示例#1
0
int client_opts_set(struct mosquitto *mosq, struct mosq_config *cfg)
{
    int rc;

    if(cfg->will_topic && mosquitto_will_set(mosq, cfg->will_topic,
            cfg->will_payloadlen, cfg->will_payload, cfg->will_qos,
            cfg->will_retain)) {

        if(!cfg->quiet) fprintf(stderr, "Error: Problem setting will.\n");
        mosquitto_lib_cleanup();
        return 1;
    }
    if(cfg->username && mosquitto_username_pw_set(mosq, cfg->username, cfg->password)) {
        if(!cfg->quiet) fprintf(stderr, "Error: Problem setting username and password.\n");
        mosquitto_lib_cleanup();
        return 1;
    }
#ifdef WITH_TLS
    if((cfg->cafile || cfg->capath)
            && mosquitto_tls_set(mosq, cfg->cafile, cfg->capath, cfg->certfile, cfg->keyfile, NULL)) {

        if(!cfg->quiet) fprintf(stderr, "Error: Problem setting TLS options.\n");
        mosquitto_lib_cleanup();
        return 1;
    }
    if(cfg->insecure && mosquitto_tls_insecure_set(mosq, true)) {
        if(!cfg->quiet) fprintf(stderr, "Error: Problem setting TLS insecure option.\n");
        mosquitto_lib_cleanup();
        return 1;
    }
#  ifdef WITH_TLS_PSK
    if(cfg->psk && mosquitto_tls_psk_set(mosq, cfg->psk, cfg->psk_identity, NULL)) {
        if(!cfg->quiet) fprintf(stderr, "Error: Problem setting TLS-PSK options.\n");
        mosquitto_lib_cleanup();
        return 1;
    }
#  endif
    if(cfg->tls_version && mosquitto_tls_opts_set(mosq, 1, cfg->tls_version, cfg->ciphers)) {
        if(!cfg->quiet) fprintf(stderr, "Error: Problem setting TLS options.\n");
        mosquitto_lib_cleanup();
        return 1;
    }
#endif
    mosquitto_max_inflight_messages_set(mosq, cfg->max_inflight);
#ifdef WITH_SOCKS
    if(cfg->socks5_host) {
        rc = mosquitto_socks5_set(mosq, cfg->socks5_host, cfg->socks5_port, cfg->socks5_username, cfg->socks5_password);
        if(rc) {
            mosquitto_lib_cleanup();
            return rc;
        }
    }
#endif
    mosquitto_opts_set(mosq, MOSQ_OPT_PROTOCOL_VERSION, &(cfg->protocol_version));
    return MOSQ_ERR_SUCCESS;
}
示例#2
0
static int ctx_will_set(lua_State *L)
{
	ctx_t *ctx = ctx_check(L, 1);
	const char *topic = luaL_checkstring(L, 2);
	size_t payloadlen = 0;
	const void *payload = NULL;

	if (!lua_isnil(L, 3)) {
		payload = lua_tolstring(L, 3, &payloadlen);
	};

	int qos = luaL_optinteger(L, 4, 0);
	bool retain = lua_toboolean(L, 5);

	int rc = mosquitto_will_set(ctx->mosq, topic, payloadlen, payload, qos, retain);
	return mosq__pstatus(L, rc);
}
示例#3
0
/* {{{ Mosquitto\Client::setWill() */
PHP_METHOD(Mosquitto_Client, setWill)
{
	mosquitto_client_object *object;
	int topic_len, payload_len, retval;
	long qos;
	zend_bool retain;
	char *topic, *payload;

	PHP_MOSQUITTO_ERROR_HANDLING();
	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sslb",
				&topic, &topic_len, &payload, &payload_len, &qos, &retain) == FAILURE) {
		PHP_MOSQUITTO_RESTORE_ERRORS();
		return;
	}
	PHP_MOSQUITTO_RESTORE_ERRORS();

	object = (mosquitto_client_object *) mosquitto_client_object_get(getThis() TSRMLS_CC);
	retval = mosquitto_will_set(object->client, topic, payload_len, (void *) payload, qos, retain);

	php_mosquitto_handle_errno(retval, errno TSRMLS_CC);
}
示例#4
0
int mosquittopp::will_set(const char *topic, int payloadlen, const void *payload, int qos, bool retain)
{
	return mosquitto_will_set(m_mosq, topic, payloadlen, payload, qos, retain);
}
示例#5
0
int main(int argc, char *argv[])
{
	char *id = NULL;
	char *id_prefix = NULL;
	int i;
	char *host = "localhost";
	int port = 1883;
	int keepalive = 60;
	char buf[1024];
	bool debug = false;
	struct mosquitto *mosq = NULL;
	int rc;
	int rc2;
	char hostname[256];
	char err[1024];
	int len;

	char *will_payload = NULL;
	long will_payloadlen = 0;
	int will_qos = 0;
	bool will_retain = false;
	char *will_topic = NULL;

	char *cafile = NULL;
	char *capath = NULL;
	char *certfile = NULL;
	char *keyfile = NULL;

	char *psk = NULL;
	char *psk_identity = NULL;

	for(i=1; i<argc; i++){
		if(!strcmp(argv[i], "-p") || !strcmp(argv[i], "--port")){
			if(i==argc-1){
				fprintf(stderr, "Error: -p argument given but no port specified.\n\n");
				print_usage();
				return 1;
			}else{
				port = atoi(argv[i+1]);
				if(port<1 || port>65535){
					fprintf(stderr, "Error: Invalid port given: %d\n", port);
					print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--cafile")){
			if(i==argc-1){
				fprintf(stderr, "Error: --cafile argument given but no file specified.\n\n");
				print_usage();
				return 1;
			}else{
				cafile = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--capath")){
			if(i==argc-1){
				fprintf(stderr, "Error: --capath argument given but no directory specified.\n\n");
				print_usage();
				return 1;
			}else{
				capath = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--cert")){
			if(i==argc-1){
				fprintf(stderr, "Error: --cert argument given but no file specified.\n\n");
				print_usage();
				return 1;
			}else{
				certfile = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-d") || !strcmp(argv[i], "--debug")){
			debug = true;
		}else if(!strcmp(argv[i], "-f") || !strcmp(argv[i], "--file")){
			if(mode != MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				print_usage();
				return 1;
			}else if(i==argc-1){
				fprintf(stderr, "Error: -f argument given but no file specified.\n\n");
				print_usage();
				return 1;
			}else{
				if(load_file(argv[i+1])) return 1;
			}
			i++;
		}else if(!strcmp(argv[i], "--help")){
			print_usage();
			return 0;
		}else if(!strcmp(argv[i], "-h") || !strcmp(argv[i], "--host")){
			if(i==argc-1){
				fprintf(stderr, "Error: -h argument given but no host specified.\n\n");
				print_usage();
				return 1;
			}else{
				host = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-i") || !strcmp(argv[i], "--id")){
			if(id_prefix){
				fprintf(stderr, "Error: -i and -I argument cannot be used together.\n\n");
				print_usage();
				return 1;
			}
			if(i==argc-1){
				fprintf(stderr, "Error: -i argument given but no id specified.\n\n");
				print_usage();
				return 1;
			}else{
				id = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-I") || !strcmp(argv[i], "--id-prefix")){
			if(id){
				fprintf(stderr, "Error: -i and -I argument cannot be used together.\n\n");
				print_usage();
				return 1;
			}
			if(i==argc-1){
				fprintf(stderr, "Error: -I argument given but no id prefix specified.\n\n");
				print_usage();
				return 1;
			}else{
				id_prefix = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--key")){
			if(i==argc-1){
				fprintf(stderr, "Error: --key argument given but no file specified.\n\n");
				print_usage();
				return 1;
			}else{
				keyfile = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-l") || !strcmp(argv[i], "--stdin-line")){
			if(mode != MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				print_usage();
				return 1;
			}else{
				mode = MSGMODE_STDIN_LINE;
			}
		}else if(!strcmp(argv[i], "-m") || !strcmp(argv[i], "--message")){
			if(mode != MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				print_usage();
				return 1;
			}else if(i==argc-1){
				fprintf(stderr, "Error: -m argument given but no message specified.\n\n");
				print_usage();
				return 1;
			}else{
				message = argv[i+1];
				msglen = strlen(message);
				mode = MSGMODE_CMD;
			}
			i++;
		}else if(!strcmp(argv[i], "-n") || !strcmp(argv[i], "--null-message")){
			if(mode != MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				print_usage();
				return 1;
			}else{
				mode = MSGMODE_NULL;
			}
		}else if(!strcmp(argv[i], "--psk")){
			if(i==argc-1){
				fprintf(stderr, "Error: --psk argument given but no key specified.\n\n");
				print_usage();
				return 1;
			}else{
				psk = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--psk-identity")){
			if(i==argc-1){
				fprintf(stderr, "Error: --psk-identity argument given but no identity specified.\n\n");
				print_usage();
				return 1;
			}else{
				psk_identity = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-q") || !strcmp(argv[i], "--qos")){
			if(i==argc-1){
				fprintf(stderr, "Error: -q argument given but no QoS specified.\n\n");
				print_usage();
				return 1;
			}else{
				qos = atoi(argv[i+1]);
				if(qos<0 || qos>2){
					fprintf(stderr, "Error: Invalid QoS given: %d\n", qos);
					print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--quiet")){
			quiet = true;
		}else if(!strcmp(argv[i], "-r") || !strcmp(argv[i], "--retain")){
			retain = 1;
		}else if(!strcmp(argv[i], "-s") || !strcmp(argv[i], "--stdin-file")){
			if(mode != MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				print_usage();
				return 1;
			}else{
				if(load_stdin()) return 1;
			}
		}else if(!strcmp(argv[i], "-t") || !strcmp(argv[i], "--topic")){
			if(i==argc-1){
				fprintf(stderr, "Error: -t argument given but no topic specified.\n\n");
				print_usage();
				return 1;
			}else{
				topic = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-u") || !strcmp(argv[i], "--username")){
			if(i==argc-1){
				fprintf(stderr, "Error: -u argument given but no username specified.\n\n");
				print_usage();
				return 1;
			}else{
				username = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-P") || !strcmp(argv[i], "--pw")){
			if(i==argc-1){
				fprintf(stderr, "Error: -P argument given but no password specified.\n\n");
				print_usage();
				return 1;
			}else{
				password = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--will-payload")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-payload argument given but no will payload specified.\n\n");
				print_usage();
				return 1;
			}else{
				will_payload = argv[i+1];
				will_payloadlen = strlen(will_payload);
			}
			i++;
		}else if(!strcmp(argv[i], "--will-qos")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-qos argument given but no will QoS specified.\n\n");
				print_usage();
				return 1;
			}else{
				will_qos = atoi(argv[i+1]);
				if(will_qos < 0 || will_qos > 2){
					fprintf(stderr, "Error: Invalid will QoS %d.\n\n", will_qos);
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--will-retain")){
			will_retain = true;
		}else if(!strcmp(argv[i], "--will-topic")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-topic argument given but no will topic specified.\n\n");
				print_usage();
				return 1;
			}else{
				will_topic = argv[i+1];
			}
			i++;
		}else{
			fprintf(stderr, "Error: Unknown option '%s'.\n",argv[i]);
			print_usage();
			return 1;
		}
	}

