2016-03-06 22:30:17 +00:00
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/*
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2018-04-11 14:24:29 +00:00
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Copyright (c) 2009-2018 Roger Light <roger@atchoo.org>
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2016-03-06 22:30:17 +00:00
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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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2018-08-16 10:14:51 +00:00
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#include "config.h"
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2016-03-06 22:30:17 +00:00
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#include <assert.h>
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2018-02-24 11:15:09 +00:00
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#include <string.h>
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2016-03-06 22:30:17 +00:00
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2018-04-16 10:48:42 +00:00
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#ifdef WITH_BROKER
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# include "mosquitto_broker_internal.h"
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#endif
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2016-03-06 22:30:17 +00:00
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#include "mosquitto.h"
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#include "mosquitto_internal.h"
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#include "logging_mosq.h"
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#include "memory_mosq.h"
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2018-08-29 21:26:16 +00:00
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#include "mqtt_protocol.h"
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2016-03-06 22:30:17 +00:00
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#include "packet_mosq.h"
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#include "util_mosq.h"
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2018-09-27 21:05:15 +00:00
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int send__subscribe(struct mosquitto *mosq, int *mid, int topic_count, const char **topic, int topic_qos)
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2016-03-06 22:30:17 +00:00
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{
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struct mosquitto__packet *packet = NULL;
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uint32_t packetlen;
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uint16_t local_mid;
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int rc;
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2018-09-27 21:05:15 +00:00
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int i;
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2016-03-06 22:30:17 +00:00
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assert(mosq);
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assert(topic);
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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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2018-09-27 21:05:15 +00:00
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packetlen = 2;
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for(i=0; i<topic_count; i++){
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packetlen += 2+strlen(topic[i]) + 1;
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}
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2016-03-06 22:30:17 +00:00
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packet->command = SUBSCRIBE | (1<<1);
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packet->remaining_length = packetlen;
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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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/* Variable header */
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local_mid = mosquitto__mid_generate(mosq);
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if(mid) *mid = (int)local_mid;
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packet__write_uint16(packet, local_mid);
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/* Payload */
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2018-09-27 21:05:15 +00:00
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for(i=0; i<topic_count; i++){
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packet__write_string(packet, topic[i], strlen(topic[i]));
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packet__write_byte(packet, topic_qos);
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}
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2016-03-06 22:30:17 +00:00
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#ifdef WITH_BROKER
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# ifdef WITH_BRIDGE
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2018-09-27 21:05:15 +00:00
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log__printf(mosq, MOSQ_LOG_DEBUG, "Bridge %s sending SUBSCRIBE (Mid: %d, Topic: %s, QoS: %d)", mosq->id, local_mid, topic[0], topic_qos);
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2016-03-06 22:30:17 +00:00
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# endif
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#else
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2018-09-27 21:05:15 +00:00
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for(i=0; i<topic_count; i++){
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log__printf(mosq, MOSQ_LOG_DEBUG, "Client %s sending SUBSCRIBE (Mid: %d, Topic: %s, QoS: %d)", mosq->id, local_mid, topic[i], topic_qos);
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}
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2016-03-06 22:30:17 +00:00
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#endif
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return packet__queue(mosq, packet);
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}
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