/*
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Copyright (c) 2009-2019 Roger Light <roger@atchoo.org>
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License v1.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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http://www.eclipse.org/legal/epl-v10.html
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and the Eclipse Distribution License is available at
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http://www.eclipse.org/org/documents/edl-v10.php.
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Contributors:
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Roger Light - initial implementation and documentation.
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*/
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#include "config.h"
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#include "mosquitto_broker_internal.h"
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#include "mqtt_protocol.h"
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#include "memory_mosq.h"
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#include "packet_mosq.h"
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#include "property_mosq.h"
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#include "util_mosq.h"
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int send__suback(struct mosquitto *context, uint16_t mid, uint32_t payloadlen, const void *payload)
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{
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struct mosquitto__packet *packet = NULL;
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int rc;
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mosquitto_property *properties = NULL;
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int proplen, varbytes;
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log__printf(NULL, MOSQ_LOG_DEBUG, "Sending SUBACK to %s", context->id);
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packet = mosquitto__calloc(1, sizeof(struct mosquitto__packet));
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if(!packet) return MOSQ_ERR_NOMEM;
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packet->command = CMD_SUBACK;
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packet->remaining_length = 2+payloadlen;
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if(context->protocol == mosq_p_mqtt5){
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proplen = property__get_length_all(properties);
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varbytes = packet__varint_bytes(proplen);
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packet->remaining_length += proplen + varbytes;
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}
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rc = packet__alloc(packet);
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if(rc){
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mosquitto__free(packet);
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return rc;
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}
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packet__write_uint16(packet, mid);
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if(context->protocol == mosq_p_mqtt5){
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/* We don't use Reason String or User Property yet. */
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property__write_all(packet, properties, true);
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}
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if(payloadlen){
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packet__write_bytes(packet, payload, payloadlen);
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}
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return packet__queue(context, packet);
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}
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