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89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
/*
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* (C) 2002 Jack Lloyd
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*
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* Distributed under the terms of the Botan license
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*/
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/*
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An Botan example application showing how to use the pop and prepend
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functions of Pipe. Based on the md5 example. It's output should always
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be identical to such.
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*/
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#include <iostream>
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#include <fstream>
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#include <botan/botan.h>
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int main(int argc, char* argv[])
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{
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if(argc < 2)
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{
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std::cout << "Usage: " << argv[0] << " <filenames>" << std::endl;
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return 1;
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}
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Botan::LibraryInitializer init;
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// this is a pretty vacuous example, but it's useful as a test
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Botan::Pipe pipe;
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// CPS == Current Pipe Status, ie what Filters are set up
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pipe.prepend(new Botan::Hash_Filter("MD5"));
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// CPS: MD5
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pipe.prepend(new Botan::Hash_Filter("RIPEMD-160"));
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// CPS: RIPEMD-160 | MD5
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pipe.prepend(new Botan::Chain(
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new Botan::Hash_Filter("RIPEMD-160"),
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new Botan::Hash_Filter("RIPEMD-160")));
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// CPS: (RIPEMD-160 | RIPEMD-160) | RIPEMD-160 | MD5
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pipe.pop(); // will pop everything inside the Chain as well as Chain itself
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// CPS: RIPEMD-160 | MD5
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pipe.pop(); // will get rid of the RIPEMD-160 Hash_Filter
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// CPS: MD5
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pipe.prepend(new Botan::Hash_Filter("SHA-1"));
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// CPS: SHA-1 | MD5
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pipe.append(new Botan::Hex_Encoder);
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// CPS: SHA-1 | MD5 | Hex_Encoder
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pipe.prepend(new Botan::Hash_Filter("SHA-1"));
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// CPS: SHA-1 | SHA-1 | MD5 | Hex_Encoder
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pipe.pop(); // Get rid of the Hash_Filter(SHA-1)
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pipe.pop(); // Get rid of the other Hash_Filter(SHA-1)
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// CPS: MD5 | Hex_Encoder
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// The Hex_Encoder is safe because it is at the end of the Pipe,
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// and pop() pulls off the Filter that is at the start.
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pipe.prepend(new Botan::Hash_Filter("RIPEMD-160"));
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// CPS: RIPEMD-160 | MD5 | Hex_Encoder
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pipe.pop(); // Get rid of that last prepended Hash_Filter(RIPEMD-160)
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// CPS: MD5 | Hex_Encoder
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int skipped = 0;
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for(int j = 1; argv[j] != 0; j++)
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{
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std::ifstream file(argv[j], std::ios::binary);
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if(!file)
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{
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std::cout << "ERROR: could not open " << argv[j] << std::endl;
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skipped++;
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continue;
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}
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pipe.start_msg();
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file >> pipe;
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pipe.end_msg();
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file.close();
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pipe.set_default_msg(j-1-skipped);
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std::cout << pipe << " " << argv[j] << std::endl;
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}
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return 0;
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}
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