addrcheck, mkcdb: Check sender addresses for validity in addrcheck.

[newsgate] / bin / addrcheck

#! /bin/sh

set -e
kind=${1?kind}
tail=${2?tail}
sender=${3?sender}

##bad () { echo "-$*"; exit 0; }
bad () { 
  echo "consider reject to $kind:$tail from $sender ($*)" >>addrcheck.log"
  echo "+just this once"
  exit 0
}

entry=`cdb -q groups.cdb "$kind:$tail"` || bad "bad tag $tail"
set -- $entry
case $kind in
  g)
    SENDER=$sender check-sender <auth.cdb 2>/dev/null || 
      bad "invalid sender $sender"
    ;;
  t)
    echo $sender
    echo "$4"
    case "$sender" in $4) ;; *) bad "incorrect sender $sender" ;; esac
    ;;
esac
echo +