	if(!topic || mode == MSGMODE_NONE){
		fprintf(stderr, "Error: Both topic and message must be supplied.\n");
		print_usage();
		return 1;
	}

	if(will_payload && !will_topic){
		fprintf(stderr, "Error: Will payload given, but no will topic given.\n");
		print_usage();
		return 1;
	}
	if(will_retain && !will_topic){
		fprintf(stderr, "Error: Will retain given, but no will topic given.\n");
		print_usage();
		return 1;
	}
	if(password && !username){
		if(!quiet) fprintf(stderr, "Warning: Not using password since username not set.\n");
	}
	if((certfile && !keyfile) || (keyfile && !certfile)){
		fprintf(stderr, "Error: Both certfile and keyfile must be provided if one of them is.\n");
		print_usage();
		return 1;
	}
	if((cafile || capath) && psk){
		if(!quiet) fprintf(stderr, "Error: Only one of --psk or --cafile/--capath may be used at once.\n");
		return 1;
	}
	if(psk && !psk_identity){
		if(!quiet) fprintf(stderr, "Error: --psk-identity required if --psk used.\n");
		return 1;
	}

	mosquitto_lib_init();

	if(id_prefix){
		id = malloc(strlen(id_prefix)+10);
		if(!id){
			if(!quiet) fprintf(stderr, "Error: Out of memory.\n");
			mosquitto_lib_cleanup();
			return 1;
		}
		snprintf(id, strlen(id_prefix)+10, "%s%d", id_prefix, getpid());
	}else if(!id){
		hostname[0] = '\0';
		gethostname(hostname, 256);
		hostname[255] = '\0';
		len = strlen("mosqpub/-") + 6 + strlen(hostname);
		id = malloc(len);
		if(!id){
			if(!quiet) fprintf(stderr, "Error: Out of memory.\n");
			mosquitto_lib_cleanup();
			return 1;
		}
		snprintf(id, len, "mosqpub/%d-%s", getpid(), hostname);
		if(strlen(id) > MOSQ_MQTT_ID_MAX_LENGTH){
			/* Enforce maximum client id length of 23 characters */
			id[MOSQ_MQTT_ID_MAX_LENGTH] = '\0';
		}
	}

	mosq = mosquitto_new(id, true, NULL);
	if(!mosq){
		switch(errno){
			case ENOMEM:
				if(!quiet) fprintf(stderr, "Error: Out of memory.\n");
				break;
			case EINVAL:
				if(!quiet) fprintf(stderr, "Error: Invalid id.\n");
				break;
		}
		mosquitto_lib_cleanup();
		return 1;
	}
	if(debug){
		mosquitto_log_callback_set(mosq, my_log_callback);
	}
	if(will_topic && mosquitto_will_set(mosq, will_topic, will_payloadlen, will_payload, will_qos, will_retain)){
		if(!quiet) fprintf(stderr, "Error: Problem setting will.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	if(username && mosquitto_username_pw_set(mosq, username, password)){
		if(!quiet) fprintf(stderr, "Error: Problem setting username and password.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	if((cafile || capath) && mosquitto_tls_set(mosq, cafile, capath, certfile, keyfile, NULL)){
		if(!quiet) fprintf(stderr, "Error: Problem setting TLS options.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	if(psk && mosquitto_tls_psk_set(mosq, psk, psk_identity, NULL)){
		if(!quiet) fprintf(stderr, "Error: Problem setting TLS-PSK options.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	mosquitto_connect_callback_set(mosq, my_connect_callback);
	mosquitto_disconnect_callback_set(mosq, my_disconnect_callback);
	mosquitto_publish_callback_set(mosq, my_publish_callback);

	rc = mosquitto_connect(mosq, host, port, keepalive);
	if(rc){
		if(!quiet){
			if(rc == MOSQ_ERR_ERRNO){
#ifndef WIN32
				strerror_r(errno, err, 1024);
#else
				FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, errno, 0, (LPTSTR)&err, 1024, NULL);
#endif
				fprintf(stderr, "Error: %s\n", err);
			}else{
				fprintf(stderr, "Unable to connect (%d).\n", rc);
			}
		}
		mosquitto_lib_cleanup();
		return rc;
	}

	if(mode == MSGMODE_STDIN_LINE){
		mosquitto_loop_start(mosq);
	}

	do{
		if(mode == MSGMODE_STDIN_LINE){
			if(status == STATUS_CONNACK_RECVD){
				if(fgets(buf, 1024, stdin)){
					buf[strlen(buf)-1] = '\0';
					rc2 = mosquitto_publish(mosq, &mid_sent, topic, strlen(buf), buf, qos, retain);
					if(rc2){
						if(!quiet) fprintf(stderr, "Error: Publish returned %d, disconnecting.\n", rc2);
						mosquitto_disconnect(mosq);
					}
				}else if(feof(stdin)){
					last_mid = mid_sent;
					status = STATUS_WAITING;
				}
			}else if(status == STATUS_WAITING){
#ifdef WIN32
				Sleep(1000);
#else
				usleep(1000000);
#endif
			}
			rc = MOSQ_ERR_SUCCESS;
		}else{
			rc = mosquitto_loop(mosq, -1, 1);
		}
	}while(rc == MOSQ_ERR_SUCCESS && connected);

	if(mode == MSGMODE_STDIN_LINE){
		mosquitto_loop_stop(mosq, false);
	}

	if(message && mode == MSGMODE_FILE){
		free(message);
	}
	mosquitto_destroy(mosq);
	mosquitto_lib_cleanup();

	if(rc){
		if(rc == MOSQ_ERR_ERRNO){
			fprintf(stderr, "Error: %s\n", strerror(errno));
		}else{
			fprintf(stderr, "Error: %s\n", mosquitto_strerror(rc));
		}
	}
	return rc;
}
示例#6
0
void /*PORT_NAME*/_setup() {
	char *id = NULL;
	char *id_prefix = NULL;
	int i;
	char *host = "/*HOST_ADDRESS*/";
	int port = /*PORT_NUMBER*/;
	int keepalive = 60;
	bool clean_session = true;
	bool debug = false;
	int rc, rc2;
	char hostname[21];
	char err[1024];
	
	uint8_t *will_payload = NULL;
	long will_payloadlen = 0;
	int will_qos = 0;
	bool will_retain = false;
	char *will_topic = NULL;

