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author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvisvgm/src/MD5HashFunction.hpp |
Initial commit
Diffstat (limited to 'dviware/dvisvgm/src/MD5HashFunction.hpp')
-rw-r--r-- | dviware/dvisvgm/src/MD5HashFunction.hpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/dviware/dvisvgm/src/MD5HashFunction.hpp b/dviware/dvisvgm/src/MD5HashFunction.hpp new file mode 100644 index 0000000000..4ff18f3f3e --- /dev/null +++ b/dviware/dvisvgm/src/MD5HashFunction.hpp @@ -0,0 +1,58 @@ +/************************************************************************* +** MD5HashFunction.hpp ** +** ** +** This file is part of dvisvgm -- a fast DVI to SVG converter ** +** Copyright (C) 2005-2019 Martin Gieseking <martin.gieseking@uos.de> ** +** ** +** This program is free software; you can redistribute it and/or ** +** modify it under the terms of the GNU 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 General Public License for more details. ** +** ** +** You should have received a copy of the GNU General Public License ** +** along with this program; if not, see <http://www.gnu.org/licenses/>. ** +*************************************************************************/ + +#ifndef MD5HASHFUNCTION_HPP +#define MD5HASHFUNCTION_HPP + +#include <config.h> +#ifdef HAVE_OPENSSL_MD5_H +# include <openssl/md5.h> +#else +# include <md5.h> +#endif + +#include "HashFunction.hpp" + +class MD5HashFunction : public HashFunction { + public: + explicit MD5HashFunction () {MD5_Init(&_context);} + MD5HashFunction (const char *data, size_t length) : MD5HashFunction() {update(data, length);} + explicit MD5HashFunction (const std::string &data) : MD5HashFunction() {update(data);} + explicit MD5HashFunction (const std::vector<uint8_t> &data) : MD5HashFunction() {update(data);} + int digestSize () const override {return 16;} + void reset () override {MD5_Init(&_context);} + void update (const char *data, size_t length) override {MD5_Update(&_context, data, length);} + void update (const std::string &data) override {update(data.data(), data.length());} + void update (const std::vector<uint8_t> &data) override {update(reinterpret_cast<const char*>(data.data()), data.size());} + + std::vector<uint8_t> digestValue () const override { + std::vector<uint8_t> hash(16); + MD5_CTX savedContext = _context; + MD5_Final(hash.data(), &_context); // also erases the context structure + _context = savedContext; + return hash; + } + + private: + mutable MD5_CTX _context; +}; + +#endif + |