1 /*
2 * Copyright (c) 2022 Eriptic Technologies.
3 *
4 * SPDX-License-Identifier: Apache-2.0 or MIT
5 */
6
7 #include "common/oscore_edhoc_error.h"
8 #include "common/byte_array.h"
9
10 #include "cbor/edhoc_encode_int_type.h"
11 #include "cbor/edhoc_decode_int_type.h"
12
c_x_is_encoded_int(const struct byte_array * c_i)13 bool c_x_is_encoded_int(const struct byte_array *c_i)
14 {
15 if (c_i->len == 1 && ((0x00 <= c_i->ptr[0] && c_i->ptr[0] < 0x18) ||
16 (0x1F < c_i->ptr[0] && c_i->ptr[0] <= 0x37))) {
17 return true;
18 } else {
19 return false;
20 }
21 }
22
23
c_r_is_raw_int(const struct byte_array * c_r)24 bool c_r_is_raw_int(const struct byte_array *c_r)
25 {
26 if (c_r->len == 1 && c_r->ptr[0] >= -24 && c_r->ptr[0] <= 23) {
27 return true;
28 } else {
29 return false;
30 }
31 }
32
33
encode_int(const int32_t * in,uint32_t in_len,struct byte_array * out)34 enum err encode_int(const int32_t *in, uint32_t in_len, struct byte_array *out)
35 {
36 size_t payload_len_out;
37 TRY_EXPECT(cbor_encode_int_type_i(out->ptr, out->len, in,
38 &payload_len_out),
39 0);
40 out->len = (uint32_t)payload_len_out;
41 return ok;
42 }
43
decode_int(const struct byte_array * in,int32_t * out)44 enum err decode_int(const struct byte_array *in, int32_t *out)
45 {
46 size_t decode_len = 0;
47 TRY_EXPECT(cbor_decode_int_type_i(in->ptr, in->len, out, &decode_len),
48 0);
49 if (decode_len != 1) {
50 return cbor_decoding_error;
51 }
52 return ok;
53 }
