Thread: List Reading - Printing

I want to make a list reading the input and i want to print the list after filling it.
I try hard but i can achieve it because i get faults.

This is my list

Code:

struct AkeraiosStruct {
           int Value;
           AkeraiosStruct * next;
} AkeraiosStruct;


void readinglist (AkeraiosStruct * r){
    int i; 
    
    
       r= malloc (sizeof(struct AkeraiosStruct));
       r->next=NULL;

      do{
         i=getchar();
         
         insert_at_end (&r, i);
      
         }while(i!=' ');
}


void insert_at_end (AkeraiosStruct ** ptraddr, int v)
                       /* Insert v as last element of list *ptraddr */
{ while (*ptraddr != NULL)                     /* Go to end of list */
    ptraddr = &((*ptraddr)->next);/* Prepare what we need to change */
  *ptraddr = malloc(sizeof(struct AkeraiosStruct)); /* Space for new node */
  (*ptraddr)->Value = v;                               /* Put value */ 
  (*ptraddr)->next = NULL;              /* There is no next element */
}

void print(AkeraiosStruct * r)                  /* Print elements of list */
{ while (r != NULL) {       /* Visit list elements up to the end */
    printf("%d --> ", r->Value);         /* Print current element */
    r = r->next;                        /* Go to next element */
  }
  printf("NULL\n");                            /* Print end of list */
}

int main (void){
    AkeraiosStruct * A;

            printf("Give the First number and put space at the end\n\n");
            A=NULL;
            readinglist (A);
            print(A);

return 0;
}

I can debugg it.

Thanks!