        /*MULTI_TOPIC_INIT*/

        /*TRACE_LEVEL_1*/printf("[/*PORT_NAME*/] Initialization MQTT at %s:%i\n", host, port);
	
	if(clean_session == false && (id_prefix || !id)){
		/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: You must provide a client id if you are using the -c option.\n");
		return 1;
	}
	if(id_prefix){
		id = malloc(strlen(id_prefix)+10);
		if(!id){
			/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: Out of memory.\n");
			return 1;
		}
		snprintf(id, strlen(id_prefix)+10, "%s%d", id_prefix, getpid());
	}else if(!id){
		id = malloc(30);
		if(!id){
			/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: Out of memory.\n");
			return 1;
		}
		memset(hostname, 0, 21);
		gethostname(hostname, 20);
		snprintf(id, 23, "mosq_sub_%d_%s", getpid(), hostname);
	}

	if(will_payload && !will_topic){
		/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: Will payload given, but no will topic given.\n");
		return 1;
	}
	if(will_retain && !will_topic){
		/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: Will retain given, but no will topic given.\n");
		return 1;
	}
	if(/*PORT_NAME*/_password && !/*PORT_NAME*/_username){
		/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Warning: Not using password since username not set.\n");
	}
	mosquitto_lib_init();
	/*PORT_NAME*/_mosq = mosquitto_new(id, NULL);
	if(!/*PORT_NAME*/_mosq){
		/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: Out of memory.\n");
		return 1;
	}
	if(will_topic && mosquitto_will_set(/*PORT_NAME*/_mosq, true, will_topic, will_payloadlen, will_payload, will_qos, will_retain)){
		/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: Problem setting will.\n");
		return 1;
	}
	if(/*PORT_NAME*/_username && mosquitto_username_pw_set(/*PORT_NAME*/_mosq, /*PORT_NAME*/_username, /*PORT_NAME*/_password)){
		/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: Problem setting username and password.\n");
		return 1;
	}
	mosquitto_connect_callback_set(/*PORT_NAME*/_mosq, /*PORT_NAME*/_connect_callback);
	mosquitto_message_callback_set(/*PORT_NAME*/_mosq, /*PORT_NAME*/_message_callback);
	
	/*TRACE_LEVEL_1*/mosquitto_subscribe_callback_set(/*PORT_NAME*/_mosq, /*PORT_NAME*/_subscribe_callback);

	rc = mosquitto_connect(/*PORT_NAME*/_mosq, host, port, keepalive, clean_session);
	if(rc){
		/*TRACE_LEVEL_1*/if(rc == MOSQ_ERR_ERRNO){
			/*TRACE_LEVEL_1*/strerror_r(errno, err, 1024);
			/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Error: %s\n", err);
		/*TRACE_LEVEL_1*/}else{
			/*TRACE_LEVEL_1*/fprintf(stderr, "[/*PORT_NAME*/] Unable to connect (%d).\n", rc);
		/*TRACE_LEVEL_1*/}
		//return rc;
	}

}
示例#7
0
/*
 * ##########################
 * Main Function
 * ##########################
 */
int main(int argc, char *argv[])
{
	/* program setup variable */
	struct mosquitto *mosq = NULL;
	struct mqtt_userdata *ud = NULL;
	unsigned int max_inflight = 20;
	bool debug = false;
	char buf[MQTT_BUFSIZE];
	char err[MQTT_ERR_BUFSIZE];
	/* client id */
	char id[MQTT_ID_LEN];
	char id_prefix[MQTT_ID_LEN];
	char hostname[MQTT_HOSTNAME_BUFSIZE];
	/* broker variable */
	char host[MQTT_IP_LEN] = "127.0.0.1";
	int port = 1883;
	int keepalive = 60;
	/* will information */
	char *will_topic = NULL;
	long will_payloadlen = 0;
	char *will_payload = NULL;
	int will_qos = 0;
	bool will_retain = false;
	/* temp variable */
	int i;
	int rc;
	int rc2;

	/* initialized program and user data structure */
	ud = malloc(sizeof(struct mqtt_userdata));
	memset(ud, 0, sizeof(struct mqtt_userdata));
	ud->last_mid = -1;
	ud->connected = true;
	memset(id, '\0', sizeof(id));
	memset(id_prefix, '\0', sizeof(id_prefix));
	ud->qos = 2;

	/* get option */
	for(i=1; i<argc; i++){
		if(!strcmp(argv[i], "-p") || !strcmp(argv[i], "--port")){
			if(i==argc-1){
				fprintf(stderr, "Error: -p argument given but no port specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				port = atoi(argv[i+1]);
				if(port<1 || port>65535){
					fprintf(stderr, "Error: Invalid port given: %d\n", port);
					mqtt_print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-d") || !strcmp(argv[i], "--debug")){
			debug = true;
		}else if(!strcmp(argv[i], "-f") || !strcmp(argv[i], "--file")){
			if(ud->mode != MQTT_MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				mqtt_print_usage();
				return 1;
			}else if(i==argc-1){
				fprintf(stderr, "Error: -f argument given but no file specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				if(mqtt_load_file(argv[i+1], ud)) return 1;
			}
			i++;
		}else if(!strcmp(argv[i], "--help")){
			mqtt_print_usage();
			return 0;
		}else if(!strcmp(argv[i], "-h") || !strcmp(argv[i], "--host")){
			if(i==argc-1){
				fprintf(stderr, "Error: -h argument given but no host specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				if (strlen(argv[i+1]) >= MQTT_IP_LEN) {
					fprintf(stderr, "Error: max length of ip is %d.\n\n", MQTT_IP_LEN);
					mqtt_print_usage();
				} else {
					memset(host, '\0', sizeof(host));
					strcpy(host, argv[i+1]);
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-i") || !strcmp(argv[i], "--id")){
			if(strlen(id_prefix) != 0){
				fprintf(stderr, "Error: -i and -I argument cannot be used together.\n\n");
				mqtt_print_usage();
				return 1;
			}
			if(i==argc-1){
				fprintf(stderr, "Error: -i argument given but no id specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				if (strlen(argv[i+1]) >= MOSQ_MQTT_ID_MAX_LENGTH) {
					fprintf(stderr, "Error: max length of client id is %d.\n\n", MOSQ_MQTT_ID_MAX_LENGTH);
					mqtt_print_usage();
				} else {
					strcpy(id, argv[i+1]);
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-I") || !strcmp(argv[i], "--id-prefix")){
			if(strlen(id) != 0){
				fprintf(stderr, "Error: -i and -I argument cannot be used together.\n\n");
				mqtt_print_usage();
				return 1;
			}
			if(i==argc-1){
				fprintf(stderr, "Error: -I argument given but no id prefix specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				if (strlen(argv[i+1]) >= MOSQ_MQTT_ID_MAX_LENGTH) {
					fprintf(stderr, "Error: max length of client id is %d.\n\n", MOSQ_MQTT_ID_MAX_LENGTH);
					mqtt_print_usage();
				} else {
					strcpy(id_prefix, argv[i+1]);
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-l") || !strcmp(argv[i], "--stdin-line")){
			if(ud->mode != MQTT_MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->mode = MQTT_MSGMODE_STDIN_LINE;
			}
		}else if(!strcmp(argv[i], "-m") || !strcmp(argv[i], "--message")){
			if(ud->mode != MQTT_MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				mqtt_print_usage();
				return 1;
			}else if(i==argc-1){
				fprintf(stderr, "Error: -m argument given but no message specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->message = argv[i+1];
				ud->msglen = strlen(ud->message);
				ud->mode = MQTT_MSGMODE_CMD;
			}
			i++;
		}else if(!strcmp(argv[i], "-M")){
			if(i==argc-1){
				fprintf(stderr, "Error: -M argument given but max_inflight not specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				max_inflight = atoi(argv[i+1]);
			}
			i++;
		}else if(!strcmp(argv[i], "-n") || !strcmp(argv[i], "--null-message")){
			if(ud->mode != MQTT_MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->mode = MQTT_MSGMODE_NULL;
			}
		}else if(!strcmp(argv[i], "-q") || !strcmp(argv[i], "--qos")){
			if(i==argc-1){
				fprintf(stderr, "Error: -q argument given but no QoS specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->qos = atoi(argv[i+1]);
				if(ud->qos<0 || ud->qos>2){
					fprintf(stderr, "Error: Invalid QoS given: %d\n", ud->qos);
					mqtt_print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--quiet")){
			ud->quiet = true;
		}else if(!strcmp(argv[i], "-r") || !strcmp(argv[i], "--retain")){
			ud->retain = 1;
		}else if(!strcmp(argv[i], "-s") || !strcmp(argv[i], "--stdin-file")){
			if(ud->mode != MQTT_MSGMODE_NONE){
				fprintf(stderr, "Error: Only one type of message can be sent at once.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				if(mqtt_load_stdin(ud)) return 1;
			}
		}else if(!strcmp(argv[i], "-t") || !strcmp(argv[i], "--topic")){
			if(i==argc-1){
				fprintf(stderr, "Error: -t argument given but no topic specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->topic = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-u") || !strcmp(argv[i], "--username")){
			if(i==argc-1){
				fprintf(stderr, "Error: -u argument given but no username specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->username = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-P") || !strcmp(argv[i], "--pw")){
			if(i==argc-1){
				fprintf(stderr, "Error: -P argument given but no password specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->password = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--will-payload")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-payload argument given but no will payload specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				will_payload = argv[i+1];
				will_payloadlen = strlen(will_payload);
			}
			i++;
		}else if(!strcmp(argv[i], "--will-qos")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-qos argument given but no will QoS specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				will_qos = atoi(argv[i+1]);
				if(will_qos < 0 || will_qos > 2){
					fprintf(stderr, "Error: Invalid will QoS %d.\n\n", will_qos);
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--will-retain")){
			will_retain = true;
		}else if(!strcmp(argv[i], "--will-topic")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-topic argument given but no will topic specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				will_topic = argv[i+1];
			}
			i++;
		}else{
			fprintf(stderr, "Error: Unknown option '%s'.\n",argv[i]);
			mqtt_print_usage();
			return 1;
		}
	}

