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/*
* (C) 2009 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
/*
This is just like the normal hash application, but uses the Unix I/O
system calls instead of C++ iostreams. Previously, this version was
much faster and smaller, but GCC 3.1's libstdc++ seems to have been
improved enough that the difference is now fairly minimal.
Nicely enough, doing the change required changing only about 3 lines
of code.
*/
#include <iostream>
#include <botan/botan.h>
#if !defined(BOTAN_HAS_PIPE_UNIXFD_IO)
#error "You didn't compile the pipe_unixfd module into Botan"
#endif
#include <fcntl.h>
#include <unistd.h>
int main(int argc, char* argv[])
{
if(argc < 3)
{
std::cout << "Usage: " << argv[0] << " digest <filenames>" << std::endl;
return 1;
}
Botan::LibraryInitializer init;
try
{
Botan::Pipe pipe(new Botan::Hash_Filter(argv[1]),
new Botan::Hex_Encoder);
int skipped = 0;
for(int j = 2; argv[j] != 0; j++)
{
int file = open(argv[j], O_RDONLY);
if(file == -1)
{
std::cout << "ERROR: could not open " << argv[j] << std::endl;
skipped++;
continue;
}
pipe.start_msg();
file >> pipe;
pipe.end_msg();
close(file);
pipe.set_default_msg(j-2-skipped);
std::cout << pipe << " " << argv[j] << std::endl;
}
}
catch(Botan::Algorithm_Not_Found)
{
std::cout << "Don't know about the hash function \"" << argv[1] << "\""
<< std::endl;
}
catch(std::exception& e)
{
std::cout << "Exception caught: " << e.what() << std::endl;
}
return 0;
}
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