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Publish acks

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This commit is contained in:
Ian Craggs
2014-03-30 23:14:38 +01:00
parent 87d51a560b
commit 4953d3c200
4 changed files with 126 additions and 55 deletions
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73
src/MQTTSNDeserializePublish.c
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@@ -33,7 +33,7 @@
* @param buflen the length in bytes of the data in the supplied buffer
* @return error code. 1 is success
*/
int MQTTSNDeserialize_publish(int* dup, int* qos, int* retained, int* packetid, MQTTSN_topicid* topic,
int MQTTSNDeserialize_publish(int* dup, int* qos, int* retained, unsigned short* packetid, MQTTSN_topicid* topic,
unsigned char** payload, int* payloadlen, unsigned char* buf, int buflen)
{
MQTTSNFlags flags;
@@ -85,36 +85,27 @@ exit:
return rc;
}
#if 0
/**
* Deserializes the supplied (wire) buffer into an ack
* @param type 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(int* type, int* dup, int* packetid, char* buf, int buflen)
int MQTTSNDeserialize_puback(unsigned short* topicid, unsigned short* packetid,
unsigned char* returncode, unsigned char* buf, int buflen)
{
MQTTHeader header;
char* curdata = buf;
char* enddata = NULL;
unsigned char* curdata = buf;
unsigned char* enddata = NULL;
int rc = 0;
int mylen;
int mylen = 0;
FUNC_ENTRY;
header.byte = readChar(&curdata);
*dup = header.bits.dup;
*type = header.bits.type;
curdata += (rc = MQTTPacket_decodeBuf(curdata, &mylen)); /* read remaining length */
enddata = curdata + mylen;
if (enddata - curdata < 2)
curdata += (rc = MQTTSNPacket_decodeBuf(curdata, &mylen)); /* read length */
enddata = buf + mylen;
if (enddata - curdata > buflen)
goto exit;
if (readChar(&curdata) != MQTTSN_PUBACK)
goto exit;
*topicid = readInt(&curdata);
*packetid = readInt(&curdata);
*returncode = readChar(&curdata);
rc = 1;
exit:
@@ -122,4 +113,36 @@ exit:
return rc;
}
#endif
/**
* Deserializes the supplied (wire) buffer into an ack
* @param type returned integer - the MQTT packet type
* @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 MQTTSNDeserialize_ack(unsigned char* type, unsigned short* packetid, unsigned char* buf, int buflen)
{
unsigned char* curdata = buf;
unsigned char* enddata = NULL;
int rc = 0;
int mylen = 0;
FUNC_ENTRY;
curdata += (rc = MQTTSNPacket_decodeBuf(curdata, &mylen)); /* read length */
enddata = buf + mylen;
if (enddata - curdata > buflen)
goto exit;
*type = readChar(&curdata);
if (*type != MQTTSN_PUBREL && *type != MQTTSN_PUBREC && *type != MQTTSN_PUBCOMP)
goto exit;
*packetid = readInt(&curdata);
rc = 1;
exit:
FUNC_EXIT_RC(rc);
return rc;
}