	/* verify necessary variable */
	if(!ud->topic || ud->mode == MQTT_MSGMODE_NONE){
		fprintf(stderr, "Error: Both topic and message must be supplied.\n");
		mqtt_print_usage();
		return 1;
	}
	if(will_payload && !will_topic){
		fprintf(stderr, "Error: Will payload given, but no will topic given.\n");
		mqtt_print_usage();
		return 1;
	}
	if(will_retain && !will_topic){
		fprintf(stderr, "Error: Will retain given, but no will topic given.\n");
		mqtt_print_usage();
		return 1;
	}
	if(ud->password && !ud->username){
		if(!ud->quiet) fprintf(stderr, "Warning: Not using password since username not set.\n");
	}

	/* init mosquitto library */
	mosquitto_lib_init();

	/* setup client id */
	if(strlen(id_prefix) != 0){
		snprintf(id, sizeof(id), "%s%d", id_prefix, getpid());
	}else if(strlen(id) == 0){
		memset(hostname, '\0', sizeof(hostname));
		gethostname(hostname, sizeof(hostname));
		snprintf(id, sizeof(id), "mosqub/%d-%s", getpid(), hostname);
	}
	if(strlen(id) > MOSQ_MQTT_ID_MAX_LENGTH){
		/* Enforce maximum client id length of 23 characters */
		id[MOSQ_MQTT_ID_MAX_LENGTH] = '\0';
	}

	/* start mosquitto */
	mosq = mosquitto_new(id, true, ud);
	if(!mosq){
		if(!ud->quiet) fprintf(stderr, "Error: %s\n", strerror(errno));
		mosquitto_lib_cleanup();
		return 1;
	}

	/* setup mosquitto */
	if(debug){
		mosquitto_log_callback_set(mosq, mqtt_log_callback);
	}
	if(will_topic && mosquitto_will_set(mosq, will_topic, will_payloadlen, will_payload, will_qos, will_retain)){
		if(!ud->quiet) fprintf(stderr, "Error: Problem setting will.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	if(ud->username && mosquitto_username_pw_set(mosq, ud->username, ud->password)){
		if(!ud->quiet) fprintf(stderr, "Error: Problem setting username and password.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	mosquitto_max_inflight_messages_set(mosq, max_inflight);
	mosquitto_connect_callback_set(mosq, mqtt_connect_callback);
	mosquitto_disconnect_callback_set(mosq, mqtt_disconnect_callback);
	mosquitto_publish_callback_set(mosq, mqtt_publish_callback);

	/* connect mosquitto */
	rc = mosquitto_connect(mosq, host, port, keepalive);
	if(rc){
		if(!ud->quiet){
			if(rc == MOSQ_ERR_ERRNO){
#ifndef WIN32
				strerror_r(errno, err, sizeof(err));
#else
				FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, errno, 0, (LPTSTR)&err, sizeof(err), NULL);
#endif
				fprintf(stderr, "Error: %s\n", err);
			}else{
				fprintf(stderr, "Unable to connect (%d: %s).\n", rc, mosquitto_strerror(rc));
			}
		}
		mosquitto_lib_cleanup();
		return rc;
	}

	/* publish mosquitto mqtt message BASED ON DIFFERENT message mode */
	if(ud->mode == MQTT_MSGMODE_STDIN_LINE){
		mosquitto_loop_start(mosq);
	}

	do{
		if(ud->mode == MQTT_MSGMODE_STDIN_LINE){
			if(ud->status == MQTT_STATUS_CONNACK_RECVD){
				if(fgets(buf, sizeof(buf), stdin)){
					buf[strlen(buf)-1] = '\0';
					rc2 = mosquitto_publish(mosq, &ud->mid_sent, ud->topic, strlen(buf), buf, ud->qos, ud->retain);
					if(rc2){
						if(!ud->quiet) fprintf(stderr, "Error: Publish returned %d, disconnecting.\n", rc2);
						mosquitto_disconnect(mosq);
					}
				}else if(feof(stdin)){
					ud->last_mid = ud->mid_sent;
					ud->status = MQTT_STATUS_WAITING;
				}
			}else if(ud->status == MQTT_STATUS_WAITING){
#ifdef WIN32
				Sleep(1000);
#else
				usleep(1000000);
#endif
			}
			rc = MOSQ_ERR_SUCCESS;
		}else{
			rc = mosquitto_loop(mosq, -1, 1);
		}
	}while(rc == MOSQ_ERR_SUCCESS && ud->connected);

	if(ud->mode == MQTT_MSGMODE_STDIN_LINE){
		mosquitto_loop_stop(mosq, false);
	}

	/* free mosquitto */
	mosquitto_destroy(mosq);
	mosquitto_lib_cleanup();
	mqtt_userdata_free(ud);

	return rc;
}
示例#8
0
int main(int argc, char *argv[])
{
	char *id = NULL;
	char *id_prefix = NULL;
	int i;
	char *host = "localhost";
	int port = 1883;
	int keepalive = 60;
	bool clean_session = true;
	bool debug = false;
	struct mosquitto *mosq = NULL;
	int rc;
	char hostname[256];
	char err[1024];
	struct userdata ud;
	int len;
	
	char *will_payload = NULL;
	long will_payloadlen = 0;
	int will_qos = 0;
	bool will_retain = false;
	char *will_topic = NULL;

	char *cafile = NULL;
	char *capath = NULL;
	char *certfile = NULL;
	char *keyfile = NULL;

	char *psk = NULL;
	char *psk_identity = NULL;

	memset(&ud, 0, sizeof(struct userdata));

	for(i=1; i<argc; i++){
		if(!strcmp(argv[i], "-p") || !strcmp(argv[i], "--port")){
			if(i==argc-1){
				fprintf(stderr, "Error: -p argument given but no port specified.\n\n");
				print_usage();
				return 1;
			}else{
				port = atoi(argv[i+1]);
				if(port<1 || port>65535){
					fprintf(stderr, "Error: Invalid port given: %d\n", port);
					print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-c") || !strcmp(argv[i], "--disable-clean-session")){
			clean_session = false;
		}else if(!strcmp(argv[i], "--cafile")){
			if(i==argc-1){
				fprintf(stderr, "Error: --cafile argument given but no file specified.\n\n");
				print_usage();
				return 1;
			}else{
				cafile = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--capath")){
			if(i==argc-1){
				fprintf(stderr, "Error: --capath argument given but no directory specified.\n\n");
				print_usage();
				return 1;
			}else{
				capath = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--cert")){
			if(i==argc-1){
				fprintf(stderr, "Error: --cert argument given but no file specified.\n\n");
				print_usage();
				return 1;
			}else{
				certfile = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-d") || !strcmp(argv[i], "--debug")){
			debug = true;
		}else if(!strcmp(argv[i], "--help")){
			print_usage();
			return 0;
		}else if(!strcmp(argv[i], "-h") || !strcmp(argv[i], "--host")){
			if(i==argc-1){
				fprintf(stderr, "Error: -h argument given but no host specified.\n\n");
				print_usage();
				return 1;
			}else{
				host = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-i") || !strcmp(argv[i], "--id")){
			if(id_prefix){
				fprintf(stderr, "Error: -i and -I argument cannot be used together.\n\n");
				print_usage();
				return 1;
			}
			if(i==argc-1){
				fprintf(stderr, "Error: -i argument given but no id specified.\n\n");
				print_usage();
				return 1;
			}else{
				id = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-I") || !strcmp(argv[i], "--id-prefix")){
			if(id){
				fprintf(stderr, "Error: -i and -I argument cannot be used together.\n\n");
				print_usage();
				return 1;
			}
			if(i==argc-1){
				fprintf(stderr, "Error: -I argument given but no id prefix specified.\n\n");
				print_usage();
				return 1;
			}else{
				id_prefix = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-k") || !strcmp(argv[i], "--keepalive")){
			if(i==argc-1){
				fprintf(stderr, "Error: -k argument given but no keepalive specified.\n\n");
				print_usage();
				return 1;
			}else{
				keepalive = atoi(argv[i+1]);
				if(keepalive>65535){
					fprintf(stderr, "Error: Invalid keepalive given: %d\n", keepalive);
					print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--key")){
			if(i==argc-1){
				fprintf(stderr, "Error: --key argument given but no file specified.\n\n");
				print_usage();
				return 1;
			}else{
				keyfile = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--psk")){
			if(i==argc-1){
				fprintf(stderr, "Error: --psk argument given but no key specified.\n\n");
				print_usage();
				return 1;
			}else{
				psk = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--psk-identity")){
			if(i==argc-1){
				fprintf(stderr, "Error: --psk-identity argument given but no identity specified.\n\n");
				print_usage();
				return 1;
			}else{
				psk_identity = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-q") || !strcmp(argv[i], "--qos")){
			if(i==argc-1){
				fprintf(stderr, "Error: -q argument given but no QoS specified.\n\n");
				print_usage();
				return 1;
			}else{
				ud.topic_qos = atoi(argv[i+1]);
				if(ud.topic_qos<0 || ud.topic_qos>2){
					fprintf(stderr, "Error: Invalid QoS given: %d\n", ud.topic_qos);
					print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--quiet")){
			ud.quiet = true;
		}else if(!strcmp(argv[i], "-t") || !strcmp(argv[i], "--topic")){
			if(i==argc-1){
				fprintf(stderr, "Error: -t argument given but no topic specified.\n\n");
				print_usage();
				return 1;
			}else{
				ud.topic_count++;
				ud.topics = realloc(ud.topics, ud.topic_count*sizeof(char *));
				ud.topics[ud.topic_count-1] = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-u") || !strcmp(argv[i], "--username")){
			if(i==argc-1){
				fprintf(stderr, "Error: -u argument given but no username specified.\n\n");
				print_usage();
				return 1;
			}else{
				ud.username = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-v") || !strcmp(argv[i], "--verbose")){
			ud.verbose = 1;
		}else if(!strcmp(argv[i], "-P") || !strcmp(argv[i], "--pw")){
			if(i==argc-1){
				fprintf(stderr, "Error: -P argument given but no password specified.\n\n");
				print_usage();
				return 1;
			}else{
				ud.password = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--will-payload")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-payload argument given but no will payload specified.\n\n");
				print_usage();
				return 1;
			}else{
				will_payload = argv[i+1];
				will_payloadlen = strlen(will_payload);
			}
			i++;
		}else if(!strcmp(argv[i], "--will-qos")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-qos argument given but no will QoS specified.\n\n");
				print_usage();
				return 1;
			}else{
				will_qos = atoi(argv[i+1]);
				if(will_qos < 0 || will_qos > 2){
					fprintf(stderr, "Error: Invalid will QoS %d.\n\n", will_qos);
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--will-retain")){
			will_retain = true;
		}else if(!strcmp(argv[i], "--will-topic")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-topic argument given but no will topic specified.\n\n");
				print_usage();
				return 1;
			}else{
				will_topic = argv[i+1];
			}
			i++;
		}else{
			fprintf(stderr, "Error: Unknown option '%s'.\n",argv[i]);
			print_usage();
			return 1;
		}
	}

