ffserver.c:661: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `close_connection`.

ffserver.c:661:17: Call
659.                 /* close and free the connection */
660.                 log_connection(c);
661.                 close_connection(c);
                     ^
662.             }
663.         }

ffserver.c:744:1: <LHS trace>
742. }
743. 
744. static void close_connection(HTTPContext *c)
     ^
745. {
746.     HTTPContext **cp, *c1;

ffserver.c:744:1: Global `nb_connections`
  742. }
  743. 
  744. static void close_connection(HTTPContext *c)
       ^
  745. {
  746.     HTTPContext **cp, *c1;

ffserver.c:826:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `close_connection` 
  824.     av_free(c->buffer);
  825.     av_free(c);
  826.     nb_connections--;
           ^
  827. }
  828. 
