7388 Support DHCP Client FQDN. Allow IAID/DUID for all v4.

*** 19,28 ****
--- 19,29 ----
   * CDDL HEADER END
   */
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
+  * Copyright (c) 2016, Chris Fraire <cfraire@me.com>.
   */
  
  #ifndef STATES_H
  #define STATES_H
  
*** 199,208 ****
--- 200,222 ----
           * here between the DISCOVER and the REQUEST.  (v4 only)
           */
          char            *dsm_reqhost;
  
          /*
+          * The host name we've been asked by IPC message (e.g.,
+          * `ipadm -T dhcp -h ...') to request is remembered here until it is
+          * reset by another external message.
+          */
+         char            *dsm_msg_reqhost;
+ 
+         /*
+          * The determined FQDN is remembered here between the DISCOVER/SOLICIT
+          * and the REQUEST.
+          */
+         char            *dsm_reqfqdn;
+ 
+         /*
           * V4 and V6 use slightly different timers.  For v4, we must count
           * seconds from the point where we first try to configure the
           * interface.  For v6, only seconds while performing a transaction
           * matter.
           *