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00001 /* cxxtools/md5stream.h 00002 * 00003 * cxxtools - general purpose C++-toolbox 00004 * Copyright (C) 2003 Tommi Maekitalo 00005 * 00006 * This library is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * This library is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with this library; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 * 00020 */ 00021 00022 #ifndef CXXTOOLS_MD5STREAM_H 00023 #define CXXTOOLS_MD5STREAM_H 00024 00025 #include <cxxtools/md5.h> 00026 #include <iostream> 00027 00028 namespace cxxtools 00029 { 00030 00031 class Md5streambuf : public std::streambuf 00032 { 00033 public: 00034 Md5streambuf() 00035 { } 00036 00037 void getDigest(unsigned char digest[16]); 00038 00039 private: 00040 static const unsigned int bufsize = 64; 00041 char buffer[bufsize]; 00042 cxxtools_MD5_CTX context; 00043 unsigned char digest[16]; 00044 00045 std::streambuf::int_type overflow(std::streambuf::int_type ch); 00046 std::streambuf::int_type underflow(); 00047 int sync(); 00048 }; 00049 00077 class Md5stream : public std::ostream 00078 { 00079 public: 00080 typedef std::ostreambuf_iterator<char> iterator; 00081 00082 private: 00083 Md5streambuf streambuf; 00084 char hexdigest[33]; 00085 00086 public: 00088 Md5stream() 00089 : std::ostream(0) 00090 { 00091 init(&streambuf); 00092 } 00093 00095 void getDigest(unsigned char digest[16]) 00096 { streambuf.getDigest(digest); } 00098 const char* getHexDigest(); 00099 00101 iterator begin() 00102 { return iterator(&streambuf); } 00103 }; 00104 00105 } 00106 00107 #endif // CXXTOOLS_MD5STREAM_H