joedb_sha256sum.cpp

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#include "joedb/journal/File.h"
#include "joedb/journal/File_Hasher.h"
#include "joedb/error/Exception.h"
#include "joedb/ui/Arguments.h"
 
#include <iostream>
#include <iomanip>
 
/////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv)
/////////////////////////////////////////////////////////////////////////////
{
 std::cout << std::hex;
 std::cout << std::setfill('0');
 
 joedb::Arguments arguments(argc, argv);
 const bool fast = arguments.has_flag("fast");
 
 while (arguments.get_remaining_count())
 {
  const std::string_view file_name = arguments.get_next();
 
  try
  {
   joedb::File file(file_name.data(), joedb::Open_Mode::read_existing);
 
   const joedb::SHA_256::Hash hash = fast ?
    joedb::File_Hasher::get_fast_hash(file, 0, file.get_size()) :
    joedb::File_Hasher::get_hash(file);
 
   for (uint32_t i = 0; i < 8; i++)
    std::cout << std::setw(8) << hash[i];
   std::cout << "  " << file_name << '\n';
  }
  catch (const joedb::Exception &e)
  {
   std::cout << file_name << ": Error: " << e.what() << '\n';
  }
 }
 
 return 0;
}