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/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common/libs/utils/base64.h"
#include <openssl/base64.h>
namespace cuttlefish {
bool EncodeBase64(const void *data, size_t size, std::string *out) {
size_t enc_len = 0;
auto len_res = EVP_EncodedLength(&enc_len, size);
if (!len_res) {
return false;
}
out->resize(enc_len);
auto enc_res = EVP_EncodeBlock(reinterpret_cast<uint8_t *>(out->data()),
reinterpret_cast<const uint8_t *>(data), size);
if (enc_res < 0) {
return false;
}
out->resize(enc_res); // Don't count the terminating \0 character
return true;
}
bool DecodeBase64(const std::string &data, std::vector<uint8_t> *buffer) {
size_t out_len;
auto len_res = EVP_DecodedLength(&out_len, data.size());
if (!len_res) {
return false;
}
buffer->resize(out_len);
return EVP_DecodeBase64(buffer->data(), &out_len, out_len,
reinterpret_cast<const uint8_t *>(data.data()),
data.size());
}
} // namespace cuttlefish