external/bsd/dhcpcd/dist/dhcpcd-hooks/50-ypbind

   1 # Sample dhcpcd hook for ypbind
   2 # This script is only suitable for the Linux version.
   3
   4 # Distributions may want to just have their command here instead of this
   5 if [ -x /etc/rc.d/ypbind ]; then
   6         ypbind_restart_cmd="/etc/rc.d/ypbind restart"
   7         ypbind_stop_cmd="/etc/rc.d/ypbind stop"
   8 elif [ -x /usr/local/etc/rc.d/ypbind ]; then
   9         ypbind_restart_cmd="/usr/local/etc/rc.d/ypbind restart"
  10         ypbind_stop_cmd="/usr/local/etc/rc.d/ypbind stop"
  11 fi
  12
  13 ypbind_dir="$state_dir/ypbind"
  14
  15 best_domain()
  16 {
  17         local i=
  18
  19         for i in $interfaces; do
  20                 if [ -e "$ypbind_dir/$i" ]; then
  21                         cat "$ypbind_dir/$i"
  22                 fi
  23         done
  24         return 1
  25 }
  26
  27 make_yp_binding()
  28 {
  29         [ -d "$ypbind_dir" ] || mkdir -p "$ypbind_dir"
  30         echo "$new_nis_domain" >"$ypbind_dir/$interface"
  31         local nd="$(best_domain)"
  32
  33         local cf=/var/yp/binding/"$new_nis_domain".ypservers
  34         if [ -n "$new_nis_servers" ]; then
  35                 local ncf="$cf.$interface" x=
  36                 rm -f "$ncf"
  37                 for x in $new_nis_servers; do
  38                         echo "$x" >>"$ncf"
  39                 done
  40                 change_file "$cf" "$ncf"
  41         else
  42                 # Because this is not an if .. fi then we can use $? below
  43                 [ -e "$cf" ] && rm "$cf"
  44         fi
  45
  46         if [ $? = 0 -o "$nd" != "$(domainname)" ]; then
  47                 domainname "$nd"
  48                 if [ -n "$ypbind_restart_cmd" ]; then
  49                         eval $ypbind_restart_cmd
  50                 fi
  51         fi
  52 }
  53
  54 restore_yp_binding()
  55 {
  56         rm -f "$ypbind_dir/$interface"
  57         local nd="$(best_domain)"
  58         # We need to stop ypbind if there is no best domain
  59         # otherwise it will just stall as we cannot set domainname
  60         # to blank :/
  61         if [ -z "$nd" ]; then
  62                 if [ -n "$ypbind_stop_cmd" ]; then
  63                         eval $ypbind_stop_cmd
  64                 fi
  65         elif [ "$nd" != "$(domainname)" ]; then
  66                 domainname "$nd"
  67                 if [ -n "$ypbind_restart_cmd" ]; then
  68                         eval $ypbind_restart_cmd
  69                 fi
  70         fi
  71 }
  72
  73 case "$reason" in
  74 PREINIT)
  75         rm -f "$ypbind_dir/$interface"
  76         ;;
  77 TEST)
  78         ;;
  79 *)
  80         if [ -n "$new_nis_domain" ]; then
  81                 make_yp_binding
  82         elif [ -n "$old_nis_domain" ]; then
  83                 restore_yp_binding
  84         fi
  85         ;;
  86 esac