From 8d0dbec7562992d044ecbb6f5d9f061b1bc90504 Mon Sep 17 00:00:00 2001
From: ccppi <ccppi3@kolabnow.ch>
Date: Wed, 4 Sep 2024 14:52:19 +0200
Subject: [PATCH] get list of services

---
 main.c | 95 +++++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 75 insertions(+), 20 deletions(-)

diff --git a/main.c b/main.c
index 2b507fb..8b6e478 100644
--- a/main.c
+++ b/main.c
@@ -4,7 +4,7 @@
 #include<dbus/dbus.h>
 
 int gotify_message(char *,char *,char *);
-int systemdCall(DBusConnection *);
+int systemdCall(DBusConnection *m,char *, char *);
 /*
  *sytemctl show gotify-server | grep PID
  * */
@@ -63,7 +63,8 @@ int main(void)
 	}
 
     //org/freedesktop/systemd1
-    systemdCall(connection);
+    //systemdCall(connection,"GetUnit","timers.target");
+    systemdCall(connection,"ListUnits",NULL);
 
 	gotify_message("https://5ccppi.org:4433/message?token=ApPFbwayM5zDXf3","anothertitle","anothermessage");
 
@@ -105,24 +106,21 @@ int gotify_message(char *url,char *title,char *message)
 	return 0;
 }
 
-int systemdCall(DBusConnection *connection)
+int systemdCall(DBusConnection *connection,char *method,char *param)
 {
         
 	DBusError error;
     DBusMessage *msg;
     DBusMessage *ret_msg;
     DBusMessageIter iter;
-
-
+    DBusMessageIter array_iter;
 
     char *reply_msg=NULL;
-    char *param="timers.target";
-    int ret1;
+    int ret1,ret2;
 
 	dbus_error_init(&error);
 
-
-    msg = dbus_message_new_method_call("org.freedesktop.systemd1","/org/freedesktop/systemd1","org.freedesktop.systemd1.Manager","GetUnit");
+    msg = dbus_message_new_method_call("org.freedesktop.systemd1","/org/freedesktop/systemd1","org.freedesktop.systemd1.Manager",method);
     if(NULL == msg)
     {
             fprintf(stderr,"Message null, no message created");
@@ -133,15 +131,20 @@ int systemdCall(DBusConnection *connection)
             printf("message created!\n");
     }
     
-    dbus_message_iter_init_append(msg,&iter);
-    if(!dbus_message_iter_append_basic(&iter,DBUS_TYPE_STRING,&param))
+
+    if(param != NULL)
     {
-            fprintf(stderr,"Error appending");
-            return -1;
-    }
-    else{
-            printf("message appended");
+            dbus_message_iter_init_append(msg,&iter);
+            if(!dbus_message_iter_append_basic(&iter,DBUS_TYPE_STRING,&param))
+            {
+                    fprintf(stderr,"Error appending");
+                    return -1;
+            }
+            else{
+                    printf("message appended\n");
+            }
     }
+
     ret_msg = dbus_connection_send_with_reply_and_block(connection,msg,DBUS_TIMEOUT_INFINITE,&error);
     if(ret_msg == NULL)
     {
@@ -152,11 +155,63 @@ int systemdCall(DBusConnection *connection)
             DBusMessageIter reply_iter;
             dbus_message_iter_init(ret_msg,&reply_iter);
             ret1=dbus_message_iter_get_arg_type(&reply_iter);
-            if(ret1 == *DBUS_TYPE_OBJECT_PATH_AS_STRING)
+
+            while(ret1 != DBUS_TYPE_INVALID)
             {
-                    printf("succesfull received message\narg type %c\n",ret1);
-                    dbus_message_iter_get_basic(&reply_iter,&reply_msg);
-                    printf("returned value: %s\n",reply_msg);
+                    if(ret1 == *DBUS_TYPE_OBJECT_PATH_AS_STRING)
+                    {
+                            printf("succesfull received message\narg type %c\n",ret1);
+                            dbus_message_iter_get_basic(&reply_iter,&reply_msg);
+                            printf("returned value: %s\n",reply_msg);
+                    }
+                    if(ret1 == DBUS_TYPE_STRING)
+                    {
+                            printf("succesfull received message\narg type %c\n",ret1);
+                            dbus_message_iter_get_basic(&reply_iter,&reply_msg);
+                            printf("Received message:%s\n",reply_msg);
+                    }
+                    if(ret1 == DBUS_TYPE_ARRAY)
+                    {
+                            int element_count = dbus_message_iter_get_element_count(&reply_iter);
+                            printf("Array:Elem count %d\n",element_count);
+                            //ret2 = dbus_message_iter_get_element_type(&reply_iter);
+                            dbus_message_iter_recurse(&reply_iter,&array_iter);
+                            int i2=0;
+                            ret2 = dbus_message_iter_get_arg_type(&array_iter);
+                            while(ret2 != DBUS_TYPE_INVALID)
+                            {
+
+                                    //printf("type:%c\n",ret2);
+
+                                            //dbus_message_iter_get_basic(&array_iter,&reply_msg);
+                                    //printf("Received message:%s\n",reply_msg);
+                                    ret2 = dbus_message_iter_get_arg_type(&array_iter);
+                                    
+                                    DBusMessageIter sub_iter;
+                                    int ret3;
+                                    dbus_message_iter_recurse(&array_iter,&sub_iter);
+                                    ret3 = dbus_message_iter_get_arg_type(&sub_iter);
+                                    while(ret3 != DBUS_TYPE_INVALID)
+                                    {
+                                            ret3 = dbus_message_iter_get_arg_type(&sub_iter);
+                                            //printf("arr_sub_iter:%c\n",ret3);
+                                            if(ret3 == DBUS_TYPE_STRING)
+                                            {
+                                                    dbus_message_iter_get_basic(&sub_iter,&reply_msg);
+                                                    printf("-->%s\n",reply_msg);
+                                            }
+                                            ret3=dbus_message_iter_next(&sub_iter);
+                                    }
+
+
+                                   ret2=dbus_message_iter_next(&array_iter);
+                                   i2++;
+                                   //printf("i2:%d\n",i2);
+                             }
+                    }
+                //printf("iter:%c\n",ret1);
+                    ret1=dbus_message_iter_next(&reply_iter);
+
             }
 
     }