From 4de24b43bfc373f46f0510703cde7562fb8cb703 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Tue, 18 Nov 2025 16:11:32 +0800
Subject: [PATCH] update iniparser to remove warnning
---
project/4.mqttd/iotd.c | 371 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 371 insertions(+), 0 deletions(-)
diff --git a/project/4.mqttd/iotd.c b/project/4.mqttd/iotd.c
new file mode 100644
index 0000000..d56f9a5
--- /dev/null
+++ b/project/4.mqttd/iotd.c
@@ -0,0 +1,371 @@
+/*********************************************************************************
+ * Copyright: (C) 2019 LingYun IoT System Studio
+ * All rights reserved.
+ *
+ * Filename: main.c
+ * Description: This file is MQTT publisher/subscriber example program.
+ *
+ * Version: 1.0.0(29/01/19)
+ * Author: Guo Wenxue <guowenxue@gmail.com>
+ * ChangeLog: 1, Release initial version on "29/01/19 15:34:41"
+ *
+ ********************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+#include <getopt.h>
+#include <libgen.h>
+#include <string.h>
+#include <errno.h>
+
+#include <mosquitto.h>
+#include <cjson/cJSON.h>
+
+#include "logger.h"
+#include "proc.h"
+#include "config.h"
+#include "ds18b20.h"
+#include "sht20.h"
+#include "leds.h"
+#include "relay.h"
+
+#define PROG_VERSION "v1.0.0"
+#define DAEMON_PIDFILE "/tmp/.iotd.pid"
+
+void *mqtt_worker(void *args);
+
+static void program_usage(char *progname)
+{
+ printf("Usage: %s [OPTION]...\n", progname);
+ printf(" %s is LingYun studio iotd program running on RaspberryPi\n", progname);
+
+ printf("\nMandatory arguments to long options are mandatory for short options too:\n");
+ printf(" -b[daemon ] Running in daemon mode\n");
+ printf(" -d[debug ] Running in debug mode\n");
+ printf(" -c[conf ] Specify configure file\n");
+ printf(" -h[help ] Display this help information\n");
+ printf(" -v[version ] Display the program version\n");
+
+ printf("\n%s version %s\n", progname, PROG_VERSION);
+ return;
+}
+
+int main (int argc, char **argv)
+{
+ int daemon = 0;
+ pthread_t tid;
+ iotd_ctx_t ctx;
+ char *conf_file="/etc/iotd.conf";
+ int debug = 0;
+ int opt;
+ char *progname=NULL;
+
+ struct option long_options[] = {
+ {"conf", required_argument, NULL, 'c'},
+ {"daemon", no_argument, NULL, 'b'},
+ {"debug", no_argument, NULL, 'd'},
+ {"version", no_argument, NULL, 'v'},
+ {"help", no_argument, NULL, 'h'},
+ {NULL, 0, NULL, 0}
+ };
+
+ progname = (char *)basename(argv[0]);
+
+ /* parser the command line parameters */
+ while ((opt = getopt_long(argc, argv, "c:bdvh", long_options, NULL)) != -1)
+ {
+ switch (opt)
+ {
+ case 'c': /* Set configure file */
+ conf_file = optarg;
+ break;
+
+ case 'b': /* Set daemon running */
+ daemon = 1;
+ break;
+
+ case 'd': /* Set debug running */
+ debug = 1;
+ break;
+
+ case 'v': /* Get software version */
+ printf("%s version %s\n", progname, PROG_VERSION);
+ return 0;
+
+ case 'h': /* Get help information */
+ program_usage(progname);
+ return 0;
+
+ default:
+ break;
+ }
+ }
+
+ /* parser configure file */
+ if( parser_conf(conf_file, &ctx, debug)<0 )
+ {
+ fprintf(stderr, "Parser iotd configure file failure\n");
+ return -2;
+ }
+
+ /* install signal proc handler */
