1 # Sample dhcpcd hook for ypbind 2 # This script is only suitable for the BSD versions. 3 4 : ${ypbind_restart_cmd:=service_command ypbind restart} 5 : ${ypbind_stop_cmd:=service_condcommand ypbind stop} 6 ypbind_dir="$state_dir/ypbind" 7 : ${ypdomain_dir:=@YPDOMAIN_DIR@} 8 : ${ypdomain_suffix:=@YPDOMAIN_SUFFIX@} 9 10 11 best_domain() 12 { 13 local i= 14 15 for i in "$ypbind_dir/$interface_order".*; do 16 if [ -f "$i" ]; then 17 cat "$i" 18 return 0 19 fi 20 done 21 return 1 22 } 23 24 make_yp_binding() 25 { 26 [ -d "$ypbind_dir" ] || mkdir -p "$ypbind_dir" 27 echo "$new_nis_domain" >"$ypbind_dir/$ifname" 28 29 if [ -z "$ypdomain_dir" ]; then 30 false 31 else 32 local cf="$ypdomain_dir/$new_nis_domain$ypdomain_suffix" 33 if [ -n "$new_nis_servers" ]; then 34 local ncf="$cf.$ifname" x= 35 rm -f "$ncf" 36 for x in $new_nis_servers; do 37 echo "$x" >>"$ncf" 38 done 39 change_file "$cf" "$ncf" 40 else 41 [ -e "$cf" ] && rm "$cf" 42 fi 43 fi 44 45 local nd="$(best_domain)" 46 if [ $? = 0 -a "$nd" != "$(domainname)" ]; then 47 domainname "$nd" 48 if [ -n "$ypbind_restart_cmd" ]; then 49 eval $ypbind_restart_cmd 50 fi 51 fi 52 } 53 54 restore_yp_binding() 55 { 56 57 rm -f "$ypbind_dir/$ifname" 58 local nd="$(best_domain)" 59 # We need to stop ypbind if there is no best domain 60 # otherwise it will just stall as we cannot set domainname 61 # to blank :/ 62 if [ -z "$nd" ]; then 63 if [ -n "$ypbind_stop_cmd" ]; then 64 eval $ypbind_stop_cmd 65 fi 66 elif [ "$nd" != "$(domainname)" ]; then 67 domainname "$nd" 68 if [ -n "$ypbind_restart_cmd" ]; then 69 eval $ypbind_restart_cmd 70 fi 71 fi 72 } 73 74 if [ "$reason" = PREINIT ]; then 75 rm -f "$ypbind_dir/$interface".* 76 elif $if_up || $if_down; then 77 if [ -n "$new_nis_domain" ]; then 78 if valid_domainname "$new_nis_domain"; then 79 make_yp_binding 80 else 81 syslog err "Invalid NIS domain name: $new_nis_domain" 82 fi 83 elif [ -n "$old_nis_domain" ]; then 84 restore_yp_binding 85 fi 86 fi 87
