/*
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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 <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifndef WIN32
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#include <sys/time.h>
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#include <time.h>
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#else
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#include <process.h>
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#include <winsock2.h>
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#define snprintf sprintf_s
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#endif
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#include <mqtt_protocol.h>
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#include <mosquitto.h>
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#include "client_shared.h"
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#include "pub_shared.h"
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/* Global variables for use in callbacks. See sub_client.c for an example of
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* using a struct to hold variables for use in callbacks. */
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static bool first_publish = true;
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static int last_mid = -1;
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static int last_mid_sent = -1;
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static char *line_buf = NULL;
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static int line_buf_len = 1024;
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static bool disconnect_sent = false;
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static int publish_count = 0;
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static bool ready_for_repeat = false;
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#ifdef WIN32
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static uint64_t next_publish_tv;
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static void set_repeat_time(void)
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{
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uint64_t ticks = GetTickCount64();
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next_publish_tv = ticks + cfg.repeat_delay.tv_sec*1000 + cfg.repeat_delay.tv_usec/1000;
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}
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static int check_repeat_time(void)
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{
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uint64_t ticks = GetTickCount64();
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if(ticks > next_publish_tv){
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return 1;
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}else{
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return 0;
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}
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}
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#else
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static struct timeval next_publish_tv;
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static void set_repeat_time(void)
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{
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gettimeofday(&next_publish_tv, NULL);
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next_publish_tv.tv_sec += cfg.repeat_delay.tv_sec;
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next_publish_tv.tv_usec += cfg.repeat_delay.tv_usec;
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next_publish_tv.tv_sec += next_publish_tv.tv_usec/1e6;
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next_publish_tv.tv_usec = next_publish_tv.tv_usec%1000000;
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}
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static int check_repeat_time(void)
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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if(tv.tv_sec > next_publish_tv.tv_sec){
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return 1;
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}else if(tv.tv_sec == next_publish_tv.tv_sec
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&& tv.tv_usec > next_publish_tv.tv_usec){
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return 1;
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}
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return 0;
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}
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#endif
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void my_disconnect_callback(struct mosquitto *mosq, void *obj, int rc, const mosquitto_property *properties)
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{
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UNUSED(mosq);
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UNUSED(obj);
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UNUSED(rc);
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UNUSED(properties);
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status = STATUS_DISCONNECTED;
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}
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int my_publish(struct mosquitto *mosq, int *mid, const char *topic, int payloadlen, void *payload, int qos, bool retain)
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{
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ready_for_repeat = false;
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if(cfg.protocol_version == MQTT_PROTOCOL_V5 && cfg.have_topic_alias && first_publish == false){
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return mosquitto_publish_v5(mosq, mid, NULL, payloadlen, payload, qos, retain, cfg.publish_props);
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}else{
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first_publish = false;
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return mosquitto_publish_v5(mosq, mid, topic, payloadlen, payload, qos, retain, cfg.publish_props);
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}
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}
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void my_connect_callback(struct mosquitto *mosq, void *obj, int result, int flags, const mosquitto_property *properties)
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{
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int rc = MOSQ_ERR_SUCCESS;
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UNUSED(obj);
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UNUSED(flags);
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UNUSED(properties);
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if(!result){
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switch(cfg.pub_mode){
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case MSGMODE_CMD:
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case MSGMODE_FILE:
