From 9fcaa5cfcbb5117d550a7eb93be5112dd4cb7b58 Mon Sep 17 00:00:00 2001
From: Jonathan Santis <jonathan.wyss@santismail.ch>
Date: Mon, 16 Sep 2024 10:33:55 +0200
Subject: [PATCH] daeonizing

---
 main.c | 68 ++++++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 45 insertions(+), 23 deletions(-)

diff --git a/main.c b/main.c
index ae17b02..b5e1b41 100644
--- a/main.c
+++ b/main.c
@@ -11,19 +11,6 @@
 
 #define HELP_TEXT "requires a command\n--\ngetSendStatus [objectpath]\nlistUnits\nconfig [configfile]\nset token with GOTIFY_TOKEN=\"sjdfoiasfd\"\n--\n"
 
-int gotify_message(char *,char *,char *);
-int systemdCall(DBusConnection *,char *, char *);
-int checkIsActive(DBusConnection *connection, char *service_name);
-int systemdUnitCall(DBusConnection *connection,char *target,char *method,char *param,char **result);
-int GetSendStatus(DBusConnection *connection,char *objectpath);
-int checkState(char *ServiceName,char *result);
-
-/*
- *sytemctl show gotify-server | grep PID
- *sudo busctl tree org.freedesktop.systemd1 > get object paths
-    //org/freedesktop/systemd1
-	//gotify_message("https://5ccppi.org:4433/message?token=","anothertitle","anothermessage");
- * */
 typedef struct service
 {
         char *name;
@@ -32,6 +19,22 @@ typedef struct service
 		int priority;
 } Service;
 
+int gotify_message(char *,char *,char *);
+int systemdCall(DBusConnection *,char *, char *);
+int checkIsActive(DBusConnection *connection, char *service_name);
+int systemdUnitCall(DBusConnection *connection,char *target,char *method,char *param,char **result);
+int GetSendStatus(DBusConnection *connection,char *objectpath);
+int ServiceGetSendStatus(DBusConnection *connection,Service *service);
+int checkState(char *ServiceName,char *result,Service *service);
+
+/*
+ *sytemctl show gotify-server | grep PID
+ *sudo busctl tree org.freedesktop.systemd1 > get object paths
+    //org/freedesktop/systemd1
+	//gotify_message("https://5ccppi.org:4433/message?token=","anothertitle","anothermessage");
+ * */
+
+
 int main(int argc,char *argv[])
 {
 	DBusConnection *connection=NULL;
@@ -96,7 +99,7 @@ int main(int argc,char *argv[])
                     printf("Running as a daemon\n");
                     char *str_entry[64]={'\0'};
                     int i=0;
-                    Service services[64]; 
+                    Service services[64]={'\0'}; 
                     char *ptr_name=NULL;
 
                     loadConfig(argv[2],str_entry,64);
@@ -106,7 +109,6 @@ int main(int argc,char *argv[])
                         ptr_name = strrchr(services[i].targetPath,'/');
                         if(ptr_name!=NULL)
                         {
-                            printf("strrchr:%s\n",ptr_name);
                             services[i].name = strdup(ptr_name); 
                             services[i].name = services[i].name + 1;
                         }
@@ -120,10 +122,10 @@ int main(int argc,char *argv[])
                     }
                     while(true)
                     {
-                        for(i=0;str_entry[i];i++)
+                        for(i=0;services[i].name;i++)
                         {
-                            printf("entry in config:%s\n",str_entry[i]);
-                            GetSendStatus(connection,str_entry[i]);
+                            printf("entry in config:%s\n",services[i].name);
+                            ServiceGetSendStatus(connection,&services[i]);
                         }
                         sleep(10);
                     }
@@ -200,7 +202,21 @@ int GetSendStatus(DBusConnection *connection,char *objectpath)
             int ret = systemdUnitCall(connection,objectpath,"Get","SubState",&result);
             if(ret == 0)
             {
-                checkState(objectpath,result);
+                //checkState(objectpath,result,NULL);
+            } else
+            {
+                fprintf(stderr,"could not call systemdunit\n");
+            }
+            return ret;
+}
+int ServiceGetSendStatus(DBusConnection *connection,Service *service)
+{
+            char *result=0;
+            char *objectpath = service->targetPath;
+            int ret = systemdUnitCall(connection,objectpath,"Get","SubState",&result);
+            if(ret == 0)
+            {
+                checkState(service->name,result,service);
             } else
             {
                 fprintf(stderr,"could not call systemdunit\n");
@@ -208,7 +224,7 @@ int GetSendStatus(DBusConnection *connection,char *objectpath)
             return ret;
 }
 
-int checkState(char *ServiceName,char *result)
+int checkState(char *ServiceName,char *result,Service *service)
 {
     int i=0;
     char *error_strings[]={"dead","inactive","exited"};
@@ -216,15 +232,21 @@ int checkState(char *ServiceName,char *result)
     for(i=0;i<(sizeof(error_strings)/sizeof(error_strings[0]));i++)
     {
             //printf("%s %ld\n",error_strings[i],sizeof(error_strings)/sizeof(error_strings[0]));
-            if(strcmp(result,error_strings[i])==0)
+            if(strcmp(result,error_strings[i])==0 && service->alerted == false)
             {
+                    service->alerted=true;
                     gotify_message("https://5ccppi.org:4433",ServiceName,"is not running");
                     printf("!!system unit died!! Alert gotify server!\n");
             }
             else if(strcmp(result,"active")==0)
             {
-                    printf("!!service seems okay!!\n");
-                    return 0;
+                if(service->alerted == true)
+                {
+                    gotify_message("https://5ccppi.org:4433",ServiceName,"Running again, after crash");
+                }
+                service->alerted=false;
+                printf("!!service seems okay!!\n");
+                return 0;
             }
     }
     return 1;