	if(clean_session == false && (id_prefix || !id)){
		if(!ud.quiet) fprintf(stderr, "Error: You must provide a client id if you are using the -c option.\n");
		return 1;
	}

	if(ud.topic_count == 0){
		fprintf(stderr, "Error: You must specify a topic to subscribe to.\n");
		print_usage();
		return 1;
	}
	if(will_payload && !will_topic){
		fprintf(stderr, "Error: Will payload given, but no will topic given.\n");
		print_usage();
		return 1;
	}
	if(will_retain && !will_topic){
		fprintf(stderr, "Error: Will retain given, but no will topic given.\n");
		print_usage();
		return 1;
	}
	if(ud.password && !ud.username){
		if(!ud.quiet) fprintf(stderr, "Warning: Not using password since username not set.\n");
	}
	if((certfile && !keyfile) || (keyfile && !certfile)){
		fprintf(stderr, "Error: Both certfile and keyfile must be provided if one of them is.\n");
		print_usage();
		return 1;
	}
	if((cafile || capath) && psk){
		if(!ud.quiet) fprintf(stderr, "Error: Only one of --psk or --cafile/--capath may be used at once.\n");
		return 1;
	}
	if(psk && !psk_identity){
		if(!ud.quiet) fprintf(stderr, "Error: --psk-identity required if --psk used.\n");
		return 1;
	}

	mosquitto_lib_init();

	if(id_prefix){
		id = malloc(strlen(id_prefix)+10);
		if(!id){
			if(!ud.quiet) fprintf(stderr, "Error: Out of memory.\n");
			mosquitto_lib_cleanup();
			return 1;
		}
		snprintf(id, strlen(id_prefix)+10, "%s%d", id_prefix, getpid());
	}else if(!id){
		hostname[0] = '\0';
		gethostname(hostname, 256);
		hostname[255] = '\0';
		len = strlen("mosqsub/-") + 6 + strlen(hostname);
		id = malloc(len);
		if(!id){
			if(!ud.quiet) fprintf(stderr, "Error: Out of memory.\n");
			mosquitto_lib_cleanup();
			return 1;
		}
		snprintf(id, len, "mosqsub/%d-%s", getpid(), hostname);
		if(strlen(id) > MOSQ_MQTT_ID_MAX_LENGTH){
			/* Enforce maximum client id length of 23 characters */
			id[MOSQ_MQTT_ID_MAX_LENGTH] = '\0';
		}
	}

	mosq = mosquitto_new(id, clean_session, &ud);
	if(!mosq){
		switch(errno){
			case ENOMEM:
				if(!ud.quiet) fprintf(stderr, "Error: Out of memory.\n");
				break;
			case EINVAL:
				if(!ud.quiet) fprintf(stderr, "Error: Invalid id and/or clean_session.\n");
				break;
		}
		mosquitto_lib_cleanup();
		return 1;
	}
	if(debug){
		mosquitto_log_callback_set(mosq, my_log_callback);
	}
	if(will_topic && mosquitto_will_set(mosq, will_topic, will_payloadlen, will_payload, will_qos, will_retain)){
		if(!ud.quiet) fprintf(stderr, "Error: Problem setting will.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	if(ud.username && mosquitto_username_pw_set(mosq, ud.username, ud.password)){
		if(!ud.quiet) fprintf(stderr, "Error: Problem setting username and password.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	if((cafile || capath) && mosquitto_tls_set(mosq, cafile, capath, certfile, keyfile, NULL)){
		if(!ud.quiet) fprintf(stderr, "Error: Problem setting TLS options.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	if(psk && mosquitto_tls_psk_set(mosq, psk, psk_identity, NULL)){
		if(!ud.quiet) fprintf(stderr, "Error: Problem setting TLS-PSK options.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	mosquitto_connect_callback_set(mosq, my_connect_callback);
	mosquitto_message_callback_set(mosq, my_message_callback);
	if(debug){
		mosquitto_subscribe_callback_set(mosq, my_subscribe_callback);
	}

	rc = mosquitto_connect(mosq, host, port, keepalive);
	if(rc){
		if(!ud.quiet){
			if(rc == MOSQ_ERR_ERRNO){
#ifndef WIN32
				strerror_r(errno, err, 1024);
#else
				FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, errno, 0, (LPTSTR)&err, 1024, NULL);
#endif
				fprintf(stderr, "Error: %s\n", err);
			}else{
				fprintf(stderr, "Unable to connect (%d).\n", rc);
			}
		}
		return rc;
		mosquitto_lib_cleanup();
	}

	rc = mosquitto_loop_forever(mosq, -1, 1);

	mosquitto_destroy(mosq);
	mosquitto_lib_cleanup();

	if(rc){
		if(rc == MOSQ_ERR_ERRNO){
			fprintf(stderr, "Error: %s\n", strerror(errno));
		}else{
			fprintf(stderr, "Error: %s\n", mosquitto_strerror(rc));
		}
	}
	return rc;
}
void MQTT_setup() {
	printf("[MQTT] setup\n");
	char *id = NULL;
	char *id_prefix = NULL;
	int i;
	char *host = "192.168.1.127";
	int port = 1883;
	int keepalive = 60;
	bool clean_session = true;
	bool debug = false;
	int rc, rc2;
	char hostname[21];
	char err[1024];
	
	uint8_t *will_payload = NULL;
	long will_payloadlen = 0;
	int will_qos = 0;
	bool will_retain = false;
	char *will_topic = NULL;
    printf("[MQTT] Initialization MQTT at %s:%i\n", host, port);
	
	if(clean_session == false && (id_prefix || !id)){
		fprintf(stderr, "[MQTT] Error: You must provide a client id if you are using the -c option.\n");
		return 1;
	}
	if(id_prefix){
		id = malloc(strlen(id_prefix)+10);
		if(!id){
			fprintf(stderr, "[MQTT] Error: Out of memory.\n");
			return 1;
		}
		snprintf(id, strlen(id_prefix)+10, "%s%d", id_prefix, getpid());
	}else if(!id){
		id = malloc(30);
		if(!id){
			fprintf(stderr, "[MQTT] Error: Out of memory.\n");
			return 1;
		}
		memset(hostname, 0, 21);
		gethostname(hostname, 20);
		snprintf(id, 23, "mosq_sub_%d_%s", getpid(), hostname);
	}

	if(will_payload && !will_topic){
		fprintf(stderr, "[MQTT] Error: Will payload given, but no will topic given.\n");
		return 1;
	}
	if(will_retain && !will_topic){
		fprintf(stderr, "[MQTT] Error: Will retain given, but no will topic given.\n");
		return 1;
	}
	if(MQTT_password && !MQTT_username){
		fprintf(stderr, "[MQTT] Warning: Not using password since username not set.\n");
	}
	mosquitto_lib_init();
	MQTT_mosq = mosquitto_new(id, NULL);
	if(!MQTT_mosq){
		fprintf(stderr, "[MQTT] Error: Out of memory.\n");
		return 1;
	}
	if(will_topic && mosquitto_will_set(MQTT_mosq, true, will_topic, will_payloadlen, will_payload, will_qos, will_retain)){
		fprintf(stderr, "[MQTT] Error: Problem setting will.\n");
		return 1;
	}
	if(MQTT_username && mosquitto_username_pw_set(MQTT_mosq, MQTT_username, MQTT_password)){
		fprintf(stderr, "[MQTT] Error: Problem setting username and password.\n");
		return 1;
	}
	mosquitto_connect_callback_set(MQTT_mosq, MQTT_connect_callback);
	mosquitto_message_callback_set(MQTT_mosq, MQTT_message_callback);
	
	mosquitto_subscribe_callback_set(MQTT_mosq, MQTT_subscribe_callback);

	rc = mosquitto_connect(MQTT_mosq, host, port, keepalive, clean_session);
	if(rc){
		if(rc == MOSQ_ERR_ERRNO){
			strerror_r(errno, err, 1024);
			fprintf(stderr, "[MQTT] Error: %s\n", err);
		}else{
			fprintf(stderr, "[MQTT] Unable to connect (%d).\n", rc);
		}
		//return rc;
	}

