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/*
* (C) 2001 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
/*
Identical to hasher.cpp, but uses Pipe in a different way.
Note this tends to be much less efficient than hasher.cpp, because it
does three passes over the file. For a small file, it doesn't really
matter. But for a large file, or for something you can't re-read
easily (socket, stdin, ...) this is a bad idea.
*/
#include <fstream>
#include <iostream>
#include <string>
#include <botan/botan.h>
int main(int argc, char* argv[])
{
if(argc < 2)
{
std::cout << "Usage: " << argv[0] << " <filenames>" << std::endl;
return 1;
}
Botan::LibraryInitializer init;
const int COUNT = 3;
std::string name[COUNT] = { "MD5", "SHA-1", "RIPEMD-160" };
Botan::Pipe pipe;
int skipped = 0;
for(int j = 1; argv[j] != 0; j++)
{
Botan::Filter* hash[COUNT] = {
new Botan::Hash_Filter(name[0]),
new Botan::Hash_Filter(name[1]),
new Botan::Hash_Filter(name[2]),
};
std::ifstream file(argv[j], std::ios::binary);
if(!file)
{
std::cout << "ERROR: could not open " << argv[j] << std::endl;
skipped++;
continue;
}
for(int k = 0; k != COUNT; k++)
{
pipe.reset();
pipe.append(hash[k]);
pipe.append(new Botan::Hex_Encoder);
pipe.start_msg();
// trickiness: the >> op reads until EOF, but seekg won't work
// unless we're in the "good" state (which EOF is not).
file.clear();
file.seekg(0, std::ios::beg);
file >> pipe;
pipe.end_msg();
}
file.close();
for(int k = 0; k != COUNT; k++)
{
std::string out = pipe.read_all_as_string(COUNT*(j-1-skipped) + k);
std::cout << name[k] << "(" << argv[j] << ") = " << out << std::endl;
}
}
return 0;
}
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