struct temp *node = NULL;

   __________                                     _________
1) |        | --------------|                     | NULL  |
   |__1002__|               |-------------------> |_______|
 
     node                                              1002

here 1002 is memory address of NULL



2) 
  _________
  |        | 
  | NULL   |
  |________|

    node


i think from your words 2) is the correct