Thread: adding to middle of linked list

I'm trying to make a function that lets me pass an index and a string and will insert the string at that index in the linkedlist... here is so function i have so far, but am stuck and don't know where to go from here, any help would be appreciated!

Code:

typedef struct node {
  char* value;
  struct node* next;
} LinkedList;
 
 
void llAddAtIndex(LinkedList** ll, char* value, int index) {
 
  LinkedList* newNode =(LinkedList*)malloc(sizeof(LinkedList));
  newNode->value = value;
  LinkedList* prevNode = NULL;
  LinkedList p;
  p = ?????
   
  for(int i = 0; i < index; i++){
      prevNode = p;
    p = p->next;
  }
    if (prevNode) { 
      prevNode->next = newNode;
      newNode->next = p;
    } else { 
        head = newNode;
        newNode->next = p;
      }
}