SURBL-Abfrage für Domains (verbesserte Version)

#!/bin/sh
########################################################################
#
# surbl
# $Id: surbl,v 1.4 2023/12/22 10:58:17 elias Exp $
#
# Send queries to SURBL.
#
# Requires dig and gawk. (Does the good old awk perform bitwise ops?)
#
########################################################################

if test -t 1
then
    term=1
else
    term=0
fi

for domain
do
    result=`dig ${domain}.multi.surbl.org |
    sed -e '/^;/d' -e '/^\s*$/d' -e '/SOA/d' -e 's/.*\.\(.*$\)/\1/'`
    echo $domain $result
done |
gawk '
BEGIN {
  term = '$term'
  if (term) {
    red="\033[1;31m"
    green="\033[1;32m"
    norm="\033[0m"
  } else {
    red=""
    green=""
    norm=""
  }
}
{
  if(!$2) $2 = 0
  printf("%s\t", $1)
  if ($2)           { printf("%sLISTED:%s ", red, norm) }
  if (and($2, 4))   { printf("DM ") }
  if (and($2, 8))   { printf("PH ") }
  if (and($2, 16))  { printf("MW ") }
  if (and($2, 32))  { printf("CT ") }
  if (and($2, 64))  { printf("ABUSE ") }
  if (and($2, 128)) { printf("CR ") }
  if (!$2)          { printf("%sokay%s", green, norm) }
  printf("\n")
}'