}
示例#10
0
int main(int argc, char *argv[])
{
	int sd = -1;
	char *conf_file = NULL;
	struct mosquitto *mosq;
	struct module *md;
	struct device *dev;
	int rc;
	int i;
	
	gbuf[0] = 0;

	if (!quiet) printf("Version: %s\n", version);

    signal(SIGINT, handle_signal);
    signal(SIGTERM, handle_signal);
	signal(SIGUSR1, handle_signal);
	signal(SIGUSR2, handle_signal);
	signal(SIGALRM, each_sec);
	
	for (i=1; i<argc; i++) {
		if(!strcmp(argv[i], "-c") || !strcmp(argv[i], "--config")){
			if(i==argc-1){
                fprintf(stderr, "Error: -c argument given but no file specified.\n\n");
				print_usage(argv[0]);
                return 1;
            }else{
				conf_file = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--quiet")){
				quiet = true;
		}else{
				fprintf(stderr, "Error: Unknown option '%s'.\n",argv[i]);
				print_usage(argv[0]);
				return 1;
		}
	}
	
	if (!conf_file) {
		fprintf(stderr, "Error: No config file given.\n");
		return 1;
	}

	memset(&config, 0, sizeof(struct bridge_config));
	if (config_parse(conf_file, &config)) return 1;
	
	if (quiet) config.debug = 0;
	if (config.debug != 0) printf("Debug: %d\n", config.debug);

	rc = bridge_init(&bridge, config.id, MODULES_BRIDGE_ID);
	if (rc) {
		if (config.debug) printf("Error: Failed to initialize bridge: %d\n", rc);
		return 1;
	}

	mosquitto_lib_init();
	mosq = mosquitto_new(config.id, true, NULL);
	if(!mosq){
		fprintf(stderr, "Error creating mqtt instance.\n");
		switch(errno){
			case ENOMEM:
				fprintf(stderr, " out of memory.\n");
				break;
			case EINVAL:
				fprintf(stderr, " invalid id.\n");
				break;
		}
		return 1;
	}
	snprintf(gbuf, GBUF_SIZE, "%d", PROTOCOL_TIMEOUT);
	mosquitto_will_set(mosq, bridge.bridge_dev->status_topic, strlen(gbuf), gbuf, config.mqtt_qos, MQTT_RETAIN);

	mosquitto_connect_callback_set(mosq, on_mqtt_connect);
	mosquitto_disconnect_callback_set(mosq, on_mqtt_disconnect);
	mosquitto_message_callback_set(mosq, on_mqtt_message);
	mosquitto_user_data_set(mosq, &sd);

	md = bridge_add_module(bridge.bridge_dev, MODULES_MQTT_ID, true);
	if (!md) {
		fprintf(stderr, "Failed to add MQTT module.\n");
		return 1;
	}

	if (config.scripts_folder) {
		if (access(config.scripts_folder, R_OK )) {
			fprintf(stderr, "Couldn't open scripts folder: %s\n", config.scripts_folder);
			return 1;
		}
		md = bridge_add_module(bridge.bridge_dev, MODULES_SCRIPT_ID, true);
		if (!md) {
			fprintf(stderr, "Failed to add script module.\n");
			return 1;
		}
	}

	if (config.interface) {
		//TODO: check if interface exists
		if (access("/proc/net/dev", R_OK )) {
			fprintf(stderr, "Couldn't open /proc/net/dev\n");
			return 1;
		}
		md = bridge_add_module(bridge.bridge_dev, MODULES_BANDWIDTH_ID, true);
		if (!md) {
			fprintf(stderr, "Failed to add bandwidth module.\n");
			return 1;
		}
		bandwidth = true;
	}

	if (config.serial.port) {
		sd = serialport_init(config.serial.port, config.serial.baudrate);
		if( sd == -1 ) {
			fprintf(stderr, "Couldn't open serial port.\n");
			return 1;
		} else {
			md = bridge_add_module(bridge.bridge_dev, MODULES_SERIAL_ID, true);
			if (!md) {
				fprintf(stderr, "Failed to add serial module.\n");
				return 1;
			}
			serialport_flush(sd);
			bridge.serial_ready = true;

			if (config.debug) printf("Serial ready.\n");
		}
	}

	if (config.debug > 2) bridge_print_modules(bridge.bridge_dev);

	rc = mosquitto_connect(mosq, config.mqtt_host, config.mqtt_port, 60);
	if (rc) {
		fprintf(stderr, "ERROR: %s\n", mosquitto_strerror(rc));
		return -1;
	}

	alarm(1);

	while (run) {
		if (bridge.serial_ready) {
			rc = serial_in(sd, mosq, MODULES_SERIAL_ID);
			if (rc == -1) {
				serial_hang(mosq);
			} else if (rc > 0) {
				bridge.serial_alive = DEVICE_ALIVE_MAX;
			}
		}

		if (user_signal) {
			if (config.debug > 2) printf("Signal - SIGUSR: %d\n", user_signal);
			signal_usr(sd, mosq);
		}

		rc = mosquitto_loop(mosq, 100, 1);
		if (run && rc) {
			if (config.debug > 2) printf("MQTT loop: %s\n", mosquitto_strerror(rc));
			usleep(100000);	// wait 100 msec
			mosquitto_reconnect(mosq);
		}
		usleep(20);

		if (every1s) {
			every1s = false;

			for (dev = bridge.dev_list; dev != NULL; dev = dev->next) {
				if (dev->alive) {
					dev->alive--;
					if (!dev->alive) {
						if (connected) {
							snprintf(gbuf, GBUF_SIZE, "%d", PROTOCOL_TIMEOUT);
							mqtt_publish(mosq, dev->status_topic, gbuf);
							rc = mosquitto_unsubscribe(mosq, NULL, dev->config_topic);
							if (rc)
								fprintf(stderr, "Error: MQTT unsubscribe returned: %s\n", mosquitto_strerror(rc));
						}
						if (config.debug) printf("Device: %s - Timeout.\n", dev->id);
						bridge_remove_device(&bridge, dev->id);
					}
				}
			}
		}

		if (every30s) {
			every30s = false;

			if (connected) {
				send_alive(mosq);

				if (bandwidth) {
					md = bridge_get_module(bridge.bridge_dev, MODULES_BANDWIDTH_ID);
					if (md) {
						snprintf(gbuf, GBUF_SIZE, "%.0f,%.0f", upspeed, downspeed);
						mqtt_publish(mosq, md->topic, gbuf);
						if (config.debug > 2) printf("down: %f - up: %f\n", downspeed, upspeed);
					}
				}
			} else {
				if (config.debug) printf("MQTT Offline.\n");
			}

			if (bridge.serial_alive) {
				bridge.serial_alive--;
				if (!bridge.serial_alive) {
					if (config.debug > 1) printf("Serial timeout.\n");
					serial_hang(mosq);
				}
			} else {
				if (config.serial.port && !bridge.serial_ready) {
					if (config.debug > 1) printf("Trying to reconnect serial port.\n");
					serialport_close(sd);
					sd = serialport_init(config.serial.port, config.serial.baudrate);
					if( sd == -1 ) {
						fprintf(stderr, "Couldn't open serial port.\n");
					} else {
						serialport_flush(sd);
						bridge.serial_ready = true;
						snprintf(gbuf, GBUF_SIZE, "%d", MODULES_SERIAL_OPEN);
						mqtt_publish(mosq, md->topic, gbuf);
						if (config.debug) printf("Serial reopened.\n");
					}
				}
			}
		}
	}

	if (bridge.serial_ready) {
		serialport_close(sd);
	}

	mosquitto_destroy(mosq);

	mosquitto_lib_cleanup();
	config_cleanup(&config);

	printf("Exiting..\n\n");

	return 0;
}
示例#11
0
int main(int argc, char *argv[])
{
	int sd = -1;
	char *conf_file = NULL;
	struct mosquitto *mosq;
	struct module *md;
	struct device *dev;
	int rc;
	int i;
	
	if (!quiet) printf("Version: %s\n", version);

    signal(SIGINT, handle_signal);
    signal(SIGTERM, handle_signal);
	signal(SIGUSR1, handle_signal);
	signal(SIGUSR2, handle_signal);
	signal(SIGALRM, each_sec);
	
	for (i=1; i<argc; i++) {
		if(!strcmp(argv[i], "-c") || !strcmp(argv[i], "--config")){
			if(i==argc-1){
                fprintf(stderr, "Error: -c argument given but no file specified.\n\n");
				print_usage(argv[0]);
                return 1;
            }else{
				conf_file = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--quiet")){
				quiet = true;
		}else{
				fprintf(stderr, "Error: Unknown option '%s'.\n",argv[i]);
				print_usage(argv[0]);
				return 1;
		}
	}
	
