Port to C027 (using AppShield and Ethernet)
Dependencies: C12832 EthernetInterface LM75B MMA7660 MQTT mbed-rtos mbed
Fork of IBMIoTClientEthernetExample by
Diff: MQTT/MQTTPacket/MQTTDeserializePublish.c
- Revision:
- 9:58eb378727d9
- Parent:
- 8:80d49dd91542
- Child:
- 10:0b5e0dfee08e
--- a/MQTT/MQTTPacket/MQTTDeserializePublish.c Wed Oct 01 13:27:35 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,107 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2014 IBM Corp. - * - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * and Eclipse Distribution License v1.0 which accompany this distribution. - * - * The Eclipse Public License is available at - * http://www.eclipse.org/legal/epl-v10.html - * and the Eclipse Distribution License is available at - * http://www.eclipse.org/org/documents/edl-v10.php. - * - * Contributors: - * Ian Craggs - initial API and implementation and/or initial documentation - *******************************************************************************/ - -#include "StackTrace.h" -#include "MQTTPacket.h" -#include <string.h> - -#define min(a, b) ((a < b) ? 1 : 0) - -/** - * Deserializes the supplied (wire) buffer into publish data - * @param dup returned integer - the MQTT dup flag - * @param qos returned integer - the MQTT QoS value - * @param retained returned integer - the MQTT retained flag - * @param packetid returned integer - the MQTT packet identifier - * @param topicName returned MQTTString - the MQTT topic in the publish - * @param payload returned byte buffer - the MQTT publish payload - * @param payloadlen returned integer - the length of the MQTT payload - * @param buf the raw buffer data, of the correct length determined by the remaining length field - * @param buflen the length in bytes of the data in the supplied buffer - * @return error code. 1 is success - */ -int MQTTDeserialize_publish(unsigned char* dup, int* qos, unsigned char* retained, unsigned short* packetid, MQTTString* topicName, - unsigned char** payload, int* payloadlen, unsigned char* buf, int buflen) -{ - MQTTHeader header = {0}; - unsigned char* curdata = buf; - unsigned char* enddata = NULL; - int rc = 0; - int mylen = 0; - - FUNC_ENTRY; - header.byte = readChar(&curdata); - if (header.bits.type != PUBLISH) - goto exit; - *dup = header.bits.dup; - *qos = header.bits.qos; - *retained = header.bits.retain; - - curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */ - enddata = curdata + mylen; - - if (!readMQTTLenString(topicName, &curdata, enddata) || - enddata - curdata < 0) /* do we have enough data to read the protocol version byte? */ - goto exit; - - if (*qos > 0) - *packetid = readInt(&curdata); - - *payloadlen = enddata - curdata; - *payload = curdata; - rc = 1; -exit: - FUNC_EXIT_RC(rc); - return rc; -} - - - -/** - * Deserializes the supplied (wire) buffer into an ack - * @param packettype returned integer - the MQTT packet type - * @param dup returned integer - the MQTT dup flag - * @param packetid returned integer - the MQTT packet identifier - * @param buf the raw buffer data, of the correct length determined by the remaining length field - * @param buflen the length in bytes of the data in the supplied buffer - * @return error code. 1 is success, 0 is failure - */ -int MQTTDeserialize_ack(unsigned char* packettype, unsigned char* dup, unsigned short* packetid, unsigned char* buf, int buflen) -{ - MQTTHeader header = {0}; - unsigned char* curdata = buf; - unsigned char* enddata = NULL; - int rc = 0; - int mylen; - - FUNC_ENTRY; - header.byte = readChar(&curdata); - *dup = header.bits.dup; - *packettype = header.bits.type; - - curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */ - enddata = curdata + mylen; - - if (enddata - curdata < 2) - goto exit; - *packetid = readInt(&curdata); - - rc = 1; -exit: - FUNC_EXIT_RC(rc); - return rc; -} -