fix: better logging behaviour

src/main.c

@@ -2,6 +2,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <time.h>
+#include <syslog.h>
 
 #include <mongoose.h>
 #include <router.h>
@@ -20,7 +21,7 @@ static struct mg_mgr mgr;
 static void
 terminate(int signum)
 {
-    LOG_INFO("terminating controller (%d)\n", signum);
+    LOGGER_INFO("terminating controller (%d)\n", signum);
 
     mg_mgr_free(&mgr);
 
@@ -29,6 +30,8 @@ terminate(int signum)
     router_free();
     status_free();
 
+    closelog();
+
     exit(signum);
 }
 
@@ -47,15 +50,20 @@ main(int argc, const char** argv)
     signal(SIGABRT, terminate);
     signal(SIGTERM, terminate);
 
+    setlogmask(LOG_UPTO(LOG_INFO));
+
+
 
     /******************** LOAD CONFIG ********************/
 
     global_config.file = "core.ini";
-    global_config.log_level = LOG_LEVEL_INFO;
     global_config.discovery_port = 4421;
     global_config.mqtt_port = 1885;
     global_config.server_port = 5000;
 
+    global_config.log_level = LOG_INFO;
+    global_config.log_file = stdout;
+
     strcpy(global_config.user, "");
     strcpy(global_config.group, "");
 
@@ -70,12 +78,12 @@ main(int argc, const char** argv)
     FILE * const ini_file = fopen(global_config.file, "rb");
     if(ini_file == NULL)
     {
-        LOG_FATAL("config file '%s' was not found\n", global_config.file);
+        LOGGER_CRIT("config file '%s' was not found\n", global_config.file);
         exit(1);
     }
     if(load_ini_file( ini_file, INI_DEFAULT_FORMAT, NULL, config_load, &global_config))
     {
-        LOG_FATAL("unable to parse ini file\n");
+        LOGGER_CRIT("unable to parse ini file\n");
         exit(1);
     }
 
@@ -86,6 +94,12 @@ main(int argc, const char** argv)
     global_config.http_server_opts.enable_directory_listing = "no";
     global_config.http_server_opts.extra_headers = "Access-Control-Allow-Origin: *\r\nAccess-Control-Allow-Headers: *\r\nAccess-Control-Allow-Methods: *";
 
+    if(global_config.log_file == NULL)
+    {
+        global_config.log_file = stdout;
+    }
+    openlog("emgauwa-core", 0, LOG_USER);
+
 
     /******************** SETUP CONNECTION ********************/
 
@@ -98,7 +112,7 @@ main(int argc, const char** argv)
     struct mg_connection *c_http = mg_bind(&mgr, address, handler_http);
     if(c_http == NULL)
     {
-        LOG_FATAL("failed to bind http server to port %u\n", global_config.server_port);
+        LOGGER_CRIT("failed to bind http server to port %u\n", global_config.server_port);
         exit(1);
     }
     mg_set_protocol_http_websocket(c_http);
@@ -107,7 +121,7 @@ main(int argc, const char** argv)
     struct mg_connection *c_mqtt = mg_bind(&mgr, address, handler_mqtt);
     if(c_mqtt == NULL)
     {
-        LOG_FATAL("failed to bind mqtt server to port %u\n", global_config.mqtt_port);
+        LOGGER_CRIT("failed to bind mqtt server to port %u\n", global_config.mqtt_port);
         exit(1);
     }
     mg_mqtt_broker_init(&brk, NULL);
@@ -123,7 +137,7 @@ main(int argc, const char** argv)
 
     if(rc)
     {
-        LOG_FATAL("can't open database: %s\n", sqlite3_errmsg(global_database));
+        LOGGER_CRIT("can't open database: %s\n", sqlite3_errmsg(global_database));
         return 1;
     }