base64EncodeFile/main.cpp

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/*
 * main.cpp
 *
 * Copyright (C) 2007,2011  Thomas A. Vaughan
 * All rights reserved.
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THOMAS A. VAUGHAN ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THOMAS A. VAUGHAN BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Bogus base64 encoding (only works when decoded using crypto::decodeBase64)
 */

// includes --------------------------------------------------------------------
#include "wave-crypto/wave-crypto.h"

#include <iostream>
#include <fstream>

#include "common/wave_ex.h"
#include "perf/perf.h"


////////////////////////////////////////////////////////////////////////////////
//
//      static helper methods
//
////////////////////////////////////////////////////////////////////////////////


////////////////////////////////////////////////////////////////////////////////
//
//      entry point
//
////////////////////////////////////////////////////////////////////////////////

int
main
(
IN int argc,
IN const char * argv[]
)
{
        ASSERT(2 == argc, "usage: base64EncodeFile <path>");
        const char * filename = argv[1];
        DPRINTF("  base-64 encoding file '%s' using crypto::encodeBase64()",
            filename);

        const std::streampos s_maxData = 0x00FFFFFF;// this isn't for huge files
        int retval = 0;
        try {
                // open file
                std::ifstream infile(filename);
                ASSERT_THROW(infile.good(),
                    "Failed to open file: " << filename);

                // get file length
                infile.seekg(0, std::ios::end);
                std::streampos pos = infile.tellg();
                infile.seekg(0, std::ios::beg);
                ASSERT_THROW(pos <= s_maxData,
                    "Stream is too big: " << pos << " bytes");
                int bytes = (int) pos;
                DPRINTF("  byte count: %d", bytes);
                ASSERT(bytes >= 0, "should be non-negative");

                // allocate space for raw data
                byte_t * data = new byte_t[bytes];
                ASSERT(data, "out of memory");

                // okay, read the whole file
                infile.read((char *) data, bytes);

                // encode
                std::string out = crypto::encodeBase64(data, bytes, true);

                // write
                std::cout << out;

        } catch (std::exception& e) {
                DPRINTF("Exception: %s", e.what());
                retval = 1;
        } catch (...) {
                DPRINTF("Unknown exception!");
                retval = 2;
        }
        perf::dumpTimingSummary(std::cerr);

        return retval;
}