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/* Copyright 2015 OpenMarket Ltd
*
* 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 "olm/pickle.hh"
#include "olm/pickle.h"
std::uint8_t * olm::pickle(
std::uint8_t * pos,
std::uint32_t value
) {
pos += 4;
for (unsigned i = 4; i--;) { *(--pos) = value; value >>= 8; }
return pos + 4;
}
std::uint8_t const * olm::unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
std::uint32_t & value
) {
value = 0;
if (end < pos + 4) return end;
for (unsigned i = 4; i--;) { value <<= 8; value |= *(pos++); }
return pos;
}
std::uint8_t * olm::pickle(
std::uint8_t * pos,
bool value
) {
*(pos++) = value ? 1 : 0;
return pos;
}
std::uint8_t const * olm::unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
bool & value
) {
if (pos == end) return end;
value = *(pos++);
return pos;
}
std::uint8_t * olm::pickle_bytes(
std::uint8_t * pos,
std::uint8_t const * bytes, std::size_t bytes_length
) {
std::memcpy(pos, bytes, bytes_length);
return pos + bytes_length;
}
std::uint8_t const * olm::unpickle_bytes(
std::uint8_t const * pos, std::uint8_t const * end,
std::uint8_t * bytes, std::size_t bytes_length
) {
if (end < pos + bytes_length) return end;
std::memcpy(bytes, pos, bytes_length);
return pos + bytes_length;
}
std::size_t olm::pickle_length(
const olm::Curve25519PublicKey & value
) {
return sizeof(value.public_key);
}
std::uint8_t * olm::pickle(
std::uint8_t * pos,
const olm::Curve25519PublicKey & value
) {
pos = olm::pickle_bytes(
pos, value.public_key, sizeof(value.public_key)
);
return pos;
}
std::uint8_t const * olm::unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
olm::Curve25519PublicKey & value
) {
pos = olm::unpickle_bytes(
pos, end, value.public_key, sizeof(value.public_key)
);
return pos;
}
std::size_t olm::pickle_length(
const olm::Curve25519KeyPair & value
) {
return sizeof(value.public_key) + sizeof(value.private_key);
}
std::uint8_t * olm::pickle(
std::uint8_t * pos,
const olm::Curve25519KeyPair & value
) {
pos = olm::pickle_bytes(
pos, value.public_key, sizeof(value.public_key)
);
pos = olm::pickle_bytes(
pos, value.private_key, sizeof(value.private_key)
);
return pos;
}
std::uint8_t const * olm::unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
olm::Curve25519KeyPair & value
) {
pos = olm::unpickle_bytes(
pos, end, value.public_key, sizeof(value.public_key)
);
pos = olm::unpickle_bytes(
pos, end, value.private_key, sizeof(value.private_key)
);
return pos;
}
std::size_t olm::pickle_length(
const olm::Ed25519PublicKey & value
) {
return sizeof(value.public_key);
}
std::uint8_t * olm::pickle(
std::uint8_t * pos,
const olm::Ed25519PublicKey & value
) {
pos = olm::pickle_bytes(
pos, value.public_key, sizeof(value.public_key)
);
return pos;
}
std::uint8_t const * olm::unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
olm::Ed25519PublicKey & value
) {
pos = olm::unpickle_bytes(
pos, end, value.public_key, sizeof(value.public_key)
);
return pos;
}
std::size_t olm::pickle_length(
const olm::Ed25519KeyPair & value
) {
return sizeof(value.public_key) + sizeof(value.private_key);
}
std::uint8_t * olm::pickle(
std::uint8_t * pos,
const olm::Ed25519KeyPair & value
) {
pos = olm::pickle_bytes(
pos, value.public_key, sizeof(value.public_key)
);
pos = olm::pickle_bytes(
pos, value.private_key, sizeof(value.private_key)
);
return pos;
}
std::uint8_t const * olm::unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
olm::Ed25519KeyPair & value
) {
pos = olm::unpickle_bytes(
pos, end, value.public_key, sizeof(value.public_key)
);
pos = olm::unpickle_bytes(
pos, end, value.private_key, sizeof(value.private_key)
);
return pos;
}
////// pickle.h implementations
uint8_t * olm_pickle_uint32(uint8_t * pos, uint32_t value) {
return olm::pickle(pos, value);
}
uint8_t const * olm_unpickle_uint32(
uint8_t const * pos, uint8_t const * end,
uint32_t *value
) {
return olm::unpickle(pos, end, *value);
}
uint8_t * olm_pickle_bool(uint8_t * pos, int value) {
return olm::pickle(pos, (bool)value);
}
uint8_t const * olm_unpickle_bool(
uint8_t const * pos, uint8_t const * end,
int *value
) {
return olm::unpickle(pos, end, *reinterpret_cast<bool *>(value));
}
uint8_t * olm_pickle_bytes(uint8_t * pos, uint8_t const * bytes,
size_t bytes_length) {
return olm::pickle_bytes(pos, bytes, bytes_length);
}
uint8_t const * olm_unpickle_bytes(uint8_t const * pos, uint8_t const * end,
uint8_t * bytes, size_t bytes_length) {
return olm::unpickle_bytes(pos, end, bytes, bytes_length);
}
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