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45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/* Example plugin that prints out the client id and IP address of any clients
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* that publish to a particular topic, defined in "my_topic". */
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#include "mosquitto_broker.h"
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#include "mosquitto_plugin.h"
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#include "mosquitto.h"
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#include "mqtt_protocol.h"
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#define PLUGIN_NAME "print-ip-on-publish"
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#define PLUGIN_VERSION "1.0"
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MOSQUITTO_PLUGIN_DECLARE_VERSION(5);
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static mosquitto_plugin_id_t *mosq_pid = NULL;
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static char my_topic[] = "troublesome/topic";
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static int message_callback(int event, void *event_data, void *userdata)
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{
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struct mosquitto_evt_message *ed = event_data;
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UNUSED(event);
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UNUSED(userdata);
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if(!strcmp(ed->topic, my_topic)){
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printf("PUBLISH FROM %s on IP %s\n", mosquitto_client_id(ed->client), mosquitto_client_address(ed->client));
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}
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return MOSQ_ERR_SUCCESS;
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}
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int mosquitto_plugin_init(mosquitto_plugin_id_t *identifier, void **user_data, struct mosquitto_opt *opts, int opt_count)
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{
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UNUSED(user_data);
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UNUSED(opts);
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UNUSED(opt_count);
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mosq_pid = identifier;
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mosquitto_plugin_set_info(identifier, PLUGIN_NAME, PLUGIN_VERSION);
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return mosquitto_callback_register(mosq_pid, MOSQ_EVT_MESSAGE, message_callback, NULL, NULL);
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}
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