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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/base64.h"
#include <stddef.h>
#include "third_party/modp_b64/modp_b64.h"
namespace base {
void Base64Encode(const StringPiece& input, std::string* output) {
std::string temp;
temp.resize(modp_b64_encode_len(input.size())); // makes room for null byte
// modp_b64_encode_len() returns at least 1, so temp[0] is safe to use.
size_t output_size = modp_b64_encode(&(temp[0]), input.data(), input.size());
temp.resize(output_size); // strips off null byte
output->swap(temp);
}
bool Base64Decode(const StringPiece& input, std::string* output) {
std::string temp;
temp.resize(modp_b64_decode_len(input.size()));
// does not null terminate result since result is binary data!
size_t input_size = input.size();
size_t output_size = modp_b64_decode(&(temp[0]), input.data(), input_size);
if (output_size == MODP_B64_ERROR)
return false;
temp.resize(output_size);
output->swap(temp);
return true;
}
} // namespace base
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