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/* Copyright 2015-2016 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.
 */
#ifndef OLM_ERROR_H_
#define OLM_ERROR_H_

#ifdef __cplusplus
extern "C" {
#endif

enum OlmErrorCode {
    OLM_SUCCESS = 0, /*!< There wasn't an error */
    OLM_NOT_ENOUGH_RANDOM = 1,  /*!< Not enough entropy was supplied */
    OLM_OUTPUT_BUFFER_TOO_SMALL = 2, /*!< Supplied output buffer is too small */
    OLM_BAD_MESSAGE_VERSION = 3,  /*!< The message version is unsupported */
    OLM_BAD_MESSAGE_FORMAT = 4, /*!< The message couldn't be decoded */
    OLM_BAD_MESSAGE_MAC = 5, /*!< The message couldn't be decrypted */
    OLM_BAD_MESSAGE_KEY_ID = 6, /*!< The message references an unknown key id */
    OLM_INVALID_BASE64 = 7, /*!< The input base64 was invalid */
    OLM_BAD_ACCOUNT_KEY = 8, /*!< The supplied account key is invalid */
    OLM_UNKNOWN_PICKLE_VERSION = 9, /*!< The pickled object is too new */
    OLM_CORRUPTED_PICKLE = 10, /*!< The pickled object couldn't be decoded */

    OLM_BAD_RATCHET_KEY = 11,
    OLM_BAD_CHAIN_INDEX = 12,

    /* remember to update the list of string constants in error.c when updating
     * this list. */
};

/** get a string representation of the given error code. */
const char * _olm_error_to_string(enum OlmErrorCode error);

#ifdef __cplusplus
} // extern "C"
#endif

#endif /* OLM_ERROR_H_ */