	if(!conf_file) {
		fprintf(stderr, "Error: No config file given.\n");
		return 1;
	}

	memset(&config, 0, sizeof(struct bridge_config));
	if(config_parse(conf_file, &config)) return 1;
	
	if (quiet) config.debug = 0;
	if (config.debug != 0) printf("Debug: %d\n", config.debug);

	if (!device_isValid_id(config.id)) {
		fprintf(stderr, "Invalid id.\n");
		return -1;
	}
	if (device_init(&bridge, config.id) == -1)
		return 1;

	mosquitto_lib_init();
	mosq = mosquitto_new(config.id, true, NULL);
	if(!mosq){
		fprintf(stderr, "Error creating mqtt instance.\n");
		switch(errno){
			case ENOMEM:
				fprintf(stderr, " out of memory.\n");
				break;
			case EINVAL:
				fprintf(stderr, " invalid id.\n");
				break;
		}
		return 1;
	}
	snprintf(gbuf, GBUF_SIZE, "%d", PROTO_ST_TIMEOUT);
	mosquitto_will_set(mosq, bridge.status_topic, strlen(gbuf), gbuf, config.mqtt_qos, MQTT_RETAIN);
	mosquitto_connect_callback_set(mosq, on_mqtt_connect);
	mosquitto_disconnect_callback_set(mosq, on_mqtt_disconnect);
	mosquitto_message_callback_set(mosq, on_mqtt_message);
	mosquitto_user_data_set(mosq, &sd);

	if (config.debug > 1) printf("Subscribe topic: %s\n", bridge.config_topic);

	rc = device_add_module(&bridge, MODULE_MQTT_ID, bridge.id);				//TODO: autogen id?
	if (rc) {
		fprintf(stderr, "Failed to add mqtt module.\n");
		return 1;
	}

	if (config.scripts_folder) {
		if (access(config.scripts_folder, R_OK )) {
			fprintf(stderr, "Couldn't open scripts folder: %s\n", config.scripts_folder);
			return 1;
		}
		rc = device_add_module(&bridge, MODULE_SCRIPT_ID, bridge.id);		//TODO: autogen id?
		if (rc) {
			fprintf(stderr, "Failed to add script module.\n");
			return 1;
		}
	}
	if (config.interface) {
		//TODO: check if interface exists
		if (access("/proc/net/dev", R_OK )) {
			fprintf(stderr, "Couldn't open /proc/net/dev\n");
			return 1;
		}
		rc = device_add_module(&bridge, MODULE_BANDWIDTH_ID, bridge.id);		//TODO: autogen id?
		if (rc) {
			fprintf(stderr, "Failed to add bandwidth module.\n");
			return 1;
		}
		bandwidth = true;
	}
	if (config.serial.port) {
		sd = serialport_init(config.serial.port, config.serial.baudrate);
		if( sd == -1 ) {
			fprintf(stderr, "Couldn't open serial port.\n");
			return 1;
		} else {
			rc = device_add_module(&bridge, MODULE_SERIAL_ID, bridge.id);		//TODO: autogen id?
			if (rc) {
				fprintf(stderr, "Failed to add serial module.\n");
				return 1;
			}
			serialport_flush(sd);
			bridge.serial_ready = true;

			if (config.debug) printf("Serial ready.\n");
		}
	}

	rc = device_add_module(&bridge, MODULE_SIGUSR1_ID, bridge.id);			//TODO: autogen id?
	if (rc) {
		fprintf(stderr, "Failed to add sigusr1 module.\n");
		return 1;
	}

	rc = device_add_module(&bridge, MODULE_SIGUSR2_ID, bridge.id);			//TODO: autogen id?
	if (rc) {
		fprintf(stderr, "Failed to add sigusr2 module.\n");
		return 1;
	}

	device_print_modules(&bridge);

	rc = mosquitto_connect(mosq, config.mqtt_host, config.mqtt_port, 60);
	if (rc) {
		fprintf(stderr, "Wrong MQTT parameters. Check your config.\n");
		return -1;
	}

	alarm(1);

	while (run) {
		if (bridge.serial_ready) {
			rc = serial_in(sd, mosq, MODULE_SERIAL_ID);
			if (rc == -1) {
				serial_hang(mosq);
			} else if (rc > 0) {
				bridge.serial_alive = ALIVE_CNT;
			}
		}

		if (user_signal) {
			if (config.debug > 1) printf("Signal - SIGUSR: %d\n", user_signal);
			signal_usr(sd, mosq);
		}

		rc = mosquitto_loop(mosq, -1, 1);
		if (run && rc) {
			if (config.debug > 2) printf("MQTT loop: %s\n", mosquitto_strerror(rc));
			usleep(100000);	// wait 100 msec
			mosquitto_reconnect(mosq);
		}

		if (every30s) {
			every30s = false;

			bridge.controller = false;
			for (i = 0; i < bridge.devices_len; i++) {
				dev = &bridge.devices[i];
				if (dev->alive) {
					dev->alive--;
					if (!dev->alive) {
						snprintf(gbuf, GBUF_SIZE, "%d,%s", PROTO_ST_TIMEOUT, dev->id);
						mqtt_publish(mosq, bridge.status_topic, gbuf);

						if (dev->md_deps->type == MODULE_MQTT && dev->type == DEVICE_TYPE_NODE) {
							snprintf(gbuf, GBUF_SIZE, "status/%s", dev->id);
							rc = mosquitto_unsubscribe(mosq, NULL, gbuf);
							if (rc)
								fprintf(stderr, "Error: MQTT unsubscribe returned: %s\n", mosquitto_strerror(rc));
						}

						if (config.debug) printf("Device timeout - id: %s\n", dev->id);
					} else {
						if (dev->type == DEVICE_TYPE_CONTROLLER)
							bridge.controller = true;
					}
				}
			}

			if (!bridge.controller)
				bridge.modules_update = false;

			if (connected) {
				snprintf(gbuf, GBUF_SIZE, "%d,%d", PROTO_ST_ALIVE, bridge.modules_len);
				mqtt_publish(mosq, bridge.status_topic, gbuf);

				if (bridge.modules_update) {
					snprintf(gbuf, GBUF_SIZE, "%d", PROTO_ST_MODULES_UP);
					if (mqtt_publish(mosq, bridge.status_topic, gbuf))
						bridge.modules_update = false;
				}

				if (bandwidth) {
					md = device_get_module(&bridge, MODULE_BANDWIDTH_ID);
					if (md) {
						if (mqtt_publish_bandwidth(mosq, md->topic) == -1)
							break;
					}
				}
			} else {
				if (config.debug != 0) printf("MQTT Offline.\n");
			}

			if (bridge.serial_alive) {
				bridge.serial_alive--;
				if (!bridge.serial_alive) {
					if (config.debug > 1) printf("Serial timeout.\n");
					serial_hang(mosq);
				}
			} else {
				if (config.serial.port && !bridge.serial_ready) {
					if (config.debug > 1) printf("Trying to reconnect serial port.\n");
					serialport_close(sd);
					sd = serialport_init(config.serial.port, config.serial.baudrate);
					if( sd == -1 )
						fprintf(stderr, "Couldn't open serial port.\n");
					else {
						serialport_flush(sd);
						bridge.serial_ready = true;
						if (config.debug) printf("Serial reopened.\n");
					}
				}
			}
		}
		usleep(20);
	}

	if (bridge.serial_ready) {
		serialport_close(sd);
	}

	mosquitto_destroy(mosq);

	mosquitto_lib_cleanup();
	config_cleanup(&config);

	printf("Exiting..\n\n");

	return 0;
}
int mosquittopp::will_set(bool will, const char *topic, uint32_t payloadlen, const uint8_t *payload, int qos, bool retain)
{
	return mosquitto_will_set(mosq, will, topic, payloadlen, payload, qos, retain);
}
/*
 * ##########################
 * Main Function
 * ##########################
 */
int main(int argc, char *argv[])
{
	/* program setup variable */
	struct mosquitto *mosq = NULL;
	struct mqtt_userdata *ud = NULL;
	bool clean_session = true;
	bool debug = false;
	char buf[MQTT_BUFSIZE];
	char err[MQTT_ERR_BUFSIZE];
	/* client id */
	char id[MQTT_ID_LEN];
	char id_prefix[MQTT_ID_LEN];
	char hostname[MQTT_HOSTNAME_BUFSIZE];
	/* broker variable */
	char host[MQTT_IP_LEN] = "127.0.0.1";
	int port = 1883;
	int keepalive = 3600;
	/* will information */
	char *will_topic = NULL;
	long will_payloadlen = 0;
	char *will_payload = NULL;
	int will_qos = 0;
	bool will_retain = false;
	/* temp variable */
	int i;
	int rc;

	/* initialized program and user data structure */
	ud = malloc(sizeof(struct mqtt_userdata));
	memset(ud, 0, sizeof(struct mqtt_userdata));
	memset(id, '\0', sizeof(id));
	memset(id_prefix, '\0', sizeof(id_prefix));
	ud->topic_qos = 2;

