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Plt/nanocbor fixes for wextra #2

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Plt/nanocbor fixes for wextra #2

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1aea04d
For-loop copy to build up 64-bit
MEnsted Oct 24, 2022
29fe59a
addingSubmod
ainsworthkohler Jan 16, 2023
78a36fc
Revert "addingSubmod"
ainsworthkohler Jan 16, 2023
b7cb4e9
size_t, use size_t instead of int
pthomas Oct 3, 2023
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2 changes: 1 addition & 1 deletion include/nanocbor/nanocbor.h
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Original file line number Diff line number Diff line change
Expand Up @@ -241,7 +241,7 @@ void nanocbor_decoder_init(nanocbor_value_t *value,
* @return major type
* @return NANOCBOR_ERR_END if the buffer is exhausted
*/
int nanocbor_get_type(const nanocbor_value_t *value);
size_t nanocbor_get_type(const nanocbor_value_t *value);

/**
* @brief Check if the current buffer or container is exhausted
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14 changes: 8 additions & 6 deletions src/decoder.c
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Original file line number Diff line number Diff line change
Expand Up @@ -85,7 +85,7 @@ bool nanocbor_at_end(const nanocbor_value_t *it)
return end;
}

int nanocbor_get_type(const nanocbor_value_t *value)
size_t nanocbor_get_type(const nanocbor_value_t *value)
{
if (nanocbor_at_end(value)) {
return NANOCBOR_ERR_END;
Expand Down Expand Up @@ -121,12 +121,14 @@ static int _get_uint64(const nanocbor_value_t *cvalue, uint32_t *value, uint_lea
return NANOCBOR_ERR_END;
}
uint64_t tmp = 0;
uint_fast64_t val64;
/* Copy the value from cbor to the least significant bytes */
memcpy(((uint_least8_t *)&tmp) + sizeof(uint64_t) - bytes, cvalue->cur + 1U, bytes);
/* NOLINTNEXTLINE: user supplied function */
tmp = NANOCBOR_BE64TOH_FUNC(tmp);
*value = 0;
memcpy(value, &tmp, bytes);
/* for-loop to handle excotic cpu arthitectures, eg. no 8-bit support*/
for (uint_fast8_t i = 0; i < bytes; i++) {
val64 = 0x00000000000000ffull & *((uint_fast8_t*)(cvalue->cur + 1 + i));
tmp |= ( val64<<(8 * (bytes - i - 1)) );
}
*value = tmp;

return (int)(1 + bytes);
}
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