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genstatic
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1996-10-25
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1KB
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56 lines
#!/bin/sh
# @(#) genstatic 1.4 92/08/31 @(#)
# generate the static hosttable from database files
# called from updatehosts
#
# files used
# hosts.local
# hosts.main
# hosts.cname
# Copyright (c) 1992 by Texas Internet Consulting
# This code may be freely copied and used so long as this
# copyright notice is attached. This code may not be sold
# without the express written permission of Texas Internet Consulting.
# Texas Internet Consulting makes no warranty as to the correctness
# nor the applicability of this code for any purpose.
# this cannot be /etc/hosts
HOSTS=hosts.static
SERIAL=serial
PATH=.:$PATH
# put the serial number of this table as the first line
serial=`cat $SERIAL`
echo "# $serial" >$HOSTS
# extract host name and IP address from hosts.main
readinfo ip host <hosts.main | awk '
{
# split up the domain name
n = split($2, domain, ".")
printf("%s %s %s\n", $1, $2, domain[1])
}' >>$HOSTS
# build edit script for aliases
readinfo host alias <hosts.cname | awk '
{
# extract simple alias name from domain name
n = split($2, alias, ".")
# split up the domain name
n = split($1, domain, ".")
# build the edit command for this line
# will look like /<domain>/s/$/<alias> <alias.domain>/
edcmd = "/" domain[1]
# replace "." with "\."
for (i=2; i<=n; i++) {
edcmd = edcmd "\\." domain[i]
}
edcmd = edcmd "/s/$/ " $2 " " alias[1] "/"
print edcmd
}
END {
print "w"
print "q"
}' | ed >/dev/null 2>&1 $HOSTS