1 // Copyright 2017 The BoringSSL Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef OPENSSL_HEADER_CRYPTO_ERR_INTERNAL_H 16 #define OPENSSL_HEADER_CRYPTO_ERR_INTERNAL_H 17 18 #include <openssl/err.h> 19 20 #if defined(__cplusplus) 21 extern "C" { 22 #endif 23 24 25 // Private error queue functions. 26 27 // ERR_SAVE_STATE contains a saved representation of the error queue. It is 28 // slightly more compact than |ERR_STATE| as the error queue will typically not 29 // contain |ERR_NUM_ERRORS| entries. 30 typedef struct err_save_state_st ERR_SAVE_STATE; 31 32 // ERR_SAVE_STATE_free releases all memory associated with |state|. 33 OPENSSL_EXPORT void ERR_SAVE_STATE_free(ERR_SAVE_STATE *state); 34 35 // ERR_save_state returns a newly-allocated |ERR_SAVE_STATE| structure 36 // containing the current state of the error queue or NULL on allocation 37 // error. It should be released with |ERR_SAVE_STATE_free|. 38 OPENSSL_EXPORT ERR_SAVE_STATE *ERR_save_state(void); 39 40 // ERR_restore_state clears the error queue and replaces it with |state|. 41 OPENSSL_EXPORT void ERR_restore_state(const ERR_SAVE_STATE *state); 42 43 44 #if defined(__cplusplus) 45 } // extern C 46 47 extern "C++" { 48 49 BSSL_NAMESPACE_BEGIN 50 51 BORINGSSL_MAKE_DELETER(ERR_SAVE_STATE, ERR_SAVE_STATE_free) 52 53 BSSL_NAMESPACE_END 54 55 } // extern C++ 56 #endif 57 58 #endif // OPENSSL_HEADER_CRYPTO_ERR_INTERNAL_H 59