(I think a better error message both server/client side would be beneficial). Contributor Daedaluz commented Sep 28, 2023 Reading in the spec: The payload of a SUBSCRIBE packet MUST contain at least one Topic Filter / QoS pair. A SUBSCRIBE packet with no payload is a protocol violation ...
_mosquitto_log_printf(NULL, MOSQ_LOG_ERR, "Error: %s", err); COMPAT_CLOSE(sock); return 1; } if(listen(sock, 100) == -1){ strerror_r(errno, err, 256); _mosquitto_log_printf(NULL, MOSQ_LOG_ERR, "Error: %s", err); COMPAT_CLOSE(sock); return 1; } } freeaddrinfo(ainfo);...
When you connect to a broker you will use and IP address or name(if possible). When configuring a certificate for a broker you need to set the common name to the name/address the MQTT client will use to connect to that broker otherwise you get an error as the client will compare the ...
PROCUREMENT OF23SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS24INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN25CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE
_mosquitto_log_printf(NULL, MOSQ_LOG_ERR,"Error: %s", err); COMPAT_CLOSE(sock);return1; } } freeaddrinfo(ainfo); } 二、消息事件循环 打开监听套接字后,就可以进入消息事件循环,标准网络服务程序的必须过程。这个由main函数调用mosquitto_main_loop启动。mosquitto_main_loop函数主体也是一个大循环,在...
是一个IBM 开源pub/sub订阅发布协议MQTT的一个单机版实现(目前也只有单机版),MQTT主打轻便,比较适用于移动设备等上面,花费流量少,解析代价低。相对于XMPP等来说,简单许多。 MQTT采用二进制协议,而不是XMPP的XML协议,所以一般消息甚至只需要花费2个字节的大小就可以交换信息了,对于移动开发比较有优势。
(errno, err, 256); _mosquitto_log_printf(NULL, MOSQ_LOG_ERR, "Error: %s", err); COMPAT_CLOSE(sock); return 1; } if(listen(sock, 100) == -1){ strerror_r(errno, err, 256); _mosquitto_log_printf(NULL, MOSQ_LOG_ERR, "Error: %s", err); COMPAT_CLOSE(sock); return 1; } ...