mirror of https://git.matrix.org/git/olm.git
108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/* Copyright 2015-2016 OpenMarket Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef OLM_PICKLE_H_
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#define OLM_PICKLE_H_
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#include <stddef.h>
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#include <stdint.h>
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/* Convenience macro for checking the return value of internal unpickling
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* functions and returning early on failure. */
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#ifndef UNPICKLE_OK
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#define UNPICKLE_OK(x) do { if (!(x)) return NULL; } while(0)
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#endif
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/* Convenience macro for failing on corrupted pickles from public
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* API unpickling functions. */
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#define FAIL_ON_CORRUPTED_PICKLE(pos, session) \
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do { \
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if (!pos) { \
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session->last_error = OLM_CORRUPTED_PICKLE; \
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return (size_t)-1; \
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} \
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} while(0)
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct _olm_ed25519_public_key;
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struct _olm_ed25519_key_pair;
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#define _olm_pickle_uint32_length(value) 4
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uint8_t * _olm_pickle_uint32(uint8_t * pos, uint32_t value);
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uint8_t const * _olm_unpickle_uint32(
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uint8_t const * pos, uint8_t const * end,
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uint32_t *value
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);
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#define _olm_pickle_bool_length(value) 1
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uint8_t * _olm_pickle_bool(uint8_t * pos, int value);
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uint8_t const * _olm_unpickle_bool(
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uint8_t const * pos, uint8_t const * end,
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int *value
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);
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#define _olm_pickle_bytes_length(bytes, bytes_length) (bytes_length)
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uint8_t * _olm_pickle_bytes(uint8_t * pos, uint8_t const * bytes,
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size_t bytes_length);
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uint8_t const * _olm_unpickle_bytes(uint8_t const * pos, uint8_t const * end,
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uint8_t * bytes, size_t bytes_length);
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/** Get the number of bytes needed to pickle an ed25519 public key */
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size_t _olm_pickle_ed25519_public_key_length(
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const struct _olm_ed25519_public_key * value
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);
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/** Pickle the ed25519 public key. Returns a pointer to the next free space in
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* the buffer. */
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uint8_t * _olm_pickle_ed25519_public_key(
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uint8_t *pos, const struct _olm_ed25519_public_key * value
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);
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/** Unpickle the ed25519 public key. Returns a pointer to the next item in the
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* buffer on success, NULL on error. */
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const uint8_t * _olm_unpickle_ed25519_public_key(
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const uint8_t *pos, const uint8_t *end,
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struct _olm_ed25519_public_key * value
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);
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/** Get the number of bytes needed to pickle an ed25519 key pair */
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size_t _olm_pickle_ed25519_key_pair_length(
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const struct _olm_ed25519_key_pair * value
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);
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/** Pickle the ed25519 key pair. Returns a pointer to the next free space in
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* the buffer. */
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uint8_t * _olm_pickle_ed25519_key_pair(
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uint8_t *pos, const struct _olm_ed25519_key_pair * value
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);
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/** Unpickle the ed25519 key pair. Returns a pointer to the next item in the
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* buffer on success, NULL on error. */
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const uint8_t * _olm_unpickle_ed25519_key_pair(
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const uint8_t *pos, const uint8_t *end,
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struct _olm_ed25519_key_pair * value
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);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif /* OLM_PICKLE_H */
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