#!/bin/bash
# This program is a custom mock pinentry program
# It uses whatever password is found in the /tmp directory
# If the password is empty, replies CANCEL causing an error to similate invalid
# credentials
echo "OK Pleased to meet you"
while read -r line; do
  if [[ $line =~ GETPIN ]]; then
    password="$(cat /tmp/mock-password 2>/dev/null)"
    if [ -n "$password" ]; then
      echo -n "D "
      echo "$password"
      echo "OK";
    else
      echo "CANCEL";
    fi
  else
    echo "OK";
  fi
done