//
// base64decode.cpp
//
// This sample demonstrates the Base64Decoder and StreamCopier classes.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier:	BSL-1.0
//


#include "Poco/Base64Decoder.h"
#include "Poco/StreamCopier.h"
#include <iostream>
#include <fstream>


using Poco::Base64Decoder;
using Poco::StreamCopier;


int main(int argc, char** argv)
{
	if (argc != 3)
	{
		std::cout << "usage: " << argv[0] << ": <input_file> <output_file>" << std::endl
				  << "       read base64-encoded <input_file>, decode it and write the result to <output_file>" << std::endl;
		return 1;
	}

	std::ifstream istr(argv[1]);
	if (!istr)
	{
		std::cerr << "cannot open input file: " << argv[1] << std::endl;
		return 2;
	}

	std::ofstream ostr(argv[2], std::ios::binary);
	if (!ostr)
	{
		std::cerr << "cannot open output file: " << argv[2] << std::endl;
		return 3;
	}

	Base64Decoder decoder(istr);
	StreamCopier::copyStream(decoder, ostr);

	if (!ostr)
	{
		std::cerr << "error writing output file: " << argv[2] << std::endl;
		return 4;
	}

	return 0;
}