+ install_default_signal();
+
+ /* check program already running or not, if already running then exit, or set running as daemon */
+ if( check_set_program_running(daemon, DAEMON_PIDFILE) < 0 )
+ goto cleanup;
+
+ /* initial mosquitto library */
+ mosquitto_lib_init();
+
+ /* start MQTT thread */
+ if( thread_start(&tid, mqtt_worker, &ctx.mqtt ) < 0 )
+ {
+ log_error("Start MQTT worker thread failure\n");
+ goto cleanup;
+ }
+ log_info("Start MQTT worker thread ok\n");
+
+ /* control thread loop */
+ while( !g_signal.stop )
+ {
+ sleep(1);
+ }
+
+cleanup:
+ mosquitto_lib_cleanup();
+ log_close();
+
+ return 0;
+}
+
+
+/*
+ * +--------------------------------+
+ * | MQTT Thread worker |
+ * +--------------------------------+
+ */
+
+/* process publisher(uplink) data */
+void pub_connect_callback(struct mosquitto *mosq, void *userdata, int result)
+{
+ mqtt_ctx_t *mqtt = (mqtt_ctx_t *)userdata;
+ iotd_ctx_t *iotd = to_iotd(mqtt);
+ int rv = 0;
+ char msg[128];
+ float temp = 0.0; /* temperature */
+ float rh = 0.0; /* relative humidity */
+ int retain = 0;
+ static time_t last_time = 0;
+
+ /* publish time is not arrive */
+ if( !check_timeout(&last_time, mqtt->interval) )
+ return ;
+
+ log_debug("Publish topic '%s'\n", mqtt->pubTopic);
+
+ if( iotd->hwinfo.ds18b20 )
+ {
+ log_debug("DS18B20 temperature sensor enabled, start broadcast it\n");
+ if( ds18b20_get_temperature(&temp)<0 )
+ return ;
+
+ memset(msg, 0, sizeof(msg));
+ snprintf(msg, sizeof(msg), "{\"temperature\":%.2f}", temp);
+ rv = mosquitto_publish(mosq, NULL, mqtt->pubTopic, strlen(msg), msg, mqtt->pubQos, retain);
+ if( rv )
+ {
+ log_error("Publisher broadcast message '%s' failure: %d\n", msg, rv);
+ }
+ else
+ {
+ log_info("Publisher broadcast message '%s' ok\n", msg);
+ }
+ }
+
+ if( iotd->hwinfo.sht2x )
+ {
+ log_debug("SHT2X temperature and humidity sensor enabled, start broadcast it\n");
+ if( sht2x_get_temp_humidity(&temp, &rh)<0 )
+ return ;
+
+ memset(msg, 0, sizeof(msg));
+ snprintf(msg, sizeof(msg), "{\"temperature\":%.2f, \"humidity\":%.2f}", temp, rh);
+ rv = mosquitto_publish(mosq, NULL, mqtt->pubTopic, strlen(msg), msg, mqtt->pubQos, retain);
+ if( rv )
+ {
+ log_error("Publisher broadcast message '%s' failure: %d\n", msg, rv);
+ }
+ else
+ {
+ log_info("Publisher broadcast message '%s' ok\n", msg);
+ }
+ }
+
+ return ;
+}
+
+/* process subscriber(downlink) data */
+void proc_json_items(cJSON *root, mqtt_ctx_t *mqtt)
+{
+ iotd_ctx_t *iotd = to_iotd(mqtt);
+ cJSON *item;
+ char leds[LED_CNT][16] = {"RedLed", "GreenLed", "BlueLed"};
+ char relays[RELAY_CNT][16] = {"Relay"};
+ int which;
+
+ if( !root )
+ {
+ log_error("Invalid input arguments $root\n");
+ return ;
+ }
+
+ /* parser JSON command for relays */
+ if( iotd->hwinfo.relay )
+ {
+ for(which=0; which<RELAY_CNT; which++)
+ {
+ item = cJSON_GetObjectItem(root, relays[which]);
+ if( !item )
+ continue;
+
+ if( strcasecmp(item->valuestring, "on") )
+ turn_relay(which, ON);
+ else if( strcasecmp(item->valuestring, "off") )
+ turn_relay(which, OFF);
+ }
+ }
+
+ /* parser JSON command for RGB leds */
+ if( iotd->hwinfo.led )
+ {
+ for(which=0; which<LED_CNT; which++)
+ {
