Simple sample that demonstrates reading the FXOS8700CQ accelerometer, convert the data to JSON and send to an Azure IoT Hub.
Dependencies: azure_umqtt_c iothub_mqtt_transport mbed-rtos mbed wolfSSL Socket lwip-eth lwip-sys lwip
azure_c_shared_utility/hmacsha256.c@3:c0556ff7b8e3, 2016-12-08 (annotated)
- Committer:
- markrad
- Date:
- Thu Dec 08 00:11:40 2016 +0000
- Revision:
- 3:c0556ff7b8e3
Hack the code to get restart working
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
markrad | 3:c0556ff7b8e3 | 1 | // Copyright (c) Microsoft. All rights reserved. |
markrad | 3:c0556ff7b8e3 | 2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information. |
markrad | 3:c0556ff7b8e3 | 3 | |
markrad | 3:c0556ff7b8e3 | 4 | #include <stdlib.h> |
markrad | 3:c0556ff7b8e3 | 5 | #ifdef _CRTDBG_MAP_ALLOC |
markrad | 3:c0556ff7b8e3 | 6 | #include <crtdbg.h> |
markrad | 3:c0556ff7b8e3 | 7 | #endif |
markrad | 3:c0556ff7b8e3 | 8 | #include "azure_c_shared_utility/gballoc.h" |
markrad | 3:c0556ff7b8e3 | 9 | |
markrad | 3:c0556ff7b8e3 | 10 | #include "azure_c_shared_utility/hmacsha256.h" |
markrad | 3:c0556ff7b8e3 | 11 | #include "azure_c_shared_utility/hmac.h" |
markrad | 3:c0556ff7b8e3 | 12 | #include "azure_c_shared_utility/strings.h" |
markrad | 3:c0556ff7b8e3 | 13 | |
markrad | 3:c0556ff7b8e3 | 14 | HMACSHA256_RESULT HMACSHA256_ComputeHash(const unsigned char* key, size_t keyLen, const unsigned char* payload, size_t payloadLen, BUFFER_HANDLE hash) |
markrad | 3:c0556ff7b8e3 | 15 | { |
markrad | 3:c0556ff7b8e3 | 16 | HMACSHA256_RESULT result; |
markrad | 3:c0556ff7b8e3 | 17 | |
markrad | 3:c0556ff7b8e3 | 18 | if (key == NULL || |
markrad | 3:c0556ff7b8e3 | 19 | keyLen == 0 || |
markrad | 3:c0556ff7b8e3 | 20 | payload == NULL || |
markrad | 3:c0556ff7b8e3 | 21 | payloadLen == 0 || |
markrad | 3:c0556ff7b8e3 | 22 | hash == NULL) |
markrad | 3:c0556ff7b8e3 | 23 | { |
markrad | 3:c0556ff7b8e3 | 24 | result = HMACSHA256_INVALID_ARG; |
markrad | 3:c0556ff7b8e3 | 25 | } |
markrad | 3:c0556ff7b8e3 | 26 | else |
markrad | 3:c0556ff7b8e3 | 27 | { |
markrad | 3:c0556ff7b8e3 | 28 | if ((BUFFER_enlarge(hash, 32) != 0) || |
markrad | 3:c0556ff7b8e3 | 29 | (hmac(SHA256, payload, (int)payloadLen, key, (int)keyLen, BUFFER_u_char(hash) ) != 0)) |
markrad | 3:c0556ff7b8e3 | 30 | { |
markrad | 3:c0556ff7b8e3 | 31 | result = HMACSHA256_ERROR; |
markrad | 3:c0556ff7b8e3 | 32 | } |
markrad | 3:c0556ff7b8e3 | 33 | else |
markrad | 3:c0556ff7b8e3 | 34 | { |
markrad | 3:c0556ff7b8e3 | 35 | result = HMACSHA256_OK; |
markrad | 3:c0556ff7b8e3 | 36 | } |
markrad | 3:c0556ff7b8e3 | 37 | } |
markrad | 3:c0556ff7b8e3 | 38 | |
markrad | 3:c0556ff7b8e3 | 39 | return result; |
markrad | 3:c0556ff7b8e3 | 40 | } |