	/* get option */
	for(i=1; i<argc; i++){
		if(!strcmp(argv[i], "-p") || !strcmp(argv[i], "--port")){
			if(i==argc-1){
				fprintf(stderr, "Error: -p argument given but no port specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				port = atoi(argv[i+1]);
				if(port<1 || port>65535){
					fprintf(stderr, "Error: Invalid port given: %d\n", port);
					mqtt_print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-c") || !strcmp(argv[i], "--disable-clean-session")){
			clean_session = false;
		}else if(!strcmp(argv[i], "-d") || !strcmp(argv[i], "--debug")){
			debug = true;
		}else if(!strcmp(argv[i], "--help")){
			mqtt_print_usage();
			return 0;
		}else if(!strcmp(argv[i], "-h") || !strcmp(argv[i], "--host")){
			if(i==argc-1){
				fprintf(stderr, "Error: -h argument given but no host specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				if (strlen(argv[i+1]) >= MQTT_IP_LEN) {
					fprintf(stderr, "Error: max length of ip is %d.\n\n", MQTT_IP_LEN);
					mqtt_print_usage();
				} else {
					memset(host, '\0', sizeof(host));
					strcpy(host, argv[i+1]);
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-i") || !strcmp(argv[i], "--id")){
			if(strlen(id_prefix) != 0){
				fprintf(stderr, "Error: -i and -I argument cannot be used together.\n\n");
				mqtt_print_usage();
				return 1;
			}
			if(i==argc-1){
				fprintf(stderr, "Error: -i argument given but no id specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				if (strlen(argv[i+1]) >= MOSQ_MQTT_ID_MAX_LENGTH) {
					fprintf(stderr, "Error: max length of client id is %d.\n\n", MOSQ_MQTT_ID_MAX_LENGTH);
					mqtt_print_usage();
				} else {
					strcpy(id, argv[i+1]);
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-I") || !strcmp(argv[i], "--id-prefix")){
			if(strlen(id) != 0){
				fprintf(stderr, "Error: -i and -I argument cannot be used together.\n\n");
				mqtt_print_usage();
				return 1;
			}
			if(i==argc-1){
				fprintf(stderr, "Error: -I argument given but no id prefix specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				if (strlen(argv[i+1]) >= MOSQ_MQTT_ID_MAX_LENGTH) {
					fprintf(stderr, "Error: max length of client id is %d.\n\n", MOSQ_MQTT_ID_MAX_LENGTH);
					mqtt_print_usage();
				} else {
					strcpy(id_prefix, argv[i+1]);
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-k") || !strcmp(argv[i], "--keepalive")){
			if(i==argc-1){
				fprintf(stderr, "Error: -k argument given but no keepalive specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				keepalive = atoi(argv[i+1]);
				if(keepalive>65535){
					fprintf(stderr, "Error: Invalid keepalive given: %d\n", keepalive);
					mqtt_print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "-q") || !strcmp(argv[i], "--qos")){
			if(i==argc-1){
				fprintf(stderr, "Error: -q argument given but no QoS specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->topic_qos = atoi(argv[i+1]);
				if(ud->topic_qos<0 || ud->topic_qos>2){
					fprintf(stderr, "Error: Invalid QoS given: %d\n", ud->topic_qos);
					mqtt_print_usage();
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--quiet")){
			ud->quiet = true;
		}else if(!strcmp(argv[i], "-R")){
			ud->no_retain = true;
		}else if(!strcmp(argv[i], "-t") || !strcmp(argv[i], "--topic")){
			if(i==argc-1){
				fprintf(stderr, "Error: -t argument given but no topic specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->topic_count++;
				ud->topics = realloc(ud->topics, ud->topic_count*sizeof(char *));
				ud->topics[ud->topic_count-1] = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-u") || !strcmp(argv[i], "--username")){
			if(i==argc-1){
				fprintf(stderr, "Error: -u argument given but no username specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->username = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "-v") || !strcmp(argv[i], "--verbose")){
			ud->verbose = 1;
		}else if(!strcmp(argv[i], "-P") || !strcmp(argv[i], "--pw")){
			if(i==argc-1){
				fprintf(stderr, "Error: -P argument given but no password specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				ud->password = argv[i+1];
			}
			i++;
		}else if(!strcmp(argv[i], "--will-payload")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-payload argument given but no will payload specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				will_payload = argv[i+1];
				will_payloadlen = strlen(will_payload);
			}
			i++;
		}else if(!strcmp(argv[i], "--will-qos")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-qos argument given but no will QoS specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				will_qos = atoi(argv[i+1]);
				if(will_qos < 0 || will_qos > 2){
					fprintf(stderr, "Error: Invalid will QoS %d.\n\n", will_qos);
					return 1;
				}
			}
			i++;
		}else if(!strcmp(argv[i], "--will-retain")){
			will_retain = true;
		}else if(!strcmp(argv[i], "--will-topic")){
			if(i==argc-1){
				fprintf(stderr, "Error: --will-topic argument given but no will topic specified.\n\n");
				mqtt_print_usage();
				return 1;
			}else{
				will_topic = argv[i+1];
			}
			i++;
		}else{
			fprintf(stderr, "Error: Unknown option '%s'.\n",argv[i]);
			mqtt_print_usage();
			return 1;
		}
	}

	/* verify necessary variable */
	if(clean_session == false && ((strlen(id_prefix) != 0) || (strlen(id) == 0))){
		if(!ud->quiet) fprintf(stderr, "Error: You must provide a client id if you are using the -c option.\n");
		return 1;
	}
	if(ud->topic_count == 0){
		fprintf(stderr, "Error: You must specify a topic to subscribe to.\n");
		mqtt_print_usage();
		return 1;
	}
	if(will_payload && !will_topic){
		fprintf(stderr, "Error: Will payload given, but no will topic given.\n");
		mqtt_print_usage();
		return 1;
	}
	if(will_retain && !will_topic){
		fprintf(stderr, "Error: Will retain given, but no will topic given.\n");
		mqtt_print_usage();
		return 1;
	}
	if(ud->password && !ud->username){
		if(!ud->quiet) fprintf(stderr, "Warning: Not using password since username not set.\n");
	}

	/* setup signal handler */
	signal(SIGINT, mqtt_signal_handler);
	signal(SIGTERM, mqtt_signal_handler);

	/* init mosquitto library */
	mosquitto_lib_init();

	/* setup client id */
	if(strlen(id_prefix) != 0){
		snprintf(id, sizeof(id), "%s%d", id_prefix, getpid());
	}else if(strlen(id) == 0){
		memset(hostname, '\0', sizeof(hostname));
		gethostname(hostname, sizeof(hostname));
		snprintf(id, sizeof(id), "mosqsub/%d-%s", getpid(), hostname);
	}
	if(strlen(id) > MOSQ_MQTT_ID_MAX_LENGTH){
		/* Enforce maximum client id length of 23 characters */
		id[MOSQ_MQTT_ID_MAX_LENGTH] = '\0';
	}

	/* start mosquitto */
	mosq = mosquitto_new(id, clean_session, ud);
	if(!mosq){
		if(!ud->quiet) fprintf(stderr, "Error: %s\n", strerror(errno));
		mosquitto_lib_cleanup();
		return 1;
	}

	/* setup mosquitto */
	if(debug){
		mosquitto_log_callback_set(mosq, mqtt_log_callback);
	}
	if(will_topic && mosquitto_will_set(mosq, will_topic, will_payloadlen, will_payload, will_qos, will_retain)){
		if(!ud->quiet) fprintf(stderr, "Error: Problem setting will.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	if(ud->username && mosquitto_username_pw_set(mosq, ud->username, ud->password)){
		if(!ud->quiet) fprintf(stderr, "Error: Problem setting username and password.\n");
		mosquitto_lib_cleanup();
		return 1;
	}
	mosquitto_connect_callback_set(mosq, mqtt_connect_callback);
	mosquitto_message_callback_set(mosq, mqtt_message_callback);
	if(debug){
		mosquitto_subscribe_callback_set(mosq, mqtt_subscribe_callback);
	}

	/* connect mosquitto */
	rc = mosquitto_connect(mosq, host, port, keepalive);
	if(rc){
		if(!ud->quiet){
			if(rc == MOSQ_ERR_ERRNO){
#ifndef WIN32
				strerror_r(errno, err, sizeof(err));
#else
				FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, errno, 0, (LPTSTR)&err, sizeof(err), NULL);
#endif
				fprintf(stderr, "Error: %s\n", err);
			}else{
				fprintf(stderr, "Unable to connect (%d: %s).\n", rc, mosquitto_strerror(rc));
			}
		}
		mosquitto_lib_cleanup();
		return rc;
	}

	mosquitto_loop_start(mosq);

	/*
	 * loop mosquitto,
	 * it use select() to call back the callback-function which defined before.
	 */
	do{
		if (fgets(buf, sizeof(buf), stdin)) {
			buf[strlen(buf)-1] = '\0';
			rc = mosquitto_publish(mosq, &ud->mid_sent, "simon", strlen(buf), buf, 0, 0);
			if (rc) {
				if (!ud->quiet) fprintf(stderr, "Error: Publish returned %d, disconnecting.\n", rc);
				mosquitto_disconnect(mosq);
			}
		}
	} while (rc == MOSQ_ERR_SUCCESS);

	mosquitto_loop_stop(mosq, false);

	/* free mosquitto */
	mosquitto_destroy(mosq);
	mosquitto_lib_cleanup();
	mqtt_userdata_free(ud);

	return 0;
}