libexec/bootpd/ConvOldTab.sh

   1 #!/bin/sh
   2 #   convert_bootptab    Jeroen.Scheerder@let.ruu.nl 02/25/94
   3 #       This script can be used to convert bootptab files in old format
   4 #       to new (termcap-like) bootptab files
   5 #
   6 # The old format - real entries are commented out by '###'
   7 #
   8 # Old-style bootp files consist of two sections.
   9 # The first section has two entries:
  10 # First, a line that specifies the home directory
  11 # (where boot file paths are relative to)
  12
  13 ###/tftpboot
  14
  15 # The next non-empty non-comment line specifies the default bootfile
  16
  17 ###no-file
  18
  19 # End of first section - indicated by '%%' at the start of the line
  20
  21 ###%%
  22
  23 # The remainder of this file contains one line per client
  24 # interface with the information shown by the table headings
  25 # below. The host name is also tried as a suffix for the
  26 # bootfile when searching the home directory (that is,
  27 # bootfile.host)
  28 #
  29 # Note that htype is always 1, indicating the hardware type Ethernet.
  30 # Conversion therefore always yields ':ha=ether:'.
  31 #
  32 # host  htype   haddr   iaddr   bootfile
  33 #
  34
  35 ###somehost     1       00:0b:ad:01:de:ad       128.128.128.128 dummy
  36
  37 # That's all for the description of the old format.
  38 # For the new-and-improved format, see bootptab(5).
  39
  40 set -u$DX
  41
  42 case $#
  43 in      2 )     OLDTAB=$1 ; NEWTAB=$2 ;;
  44         * )     echo "Usage: `basename $0` <Input> <Output>"
  45                 exit 1
  46 esac
  47
  48 if [ ! -r $OLDTAB ]
  49 then
  50         echo "`basename $0`: $OLDTAB does not exist or is unreadable."
  51         exit 1
  52 fi
  53
  54 if touch $NEWTAB 2> /dev/null
  55 then
  56         :
  57 else
  58         echo "`basename $0`: cannot write to $NEWTAB."
  59         exit 1
  60 fi
  61
  62
  63 cat << END_OF_HEADER >> $NEWTAB
  64 # /etc/bootptab: database for bootp server (/etc/bootpd)
  65 # This file was generated automagically
  66
  67 # Blank lines and lines beginning with '#' are ignored.
  68 #
  69 # Legend:       (see bootptab.5)
  70 #       first field -- hostname (not indented)
  71 #       bf -- bootfile
  72 #       bs -- bootfile size in 512-octet blocks
  73 #       cs -- cookie servers
  74 #       df -- dump file name
  75 #       dn -- domain name
  76 #       ds -- domain name servers
  77 #       ef -- extension file
  78 #       gw -- gateways
  79 #       ha -- hardware address
  80 #       hd -- home directory for bootfiles
  81 #       hn -- host name set for client
  82 #       ht -- hardware type
  83 #       im -- impress servers
  84 #       ip -- host IP address
  85 #       lg -- log servers
  86 #       lp -- LPR servers
  87 #       ns -- IEN-116 name servers
  88 #       ra -- reply address
  89 #       rl -- resource location protocol servers
  90 #       rp -- root path
  91 #       sa -- boot server address
  92 #       sm -- subnet mask
  93 #       sw -- swap server
  94 #       tc -- template host (points to similar host entry)
  95 #       td -- TFTP directory
  96 #       to -- time offset (seconds)
  97 #       ts -- time servers
  98 #       vm -- vendor magic number
  99 #       Tn -- generic option tag n
 100 #
 101 # Be careful about including backslashes where they're needed.  Weird (bad)
 102 # things can happen when a backslash is omitted where one is intended.
 103 # Also, note that generic option data must be either a string or a
 104 # sequence of bytes where each byte is a two-digit hex value.
 105
 106 # First, we define a global entry which specifies the stuff every host uses.
 107 # (Host name lookups are relative to the domain: your.domain.name)
 108
 109 END_OF_HEADER
 110
 111 # Fix up HW addresses in aa:bb:cc:dd:ee:ff and aa-bb-cc-dd-ee-ff style first
 112 # Then awk our stuff together
 113 sed -e  's/[:-]//g' < $OLDTAB | \
 114 nawk 'BEGIN     { PART = 0 ; FIELD=0 ; BOOTPATH="unset" ; BOOTFILE="unset" }
 115         /^%%/   {
 116                                 PART = 1
 117                                 printf ".default:\\\n\t:ht=ether:\\\n\t:hn:\\\n\t:dn=your.domain.name:\\\n\t:ds=your,dns,servers:\\\n\t:sm=255.255.0.0:\\\n\t:hd=%s:\\\n\t:rp=%s:\\\n\t:td=%s:\\\n\t:bf=%s:\\\n\t:to=auto:\n\n", BOOTPATH, BOOTPATH, BOOTPATH, BOOTFILE
 118                                 next
 119                         }
 120         /^$/    { next }
 121         /^#/    { next }
 122                 {
 123                         if ( PART == 0 && FIELD < 2 )
 124                         {
 125                                 if ( FIELD == 0 ) BOOTPATH=$1
 126                                 if ( FIELD == 1 ) BOOTFILE=$1
 127                                 FIELD++
 128                         }
 129                 }
 130                 {
 131                         if ( PART == 1 )
 132                         {
 133                                 HOST=$1
 134                                 HA=$3
 135                                 IP=$4
 136                                 BF=$5
 137                                 printf "%s:\\\n\t:tc=.default:\\\n\t:ha=0x%s:\\\n\t:ip=%s:\\\n\t:bf=%s:\n", HOST, HA, IP, BF
 138                         }
 139                 }' >> $NEWTAB
 140
 141 exit 0