当我传递一个数组（一个哈希表）来将它更新为另一个函数时，我没有将更新的表更新回main

typedef struct hashtable
{
      char str[15];
      struct hashtable *next;
}htable; 

int hashkey(char *str)
{
      //correctly returns hash key
}

int hash(htable * ht, char  str[15], int key)
{
     //error checking done

     if(ht[key].next==NULL)
     {
          htable * temp = (htable *)malloc(sizeof(ht));
          strncpy(temp->str, str,15);

          temp->next = NULL;
                //printf("%s %d\n",temp->str,key);
          ht[key].next = temp;
               //printf("%s %d\n",ht[key].next->str,key);
          return 1;
      }

}       
void main()
{

    int cnt=0,key;
    FILE *fp = fopen("Keywords.txt","r");

    if(fp==NULL)
    {
        printf("Error\n");
        return;
    }

   while(fgetc(fp)!=EOF)
        cnt++;

   htable ht[cnt];
   char aa[15];
   rewind(fp);

   while(fgets(aa,15,fp))
   { 
        key=hashkey(aa);    

        if(hash(ht,aa,key))
        {
               printf("%s %d\n",ht[key].str,key);
        }           
   }


}
typedef struct hashtable
{
      char str[15];