Probe for valid ciphers (modified from an SO response)

cipher.sh

#!/usr/bin/env bash

# OpenSSL requires the port number.
SERVER=$1
PORT=$2
DELAY=1
ciphers=$(openssl ciphers 'ALL:eNULL' | sed -e 's/:/ /g')

echo Obtaining cipher list from $(openssl version).

for cipher in ${ciphers[@]}
do
echo Testing $cipher
result=$(echo -n | openssl s_client -cipher "$cipher" -connect $SERVER:$PORT 2>&1)
if [[ "$result" =~ ":error:" ]] ; then
  error=$(echo -n $result | cut -d':' -f6)
  printf "%-50s \e[31mNO (%s)\e[0m\n" "$cipher ..." "$error"
  #echo -e 
else
  if [[ "$result" =~ "Cipher is ${cipher}" || "$result" =~ "Cipher    :" ]] ; then
    printf "%-50s \e[32mYES\e[0m\n" "$cipher ..."
    #echo -e "\e[32mYES\e[0m"
  else
    echo UNKNOWN RESPONSE
    echo $result
  fi
fi
sleep $DELAY
done