OCStackResult OCConvertPayload(OCPayload* payload, uint8_t** outPayload, size_t* size)
{
// TinyCbor Version 47a78569c0 or better on master is required for the re-allocation
// strategy to work. If you receive the following assertion error, please do a git-pull
// from the extlibs/tinycbor/tinycbor directory
#define CborNeedsUpdating (CborErrorOutOfMemory < CborErrorDataTooLarge)
OC_STATIC_ASSERT(!CborNeedsUpdating, "tinycbor needs to be updated to at least 47a78569c0");
#undef CborNeedsUpdating
OCStackResult ret = OC_STACK_INVALID_PARAM;
int64_t err;
uint8_t *out = NULL;
size_t curSize = INIT_SIZE;
VERIFY_PARAM_NON_NULL(TAG, payload, "Input param, payload is NULL");
VERIFY_PARAM_NON_NULL(TAG, outPayload, "OutPayload parameter is NULL");
VERIFY_PARAM_NON_NULL(TAG, size, "size parameter is NULL");
OIC_LOG_V(INFO, TAG, "Converting payload of type %d", payload->type);
if (PAYLOAD_TYPE_SECURITY == payload->type)
{
size_t securityPayloadSize = ((OCSecurityPayload *)payload)->payloadSize;
if (securityPayloadSize > 0)
{
out = (uint8_t *)OICCalloc(1, ((OCSecurityPayload *)payload)->payloadSize);
VERIFY_PARAM_NON_NULL(TAG, out, "Failed to allocate security payload");
}
}
if (out == NULL)
{
out = (uint8_t *)OICCalloc(1, curSize);
VERIFY_PARAM_NON_NULL(TAG, out, "Failed to allocate payload");
}
err = OCConvertPayloadHelper(payload, out, &curSize);
ret = OC_STACK_NO_MEMORY;
if (err == CborErrorOutOfMemory)
{
// reallocate "out" and try again!
uint8_t *out2 = (uint8_t *)OICRealloc(out, curSize);
VERIFY_PARAM_NON_NULL(TAG, out2, "Failed to increase payload size");
out = out2;
err = OCConvertPayloadHelper(payload, out, &curSize);
while (err == CborErrorOutOfMemory)
{
uint8_t *out2 = (uint8_t *)OICRealloc(out, curSize);
VERIFY_PARAM_NON_NULL(TAG, out2, "Failed to increase payload size");
out = out2;
err = OCConvertPayloadHelper(payload, out, &curSize);
}
}
if (err == CborNoError)
{
if (curSize < INIT_SIZE && PAYLOAD_TYPE_SECURITY != payload->type)
{
uint8_t *out2 = (uint8_t *)OICRealloc(out, curSize);
VERIFY_PARAM_NON_NULL(TAG, out2, "Failed to increase payload size");
out = out2;
}
*size = curSize;
*outPayload = out;
OIC_LOG_V(DEBUG, TAG, "Payload Size: %zd Payload : ", *size);
OIC_LOG_BUFFER(DEBUG, TAG, *outPayload, *size);
return OC_STACK_OK;
}
//TODO: Proper conversion from CborError to OCStackResult.
ret = (OCStackResult)-err;
exit:
OICFree(out);
return ret;
}
OCStackResult OCConvertPayload(OCPayload* payload, uint8_t** outPayload, size_t* size)
{
// TinyCbor Version 47a78569c0 or better on master is required for the re-allocation
// strategy to work. If you receive the following assertion error, please do a git-pull
// from the extlibs/tinycbor/tinycbor directory
#define CborNeedsUpdating (CborErrorOutOfMemory < CborErrorDataTooLarge)
OC_STATIC_ASSERT(!CborNeedsUpdating, "tinycbor needs to be updated to at least 47a78569c0");
#undef CborNeedsUpdating
if (!payload)
{
OC_LOG(ERROR, TAG, "Payload parameter NULL");
return OC_STACK_INVALID_PARAM;
}
if (!outPayload || !size)
{
OC_LOG(ERROR, TAG, "Out parameter/s parameter NULL");
return OC_STACK_INVALID_PARAM;
}
OC_LOG_V(INFO, TAG, "Converting payload of type %d", payload->type);
size_t curSize = INIT_SIZE;
uint8_t* out = (uint8_t*)OICCalloc(1, curSize);
int64_t err = OCConvertPayloadHelper(payload, out, &curSize);
if (err == CborErrorOutOfMemory)
{
// reallocate "out" and try again!
uint8_t* out2 = (uint8_t*)OICRealloc(out, curSize);
if (!out2)
{
OICFree(out);
return OC_STACK_NO_MEMORY;
}
out = out2;
err = OCConvertPayloadHelper(payload, out, &curSize);
}
if (err == 0)
{
if (curSize < INIT_SIZE)
{
uint8_t* out2 = (uint8_t*)OICRealloc(out, curSize);
if (!out2)
{
OICFree(out);
return OC_STACK_NO_MEMORY;
}
out = out2;
}
*size = curSize;
*outPayload = out;
return OC_STACK_OK;
}
else if (err < 0)
{
return (OCStackResult)-err;
}
else
{
return OC_STACK_ERROR;
}
}
