::ProcessUncompressedData(const byte *inString, size_t length) -{ - m_adler32.Update(inString, length); -} - -void ZlibCompressor::WritePoststreamTail() -{ - FixedSizeSecBlock adler32; - m_adler32.Final(adler32); - AttachedTransformation()->Put(adler32, 4); -} - -unsigned int ZlibCompressor::GetCompressionLevel() const -{ - static const unsigned int deflateToCompressionLevel[] = {0, 1, 1, 1, 2, 2, 2, 2, 2, 3}; - return deflateToCompressionLevel[GetDeflateLevel()]; -} - -// ************************************************************* - -ZlibDecompressor::ZlibDecompressor(BufferedTransformation *attachment, bool repeat, int propagation) - : Inflator(attachment, repeat, propagation) -{ -} - -void ZlibDecompressor::ProcessPrestreamHeader() -{ - m_adler32.Restart(); - - byte cmf; - byte flags; - - if (!m_inQueue.Get(cmf) || !m_inQueue.Get(flags)) - throw HeaderErr(); - - if ((cmf*256+flags) % 31 != 0) - throw HeaderErr(); // if you hit this exception, you're probably trying to decompress invalid data - - if ((cmf & 0xf) != DEFLATE_METHOD) - throw UnsupportedAlgorithm(); - - if (flags & FDICT_FLAG) - throw UnsupportedPresetDictionary(); - - m_log2WindowSize = 8 + (cmf >> 4); -} - -void ZlibDecompressor::ProcessDecompressedData(const byte *inString, size_t length) -{ - AttachedTransformation()->Put(inString, length); - m_adler32.Update(inString, length); -} - -void ZlibDecompressor::ProcessPoststreamTail() -{ - FixedSizeSecBlock adler32; - if (m_inQueue.Get(adler32, 4) != 4) - throw Adler32Err(); - if (!m_adler32.Verify(adler32)) - throw Adler32Err(); -} - -NAMESPACE_END -- cgit v1.2.3