+ item = cJSON_GetObjectItem(root, leds[which]);
+ if( !item )
+ continue;
+
+ if( strcasecmp(item->valuestring, "on") )
+ turn_led(which, ON);
+ else if( strcasecmp(item->valuestring, "off") )
+ turn_led(which, OFF);
+ }
+ }
+
+ return ;
+}
+
+void sub_message_callback(struct mosquitto *mosq, void *userdata, const struct mosquitto_message *message)
+{
+ mqtt_ctx_t *ctx = (mqtt_ctx_t *)userdata;
+
+ cJSON *root = NULL;
+
+ if ( !message->payloadlen )
+ {
+ log_error("%s (null)\n", message->topic);
+ return ;
+ }
+
+ log_info("Subscriber receive message: '%s'\n", message->payload);
+
+ root = cJSON_Parse(message->payload);
+ if( !root )
+ {
+ log_error("cJSON_Parse parser failure: %s\n", cJSON_GetErrorPtr());
+ return ;
+ }
+
+ /* process receive message data */
+ proc_json_items(root, ctx);
+
+ /* must delete it, or it will result memory leak */
+ cJSON_Delete(root);
+
+ return ;
+}
+
+void mqtt_connect_callback(struct mosquitto *mosq, void *userdata, int result)
+{
+ mqtt_ctx_t *ctx = (mqtt_ctx_t *)userdata;
+
+ if( result )
+ {
+ log_error("mosquitto connect to broker server failed, rv=%d\n", result);
+ return ;
+ }
+
+ log_info("mosquitto connect to broker server[%s:%d] successfully\n", ctx->host, ctx->port);
+ mosquitto_subscribe(mosq, NULL, ctx->subTopic, ctx->subQos);
+}
+
+void mqtt_disconnect_callback(struct mosquitto *mosq, void *userdata, int result)
+{
+ mqtt_ctx_t *ctx = (mqtt_ctx_t *)userdata;
+
+ log_warn("mosquitto disconnect to broker server[%s:%d], reason=%d\n", ctx->host, ctx->port, result);
+}
+
+void *mqtt_worker(void *args)
+{
+ mqtt_ctx_t *ctx = (mqtt_ctx_t *)args;
+ struct mosquitto *mosq;
+ bool session = true;
+ int rv = 0;
+
+ mosq = mosquitto_new(ctx->devid, session, ctx);
+ if( !mosq )
+ {
+ log_error("mosquitto_new failure\n");
+ return NULL;
+ }
+
+ /* connnect to broker by token or uid/pwd */
+ if( strlen(ctx->token ) > 0)
+ {
+ log_info("Using token authentication: '%s'\n", ctx->token);
+ mosquitto_username_pw_set(mosq, ctx->token, NULL);
+ }
+ else if( strlen(ctx->uid)> 0 && strlen(ctx->pwd)> 0 )
+ {
+ log_info("Using username/password authentication\n");
+ mosquitto_username_pw_set(mosq, ctx->uid, ctx->pwd);
+ }
+
+ /* set callback functions */
+ mosquitto_connect_callback_set(mosq, mqtt_connect_callback);
+ mosquitto_disconnect_callback_set(mosq, mqtt_disconnect_callback);
+ mosquitto_message_callback_set(mosq, sub_message_callback);
+
+ while( !g_signal.stop )
+ {
+ /* connect to MQTT broker */
+ if( mosquitto_connect(mosq, ctx->host, ctx->port, ctx->keepalive) )
+ {
+ log_error("mosquitto connect to broker[%s:%d] failure: %s\n", ctx->host, ctx->port, strerror(errno));
+ sleep(1);
+ continue;
+ }
+
+ while(!g_signal.stop)
+ {
+ /* periodically publish and report data */
+ pub_connect_callback(mosq, ctx, MOSQ_ERR_SUCCESS);
+
+ /* MQTT process in Non-blocking mode, timeout for 1s */
+ if( MOSQ_ERR_SUCCESS != (rv = mosquitto_loop(mosq, 1000, 1)) )
+ {
+ log_warn("MQTT loop error: %s, reconnecting...\n", mosquitto_strerror(rv));
+ break;
+ }
+ }
+
+ mosquitto_disconnect(mosq);
+ sleep(1);
+ }
+
+ mosquitto_destroy(mosq);
+ return NULL;
+}
+
--
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