Split library actions.c for easier discoverability.
Roger A. Light
4 years ago
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5e601c3853
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/*
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Copyright (c) 2010-2021 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 2.0
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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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https://www.eclipse.org/legal/epl-2.0/
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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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SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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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 <string.h>
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#include "mqtt_protocol.h"
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#include "net_mosq.h"
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#include "packet_mosq.h"
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#include "send_mosq.h"
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int mosquitto_subscribe(struct mosquitto *mosq, int *mid, const char *sub, int qos)
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{
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return mosquitto_subscribe_multiple(mosq, mid, 1, (char *const *const)&sub, qos, 0, NULL);
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}
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int mosquitto_subscribe_v5(struct mosquitto *mosq, int *mid, const char *sub, int qos, int options, const mosquitto_property *properties)
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{
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return mosquitto_subscribe_multiple(mosq, mid, 1, (char *const *const)&sub, qos, options, properties);
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}
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int mosquitto_subscribe_multiple(struct mosquitto *mosq, int *mid, int sub_count, char *const *const sub, int qos, int options, const mosquitto_property *properties)
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{
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const mosquitto_property *outgoing_properties = NULL;
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mosquitto_property local_property;
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int i;
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int rc;
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uint32_t remaining_length = 0;
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int slen;
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if(!mosq || !sub_count || !sub) return MOSQ_ERR_INVAL;
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if(mosq->protocol != mosq_p_mqtt5 && properties) return MOSQ_ERR_NOT_SUPPORTED;
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if(qos < 0 || qos > 2) return MOSQ_ERR_INVAL;
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if((options & 0x30) == 0x30 || (options & 0xC0) != 0) return MOSQ_ERR_INVAL;
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if(!net__is_connected(mosq)) return MOSQ_ERR_NO_CONN;
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if(properties){
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if(properties->client_generated){
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outgoing_properties = properties;
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}else{
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memcpy(&local_property, properties, sizeof(mosquitto_property));
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local_property.client_generated = true;
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local_property.next = NULL;
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outgoing_properties = &local_property;
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}
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rc = mosquitto_property_check_all(CMD_SUBSCRIBE, outgoing_properties);
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if(rc) return rc;
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}
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for(i=0; i<sub_count; i++){
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if(mosquitto_sub_topic_check(sub[i])) return MOSQ_ERR_INVAL;
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slen = (int)strlen(sub[i]);
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if(mosquitto_validate_utf8(sub[i], slen)) return MOSQ_ERR_MALFORMED_UTF8;
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remaining_length += 2+(uint32_t)slen + 1;
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}
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if(mosq->maximum_packet_size > 0){
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remaining_length += 2 + property__get_length_all(outgoing_properties);
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if(packet__check_oversize(mosq, remaining_length)){
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return MOSQ_ERR_OVERSIZE_PACKET;
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}
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}
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if(mosq->protocol == mosq_p_mqtt311 || mosq->protocol == mosq_p_mqtt31){
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options = 0;
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}
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return send__subscribe(mosq, mid, sub_count, sub, qos|options, outgoing_properties);
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}
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@ -0,0 +1,82 @@
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/*
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Copyright (c) 2010-2021 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 2.0
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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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https://www.eclipse.org/legal/epl-2.0/
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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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SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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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 <stdint.h>
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#include <string.h>
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#include "mqtt_protocol.h"
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#include "net_mosq.h"
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#include "packet_mosq.h"
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#include "property_mosq.h"
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#include "send_mosq.h"
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int mosquitto_unsubscribe(struct mosquitto *mosq, int *mid, const char *sub)
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{
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return mosquitto_unsubscribe_multiple(mosq, mid, 1, (char *const *const)&sub, NULL);
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}
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int mosquitto_unsubscribe_v5(struct mosquitto *mosq, int *mid, const char *sub, const mosquitto_property *properties)
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{
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return mosquitto_unsubscribe_multiple(mosq, mid, 1, (char *const *const)&sub, properties);
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}
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int mosquitto_unsubscribe_multiple(struct mosquitto *mosq, int *mid, int sub_count, char *const *const sub, const mosquitto_property *properties)
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{
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const mosquitto_property *outgoing_properties = NULL;
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mosquitto_property local_property;
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int rc;
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int i;
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uint32_t remaining_length = 0;
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int slen;
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if(!mosq) return MOSQ_ERR_INVAL;
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if(mosq->protocol != mosq_p_mqtt5 && properties) return MOSQ_ERR_NOT_SUPPORTED;
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if(!net__is_connected(mosq)) return MOSQ_ERR_NO_CONN;
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if(properties){
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if(properties->client_generated){
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outgoing_properties = properties;
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}else{
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memcpy(&local_property, properties, sizeof(mosquitto_property));
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local_property.client_generated = true;
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local_property.next = NULL;
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outgoing_properties = &local_property;
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}
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rc = mosquitto_property_check_all(CMD_UNSUBSCRIBE, outgoing_properties);
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if(rc) return rc;
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}
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for(i=0; i<sub_count; i++){
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if(mosquitto_sub_topic_check(sub[i])) return MOSQ_ERR_INVAL;
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slen = (int)strlen(sub[i]);
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if(mosquitto_validate_utf8(sub[i], slen)) return MOSQ_ERR_MALFORMED_UTF8;
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remaining_length += 2U + (uint32_t)slen;
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}
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if(mosq->maximum_packet_size > 0){
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remaining_length += 2U + property__get_length_all(outgoing_properties);
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if(packet__check_oversize(mosq, remaining_length)){
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return MOSQ_ERR_OVERSIZE_PACKET;
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}
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}
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return send__unsubscribe(mosq, mid, sub_count, sub, outgoing_properties);
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}
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