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case MSGMODE_STDIN_FILE:
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rc = my_publish(mosq, &mid_sent, cfg.topic, cfg.msglen, cfg.message, cfg.qos, cfg.retain);
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break;
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case MSGMODE_NULL:
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rc = my_publish(mosq, &mid_sent, cfg.topic, 0, NULL, cfg.qos, cfg.retain);
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break;
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case MSGMODE_STDIN_LINE:
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status = STATUS_CONNACK_RECVD;
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break;
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}
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if(rc){
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switch(rc){
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case MOSQ_ERR_INVAL:
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err_printf(&cfg, "Error: Invalid input. Does your topic contain '+' or '#'?\n");
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break;
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case MOSQ_ERR_NOMEM:
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err_printf(&cfg, "Error: Out of memory when trying to publish message.\n");
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break;
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case MOSQ_ERR_NO_CONN:
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err_printf(&cfg, "Error: Client not connected when trying to publish.\n");
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break;
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case MOSQ_ERR_PROTOCOL:
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err_printf(&cfg, "Error: Protocol error when communicating with broker.\n");
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break;
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case MOSQ_ERR_PAYLOAD_SIZE:
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err_printf(&cfg, "Error: Message payload is too large.\n");
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break;
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case MOSQ_ERR_QOS_NOT_SUPPORTED:
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err_printf(&cfg, "Error: Message QoS not supported on broker, try a lower QoS.\n");
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break;
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}
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mosquitto_disconnect_v5(mosq, 0, cfg.disconnect_props);
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}
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}else{
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if(result){
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if(cfg.protocol_version == MQTT_PROTOCOL_V5){
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err_printf(&cfg, "%s\n", mosquitto_reason_string(result));
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}else{
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err_printf(&cfg, "%s\n", mosquitto_connack_string(result));
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}
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}
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}
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}
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void my_publish_callback(struct mosquitto *mosq, void *obj, int mid, int reason_code, const mosquitto_property *properties)
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{
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UNUSED(obj);
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UNUSED(properties);
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last_mid_sent = mid;
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if(reason_code > 127){
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err_printf(&cfg, "Warning: Publish %d failed: %s.\n", mid, mosquitto_reason_string(reason_code));
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}
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publish_count++;
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if(cfg.pub_mode == MSGMODE_STDIN_LINE){
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if(mid == last_mid){
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mosquitto_disconnect_v5(mosq, 0, cfg.disconnect_props);
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disconnect_sent = true;
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}
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}else if(publish_count < cfg.repeat_count){
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ready_for_repeat = true;
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set_repeat_time();
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}else if(disconnect_sent == false){
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mosquitto_disconnect_v5(mosq, 0, cfg.disconnect_props);
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disconnect_sent = true;
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}
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}
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int pub_shared_init(void)
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{
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line_buf = malloc(line_buf_len);
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if(!line_buf){
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err_printf(&cfg, "Error: Out of memory.\n");
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return 1;
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}
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return 0;
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}
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int pub_shared_loop(struct mosquitto *mosq)
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{
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int read_len;
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int pos;
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int rc, rc2;
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char *buf2;
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int buf_len_actual;
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int mode;
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int loop_delay = 1000;
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bool stdin_finished = false;
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if(cfg.repeat_count > 1 && (cfg.repeat_delay.tv_sec == 0 || cfg.repeat_delay.tv_usec != 0)){
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loop_delay = cfg.repeat_delay.tv_usec / 2000;
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}
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mode = cfg.pub_mode;
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if(mode == MSGMODE_STDIN_LINE){
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mosquitto_loop_start(mosq);
