94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/****************************************************************************
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* This file is part of the project AqHome.
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* AqHome (c) by 2025 Martin Preuss, all rights reserved.
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*
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* The license for this file can be found in the file COPYING which you
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* should have received along with this file.
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****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "aqhome/msg/mqtt/m_mqtt_suback.h"
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#include "aqhome/msg/mqtt/m_mqtt.h"
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#include <gwenhywfar/text.h>
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#include <gwenhywfar/debug.h>
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/* ------------------------------------------------------------------------------------------------
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* implementation
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* ------------------------------------------------------------------------------------------------
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*/
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AQH_MESSAGE *AQH_MqttMessageSubAck_new(uint8_t flags, uint16_t packetId, uint8_t result)
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{
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AQH_MESSAGE *msg;
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GWEN_BUFFER *buf;
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buf=GWEN_Buffer_new(0, 64, 0, 1);
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if (flags & (AQH_MQTTMSG_FLAGS_QOS2 | AQH_MQTTMSG_FLAGS_QOS1)) {
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GWEN_Buffer_AppendByte(buf, (packetId>>8) & 0xff);
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GWEN_Buffer_AppendByte(buf, packetId & 0xff);
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}
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/* payload */
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GWEN_Buffer_AppendByte(buf, result);
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msg=AQH_MqttMessage_new(AQH_MQTTMSG_MSGTYPE_SUBACK | flags,
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GWEN_Buffer_GetUsedBytes(buf),
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(const uint8_t*) GWEN_Buffer_GetStart(buf));
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GWEN_Buffer_free(buf);
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return msg;
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}
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int AQH_MqttMessageSubAck_GetPacketId(const AQH_MESSAGE *msg)
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{
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int idx;
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idx=AQH_MqttMessage_GetOffsetOfPayload(msg);
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if (idx>0) {
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int len;
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len=(int)AQH_Message_GetUsedSize(msg)-idx;
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if (len>1) {
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if (AQH_MqttMessage_GetTypeAndFlags(msg) & (AQH_MQTTMSG_FLAGS_QOS2 | AQH_MQTTMSG_FLAGS_QOS1)) {
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uint8_t *ptr;
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ptr=AQH_Message_GetMsgPointer(msg);
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return (ptr[0]<<8)+ptr[1];
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}
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}
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}
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return 0;
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}
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int AQH_MqttMessageSubAck_GetResultCode(const AQH_MESSAGE *msg)
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{
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int idx;
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idx=AQH_MqttMessage_GetOffsetOfPayload(msg);
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if (idx>0) {
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int len;
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if (AQH_MqttMessage_GetTypeAndFlags(msg) & (AQH_MQTTMSG_FLAGS_QOS2 | AQH_MQTTMSG_FLAGS_QOS1))
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idx+=2;
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len=(int)AQH_Message_GetUsedSize(msg)-idx;
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if (len>0) {
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uint8_t *ptr;
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ptr=AQH_Message_GetMsgPointer(msg);
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return *ptr;
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}
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}
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return GWEN_ERROR_BAD_DATA;
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}
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