NEX-16134 HostName change using API is not persistent through a reboot
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Rick McNeal <rick.mcneal@nexenta.com>
Reviewed by: Rob Gittins <rob.gittins@nexenta.com>

*** 25,35 ****
  #
  #
  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # ident "%Z%%M% %I%     %E% SMI"
  
  . /lib/svc/share/smf_include.sh
  . /lib/svc/share/net_include.sh
  
  # Make sure that the libraries essential to this stage of booting can be found.
--- 25,35 ----
  #
  #
  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright 2018 Nexenta Systems Inc. 
  
  . /lib/svc/share/smf_include.sh
  . /lib/svc/share/net_include.sh
  
  # Make sure that the libraries essential to this stage of booting can be found.
*** 52,62 ****
  #
  
  smf_netstrategy
  
  case "$_INIT_NET_STRATEGY" in
!         "dhcp") hostname=`/sbin/dhcpinfo Hostname` ;;
          "rarp") hostname=`/sbin/hostconfig -h -p bootparams`
                  trap 'intr=1' 2 3
                  while [ -z "$hostname" -a ! -f /etc/.UNCONFIGURED -a \
                      -z "$intr" ]; do
                          echo "re-trying host configuration..."
--- 52,67 ----
  #
  
  smf_netstrategy
  
  case "$_INIT_NET_STRATEGY" in
!         "dhcp") if [ -s /etc/nodename ]; then
!                         hostname=`shcat /etc/nodename 2>/dev/null`
!                 else
!                         hostname=`/sbin/dhcpinfo Hostname`
!                 fi
!                         ;;
          "rarp") hostname=`/sbin/hostconfig -h -p bootparams`
                  trap 'intr=1' 2 3
                  while [ -z "$hostname" -a ! -f /etc/.UNCONFIGURED -a \
                      -z "$intr" ]; do
                          echo "re-trying host configuration..."