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27 #include "cborconstants_p.h"
28 #include "compilersupport_p.h"
30 static inline uint16_t get16(const uint8_t *ptr)
33 memcpy(&result, ptr, sizeof(result));
34 return cbor_ntohs(result);
37 static inline uint32_t get32(const uint8_t *ptr)
40 memcpy(&result, ptr, sizeof(result));
41 return cbor_ntohl(result);
44 static inline uint64_t get64(const uint8_t *ptr)
47 memcpy(&result, ptr, sizeof(result));
48 return cbor_ntohll(result);
51 static CborError extract_number(const uint8_t **ptr, const uint8_t *end, uint64_t *len)
53 uint8_t additional_information = **ptr & SmallValueMask;
55 if (additional_information < Value8Bit) {
56 *len = additional_information;
59 if (unlikely(additional_information > Value64Bit))
60 return CborErrorIllegalNumber;
62 size_t bytesNeeded = 1 << (additional_information - Value8Bit);
63 if (unlikely(bytesNeeded > (size_t)(end - *ptr))) {
64 return CborErrorUnexpectedEOF;
65 } else if (bytesNeeded == 1) {
66 *len = (uint8_t)(*ptr)[0];
67 } else if (bytesNeeded == 2) {
69 } else if (bytesNeeded == 4) {