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stdin_finished = false;
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}
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do{
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if(mode == MSGMODE_STDIN_LINE){
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if(status == STATUS_CONNACK_RECVD){
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pos = 0;
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read_len = line_buf_len;
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while(status == STATUS_CONNACK_RECVD && fgets(&line_buf[pos], read_len, stdin)){
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buf_len_actual = strlen(line_buf);
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if(line_buf[buf_len_actual-1] == '\n'){
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line_buf[buf_len_actual-1] = '\0';
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rc2 = my_publish(mosq, &mid_sent, cfg.topic, buf_len_actual-1, line_buf, cfg.qos, cfg.retain);
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if(rc2){
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err_printf(&cfg, "Error: Publish returned %d, disconnecting.\n", rc2);
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mosquitto_disconnect_v5(mosq, MQTT_RC_DISCONNECT_WITH_WILL_MSG, cfg.disconnect_props);
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}
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break;
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}else{
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line_buf_len += 1024;
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pos += 1023;
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read_len = 1024;
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buf2 = realloc(line_buf, line_buf_len);
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if(!buf2){
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err_printf(&cfg, "Error: Out of memory.\n");
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return MOSQ_ERR_NOMEM;
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}
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line_buf = buf2;
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}
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}
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if(feof(stdin)){
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if(mid_sent == -1){
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/* Empty file */
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mosquitto_disconnect_v5(mosq, 0, cfg.disconnect_props);
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disconnect_sent = true;
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status = STATUS_DISCONNECTING;
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}else{
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last_mid = mid_sent;
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status = STATUS_WAITING;
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}
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stdin_finished = true;
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}else if(status == STATUS_DISCONNECTED){
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/* Not end of stdin, so we've lost our connection and must
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* reconnect */
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}
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}else if(status == STATUS_WAITING){
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if(last_mid_sent == last_mid && disconnect_sent == false){
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mosquitto_disconnect_v5(mosq, 0, cfg.disconnect_props);
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disconnect_sent = true;
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}
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#ifdef WIN32
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Sleep(100);
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#else
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struct timespec ts;
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ts.tv_sec = 0;
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ts.tv_nsec = 100000000;
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nanosleep(&ts, NULL);
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#endif
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}
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rc = MOSQ_ERR_SUCCESS;
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}else{
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rc = mosquitto_loop(mosq, loop_delay, 1);
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if(ready_for_repeat && check_repeat_time()){
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rc = 0;
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switch(cfg.pub_mode){
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case MSGMODE_CMD:
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case MSGMODE_FILE:
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case MSGMODE_STDIN_FILE:
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rc = my_publish(mosq, &mid_sent, cfg.topic, cfg.msglen, cfg.message, cfg.qos, cfg.retain);
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break;
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case MSGMODE_NULL:
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rc = my_publish(mosq, &mid_sent, cfg.topic, 0, NULL, cfg.qos, cfg.retain);
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break;
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case MSGMODE_STDIN_LINE:
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break;
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}
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if(rc){
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err_printf(&cfg, "Error sending repeat publish: %s", mosquitto_strerror(rc));
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}
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}
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}
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}while(rc == MOSQ_ERR_SUCCESS && stdin_finished == false);
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if(mode == MSGMODE_STDIN_LINE){
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mosquitto_loop_stop(mosq, false);
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}
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if(status == STATUS_DISCONNECTED){
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return MOSQ_ERR_SUCCESS;
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}else{
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return rc;
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}
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}
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void pub_shared_cleanup(void)
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{
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free(line_buf);
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}
