X-Git-Url: https://gitweb.ps.run/matrix_esp_thesis/blobdiff_plain/21c6e8484b0bd05c27e5a91f2884d431926adc61..da776f86b42946715c27edd64f7558b9d5080df1:/ext/olm/src/pickle.cpp?ds=sidebyside

diff --git a/ext/olm/src/pickle.cpp b/ext/olm/src/pickle.cpp
new file mode 100644
index 0000000..3bffb36
--- /dev/null
+++ b/ext/olm/src/pickle.cpp
@@ -0,0 +1,274 @@
+/* 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 (!pos || end < pos + 4) return nullptr;
+    for (unsigned i = 4; i--;) { value <<= 8; value |= *(pos++); }
+    return pos;
+}
+
+std::uint8_t * olm::pickle(
+    std::uint8_t * pos,
+    std::uint8_t value
+) {
+    *(pos++) = value;
+    return pos;
+}
+
+std::uint8_t const * olm::unpickle(
+    std::uint8_t const * pos, std::uint8_t const * end,
+    std::uint8_t & value
+) {
+    if (!pos || pos == end) return nullptr;
+    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 || pos == end) return nullptr;
+    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 (!pos || end < pos + bytes_length) return nullptr;
+    std::memcpy(bytes, pos, bytes_length);
+    return pos + bytes_length;
+}
+
+
+std::size_t olm::pickle_length(
+    const _olm_curve25519_public_key & value
+) {
+    return sizeof(value.public_key);
+}
+
+
+std::uint8_t * olm::pickle(
+    std::uint8_t * pos,
+    const _olm_curve25519_public_key & 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_curve25519_public_key & value
+) {
+    return olm::unpickle_bytes(
+        pos, end, value.public_key, sizeof(value.public_key)
+    );
+}
+
+
+std::size_t olm::pickle_length(
+    const _olm_curve25519_key_pair & value
+) {
+    return sizeof(value.public_key.public_key)
+        + sizeof(value.private_key.private_key);
+}
+
+
+std::uint8_t * olm::pickle(
+    std::uint8_t * pos,
+    const _olm_curve25519_key_pair & value
+) {
+    pos = olm::pickle_bytes(
+        pos, value.public_key.public_key,
+        sizeof(value.public_key.public_key)
+    );
+    pos = olm::pickle_bytes(
+        pos, value.private_key.private_key,
+        sizeof(value.private_key.private_key)
+    );
+    return pos;
+}
+
+
+std::uint8_t const * olm::unpickle(
+    std::uint8_t const * pos, std::uint8_t const * end,
+    _olm_curve25519_key_pair & value
+) {
+    pos = olm::unpickle_bytes(
+        pos, end, value.public_key.public_key,
+        sizeof(value.public_key.public_key)
+    );
+    if (!pos) return nullptr;
+
+    pos = olm::unpickle_bytes(
+        pos, end, value.private_key.private_key,
+        sizeof(value.private_key.private_key)
+    );
+    if (!pos) return nullptr;
+
+    return pos;
+}
+
+////// pickle.h implementations
+
+std::size_t _olm_pickle_ed25519_public_key_length(
+    const _olm_ed25519_public_key * value
+) {
+    return sizeof(value->public_key);
+}
+
+
+std::uint8_t * _olm_pickle_ed25519_public_key(
+    std::uint8_t * pos,
+    const _olm_ed25519_public_key *value
+) {
+    return olm::pickle_bytes(
+        pos, value->public_key, sizeof(value->public_key)
+    );
+}
+
+
+std::uint8_t const * _olm_unpickle_ed25519_public_key(
+    std::uint8_t const * pos, std::uint8_t const * end,
+    _olm_ed25519_public_key * value
+) {
+    return olm::unpickle_bytes(
+        pos, end, value->public_key, sizeof(value->public_key)
+    );
+}
+
+
+std::size_t _olm_pickle_ed25519_key_pair_length(
+    const _olm_ed25519_key_pair *value
+) {
+    return sizeof(value->public_key.public_key)
+        + sizeof(value->private_key.private_key);
+}
+
+
+std::uint8_t * _olm_pickle_ed25519_key_pair(
+    std::uint8_t * pos,
+    const _olm_ed25519_key_pair *value
+) {
+    pos = olm::pickle_bytes(
+        pos, value->public_key.public_key,
+        sizeof(value->public_key.public_key)
+    );
+    pos = olm::pickle_bytes(
+        pos, value->private_key.private_key,
+        sizeof(value->private_key.private_key)
+    );
+    return pos;
+}
+
+
+std::uint8_t const * _olm_unpickle_ed25519_key_pair(
+    std::uint8_t const * pos, std::uint8_t const * end,
+    _olm_ed25519_key_pair *value
+) {
+    pos = olm::unpickle_bytes(
+        pos, end, value->public_key.public_key,
+        sizeof(value->public_key.public_key)
+    );
+    if (!pos) return nullptr;
+
+    pos = olm::unpickle_bytes(
+        pos, end, value->private_key.private_key,
+        sizeof(value->private_key.private_key)
+    );
+    if (!pos) return nullptr;
+
+    return pos;
+}
+
+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_uint8(uint8_t * pos, uint8_t value) {
+    return olm::pickle(pos, value);
+}
+
+uint8_t const * _olm_unpickle_uint8(
+    uint8_t const * pos, uint8_t const * end,
+    uint8_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);
+}