Many bugfixes - fixed warnings and compile errors

README.md

@@ -20,7 +20,7 @@ Show all entries in table: `select * from stats;`
 ## Dependencies
 
 ### Raspberry Pi
-`apt install mariadb-server mariadb-client libmariadbclient-dev libmariadbclient-dev-compat libconfig-dev wiringpi (-s)`
+`apt install mariadb-server mariadb-client libmariadbclient-dev libmariadbclient-dev-compat libconfig-dev wiringpi libcurl4-openssl-dev (-s)`
 
 ### ESP-8266
 [aRest](https://github.com/marcoschwartz/aREST)

RaspberryPi/calculate.c

@@ -47,8 +47,10 @@ static float dd(float relativeHumidity, float temperature) {
   return relativeHumidity / 100 * sdd(temperature);
 }
 
+/* CURRENTLY UNUSED
+
 static float r(float temperature, float dewTemperature) {
-  /* This is optional. Necessary with dew point measurements. */
+  // This is optional. Necessary with dew point measurements.
   return 100 * sdd(dewTemperature) / sdd(temperature);
 }
 
@@ -65,7 +67,7 @@ static float td(float relativeHumidity, float temperature) {
   }
   return b * v(relativeHumidity, temperature) / (a - v(relativeHumidity, temperature));
 }
-
+*/
 static float af(float relativeHumidity, float temperature) {
     float tk = temperature + 273.15;
     return pow(10, 5) * mw/R * dd(relativeHumidity, temperature) / tk;

RaspberryPi/configreader.c

@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+
 config_t cfg;
 const config_setting_t *pins;
 
@@ -60,7 +61,7 @@ int cfgreadsensornodes(sensornode *nodes, int nodecount) {
             if (!config_setting_lookup_string(sensornodesetting, "ip", &ip))
                 continue;
             
-            currentNode->ip = ip;
+            strcpy(currentNode->ip, ip);
             //if (i < count - 1) { //stop at last item
                 currentNode->next = malloc(sizeof(sensornode));
                 currentNode = currentNode->next;
@@ -70,5 +71,5 @@ int cfgreadsensornodes(sensornode *nodes, int nodecount) {
         return 1;
         
     }
-    
+    return 0;
 }

RaspberryPi/configreader.h

@@ -1,10 +1,20 @@
+#ifndef cfgreader_H
+#define cfgreader_H
+
+
+typedef struct sensornode {
+    char *ip;
+    struct sensornode *next;
+} sensornode;
+
+
+
 void cfginit(void);
 void cfgdestroy(void);
 void cfgreinit(void);
 int cfgreadpinnumber(int element);
 int cfgreadpinamount(void);
+int cfgreadsensornodes(sensornode *nodes, int nodecount);
 
-typedef struct sensornode {
+
-    char *ip;
+#endif
-    struct sensornode *next;
-}

RaspberryPi/main.c

@@ -6,6 +6,7 @@
 #include "sendmysql.h"
 #include "configreader.h"
 #include "restcurl.h"
+#include <string.h>
 
 int main(void) {
     if (wiringPiSetup () == -1)
@@ -26,20 +27,20 @@ int main(void) {
         data.pin = cfgreadpinnumber(i);
         getData(&data);
         printf("Pin: %i, %.2f, %.2f\n", data.pin, data.temperature, data.humidity);
-        insertData(&data);
+        //insertData(&data);
     }
     
     sensornode nodes; //Settings of ESP8266 sensor nodes
-    int nodecount;
+    int nodecount = 0;
     cfgreadsensornodes(&nodes, nodecount); //read settings
     sensor nodedata; //Should be a linked list for further data usage
-    sensornode *currentNode = nodes;
+    sensornode *currentNode = &nodes;
     
     
     for (i = 0; i < nodecount; i++) {
         //start rest requests
-        nodedata.ip = currentNode->ip;
+        strcpy(nodedata.ip, currentNode->ip);
-        getRestSensor(&nodedate);
+        getRestSensor(&nodedata);
         
         printf("Temperature: %f, Humidity: %f, NodeID: %i", nodedata.temperature, nodedata.humidity, nodedata.node_id);
         

RaspberryPi/restcurl.c

@@ -1,8 +1,10 @@
 #include "restcurl.h"
 #include <curl/curl.h>
 #include <string.h>
+#include <stdlib.h>
+#include "cJSON.h"
 
-static struct url_data {
+struct url_data {
     size_t size;
     char* data;
 };
@@ -66,7 +68,7 @@ static char *handle_url(char *url) {
 
 int getRestSensor(sensor *sensor) {
     char url[25];
-    url = "http://";
+    strcpy(url, "http://");
     strcat(url, sensor->ip);
     char *data = handle_url(url);
     if (data) {