      Accounting client

common functions:

tac_connect -
  initiate connect to tacacs server
  return struct session* value
  
  struct session*
  tac_connect(  const char *peer,     - IP address of TACACS+ server
                int timeout,          - connection timeout (sec)
                const char *key,      - MD5 key
                int port)             - port, if 0 its set to 49
   
tac_close -
  close connection from server
  tac_close(struct session *session);


accounting