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void print_usage(void)
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{
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int major, minor, revision;
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mosquitto_lib_version(&major, &minor, &revision);
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printf("mosquitto_pub is a simple mqtt client that will publish a message on a single topic and exit.\n");
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printf("mosquitto_pub version %s running on libmosquitto %d.%d.%d.\n\n", VERSION, major, minor, revision);
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printf("Usage: mosquitto_pub {[-h host] [-p port] [-u username] [-P password] -t topic | -L URL}\n");
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printf(" {-f file | -l | -n | -m message}\n");
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printf(" [-c] [-k keepalive] [-q qos] [-r] [--repeat N] [--repeat-delay time]\n");
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#ifdef WITH_SRV
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printf(" [-A bind_address] [-S]\n");
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#else
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printf(" [-A bind_address]\n");
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#endif
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printf(" [-i id] [-I id_prefix]\n");
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printf(" [-d] [--quiet]\n");
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printf(" [-M max_inflight]\n");
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printf(" [-u username [-P password]]\n");
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printf(" [--will-topic [--will-payload payload] [--will-qos qos] [--will-retain]]\n");
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#ifdef WITH_TLS
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printf(" [{--cafile file | --capath dir} [--cert file] [--key file]\n");
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printf(" [--ciphers ciphers] [--insecure]\n");
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printf(" [--tls-alpn protocol]\n");
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printf(" [--tls-engine engine] [--keyform keyform] [--tls-engine-kpass-sha1]]\n");
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#ifdef FINAL_WITH_TLS_PSK
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printf(" [--psk hex-key --psk-identity identity [--ciphers ciphers]]\n");
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#endif
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#endif
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#ifdef WITH_SOCKS
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printf(" [--proxy socks-url]\n");
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#endif
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printf(" [--property command identifier value]\n");
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printf(" [-D command identifier value]\n");
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printf(" mosquitto_pub --help\n\n");
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printf(" -A : bind the outgoing socket to this host/ip address. Use to control which interface\n");
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printf(" the client communicates over.\n");
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printf(" -d : enable debug messages.\n");
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printf(" -D : Define MQTT v5 properties. See the documentation for more details.\n");
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printf(" -f : send the contents of a file as the message.\n");
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printf(" -h : mqtt host to connect to. Defaults to localhost.\n");
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printf(" -i : id to use for this client. Defaults to mosquitto_pub_ appended with the process id.\n");
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printf(" -I : define the client id as id_prefix appended with the process id. Useful for when the\n");
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printf(" broker is using the clientid_prefixes option.\n");
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printf(" -k : keep alive in seconds for this client. Defaults to 60.\n");
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printf(" -L : specify user, password, hostname, port and topic as a URL in the form:\n");
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printf(" mqtt(s)://[username[:password]@]host[:port]/topic\n");
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printf(" -l : read messages from stdin, sending a separate message for each line.\n");
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printf(" -m : message payload to send.\n");
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printf(" -M : the maximum inflight messages for QoS 1/2..\n");
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printf(" -n : send a null (zero length) message.\n");
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printf(" -p : network port to connect to. Defaults to 1883 for plain MQTT and 8883 for MQTT over TLS.\n");
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printf(" -P : provide a password\n");
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printf(" -q : quality of service level to use for all messages. Defaults to 0.\n");
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printf(" -r : message should be retained.\n");
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printf(" -s : read message from stdin, sending the entire input as a message.\n");
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#ifdef WITH_SRV
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printf(" -S : use SRV lookups to determine which host to connect to.\n");
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#endif
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printf(" -t : mqtt topic to publish to.\n");
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printf(" -u : provide a username\n");
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printf(" -V : specify the version of the MQTT protocol to use when connecting.\n");
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printf(" Can be mqttv5, mqttv311 or mqttv31. Defaults to mqttv311.\n");
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printf(" --help : display this message.\n");
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printf(" --repeat : if publish mode is -f, -m, or -s, then repeat the publish N times.\n");
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printf(" --repeat-delay : if using --repeat, wait time seconds between publishes. Defaults to 0.\n");
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printf(" --quiet : don't print error messages.\n");
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printf(" --will-payload : payload for the client Will, which is sent by the broker in case of\n");
