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
12 #include <stdint.h>
13 #include <string.h>
14
15 #include "common/oscore_edhoc_error.h"
16 #include "common/memcpy_s.h"
17
check_buffer_size(uint32_t is_size,uint32_t required_size)18 enum err check_buffer_size(uint32_t is_size, uint32_t required_size)
19 {
20 if (is_size < required_size) {
21 return buffer_to_small;
22 } else {
23 return ok;
24 }
25 }
26
_memcpy_s(uint8_t * dest,uint32_t dest_len,const uint8_t * source,uint32_t source_len)27 enum err _memcpy_s(uint8_t *dest, uint32_t dest_len, const uint8_t *source,
28 uint32_t source_len)
29 {
30 if (source_len == 0) {
31 return ok;
32 }
33 if ((NULL == dest) || (NULL == source)) {
34 return wrong_parameter;
35 }
36
37 TRY(check_buffer_size(dest_len, source_len));
38 memcpy(dest, source, source_len);
39 return ok;
40 }
41
