1 /* 2 Copyright (c) 2021 Fraunhofer AISEC. See the COPYRIGHT 3 file at the top-level directory of this distribution. 4 5 Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or 6 http://www.apache.org/licenses/LICENSE-2.0> or the MIT license 7 <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your 8 option. This file may not be copied, modified, or distributed 9 except according to those terms. 10 */ 11 #ifndef MEMCPY_S_H 12 #define MEMCPY_S_H 13 14 #include <stdint.h> 15 16 #include "oscore_edhoc_error.h" 17 18 /** 19 * @brief Checks if a buffer has sufficient size. 20 * 21 * @param is_size The actual size of the buffer in bytes. 22 * @param required_size The required size in bytes. 23 * @return Ok or error code. 24 */ 25 enum err check_buffer_size(uint32_t is_size, uint32_t required_size); 26 27 /** 28 * @brief A save memcpy function equivalent to memcpy_s 29 * (see [1]). memcpy_s may not be available in some 30 * environments thus we provide our own 31 * implementation. 32 * 33 * @param[out] dest Destination buffer. 34 * @param dest_len Length of the destination buffer. 35 * @param[in] source Source buffer. 36 * @param source_len Length of the source buffer. 37 * @return Ok or error code. 38 * 39 * [1]: https://docs.microsoft.com/de-de/cpp/c-runtime-library/reference/memcpy-s-wmemcpy-s?view=msvc-160 40 */ 41 enum err _memcpy_s(uint8_t *dest, uint32_t dest_len, const uint8_t *source, 42 uint32_t source_len); 43 44 #endif 45