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printf(" unexpected disconnection. If not given and will-topic is set, a zero\n");
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printf(" length message will be sent.\n");
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printf(" --will-qos : QoS level for the client Will.\n");
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printf(" --will-retain : if given, make the client Will retained.\n");
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printf(" --will-topic : the topic on which to publish the client Will.\n");
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#ifdef WITH_TLS
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printf(" --cafile : path to a file containing trusted CA certificates to enable encrypted\n");
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printf(" communication.\n");
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printf(" --capath : path to a directory containing trusted CA certificates to enable encrypted\n");
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printf(" communication.\n");
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printf(" --cert : client certificate for authentication, if required by server.\n");
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printf(" --key : client private key for authentication, if required by server.\n");
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printf(" --keyform : keyfile type, can be either \"pem\" or \"engine\".\n");
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printf(" --ciphers : openssl compatible list of TLS ciphers to support.\n");
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printf(" --tls-version : TLS protocol version, can be one of tlsv1.3 tlsv1.2 or tlsv1.1.\n");
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printf(" Defaults to tlsv1.2 if available.\n");
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printf(" --insecure : do not check that the server certificate hostname matches the remote\n");
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printf(" hostname. Using this option means that you cannot be sure that the\n");
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printf(" remote host is the server you wish to connect to and so is insecure.\n");
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printf(" Do not use this option in a production environment.\n");
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printf(" --tls-engine : If set, enables the use of a TLS engine device.\n");
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printf(" --tls-engine-kpass-sha1 : SHA1 of the key password to be used with the selected SSL engine.\n");
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# ifdef FINAL_WITH_TLS_PSK
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printf(" --psk : pre-shared-key in hexadecimal (no leading 0x) to enable TLS-PSK mode.\n");
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printf(" --psk-identity : client identity string for TLS-PSK mode.\n");
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# endif
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#endif
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#ifdef WITH_SOCKS
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printf(" --proxy : SOCKS5 proxy URL of the form:\n");
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printf(" socks5h://[username[:password]@]hostname[:port]\n");
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printf(" Only \"none\" and \"username\" authentication is supported.\n");
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#endif
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printf("\nSee https://mosquitto.org/ for more information.\n\n");
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}
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int main(int argc, char *argv[])
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{
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struct mosquitto *mosq = NULL;
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int rc;
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mosquitto_lib_init();
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if(pub_shared_init()) return 1;
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memset(&cfg, 0, sizeof(struct mosq_config));
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rc = client_config_load(&cfg, CLIENT_PUB, argc, argv);
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if(rc){
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if(rc == 2){
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/* --help */
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print_usage();
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}else{
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fprintf(stderr, "\nUse 'mosquitto_pub --help' to see usage.\n");
|
}
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goto cleanup;
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}
|
|
#ifndef WITH_THREADING
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if(cfg.pub_mode == MSGMODE_STDIN_LINE){
|
fprintf(stderr, "Error: '-l' mode not available, threading support has not been compiled in.\n");
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goto cleanup;
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}
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#endif
|
|
if(cfg.pub_mode == MSGMODE_STDIN_FILE){
|
if(load_stdin()){
|
err_printf(&cfg, "Error loading input from stdin.\n");
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goto cleanup;
|
}
|
}else if(cfg.file_input){
|
if(load_file(cfg.file_input)){
|
err_printf(&cfg, "Error loading input file \"%s\".\n", cfg.file_input);
|
goto cleanup;
|
}
|
}
|
|
if(!cfg.topic || cfg.pub_mode == MSGMODE_NONE){
|
fprintf(stderr, "Error: Both topic and message must be supplied.\n");
|
print_usage();
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goto cleanup;
|
}
|
|
|
if(client_id_generate(&cfg)){
|
goto cleanup;
|
}
|
|
mosq = mosquitto_new(cfg.id, cfg.clean_session, NULL);
|
if(!mosq){
|
switch(errno){
|
case ENOMEM:
|
err_printf(&cfg, "Error: Out of memory.\n");
|
break;
|
case EINVAL:
|
err_printf(&cfg, "Error: Invalid id.\n");
|
break;
|
}
|
goto cleanup;
|
}
|
if(cfg.debug){
|
mosquitto_log_callback_set(mosq, my_log_callback);
|
}
|
mosquitto_connect_v5_callback_set(mosq, my_connect_callback);
|
mosquitto_disconnect_v5_callback_set(mosq, my_disconnect_callback);
|
mosquitto_publish_v5_callback_set(mosq, my_publish_callback);
|
|
if(client_opts_set(mosq, &cfg)){
|
goto cleanup;
|
}
|
|
rc = client_connect(mosq, &cfg);
|
if(rc){
|
goto cleanup;
|
}
|
|
rc = pub_shared_loop(mosq);
|
|
if(cfg.message && cfg.pub_mode == MSGMODE_FILE){
|
free(cfg.message);
|
cfg.message = NULL;
|
}
|
mosquitto_destroy(mosq);
|
mosquitto_lib_cleanup();
|
client_config_cleanup(&cfg);
|
pub_shared_cleanup();
|
|
if(rc){
|
err_printf(&cfg, "Error: %s\n", mosquitto_strerror(rc));
|
}
|
return rc;
|
|
cleanup:
|
mosquitto_lib_cleanup();
|
client_config_cleanup(&cfg);
|
pub_shared_cleanup();
|
return 1;
|
}
|
