#!/bin/bash

# Copyright (c) 2003 Joachim Breitner
# 
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


# This little script prints those keys in yourkeyring that are 
# fully trusted but not signed by you, which means they got their
# trust by being singed by people that you put ownertrust in.

ownid=$(gpg --with-colons --list-secret-keys|grep ^sec|cut -d: -f 5|paste -s -d '\|')

for key in $(gpg --no-secmem-warning --list-keys --with-colons|grep ^pub:f|cut -d: -f 5)
do
  gpg --no-secmem-warning --with-colons --list-sigs $key |cut -d: -f 5|grep -q $ownid || echo $key
done | xargs --no-run-if-empty -n 3 gpg --list-keys --no-secmem-warning|grep ^pub

# Thx to youam (Uli Martens) for valuable ideas and hints

# This was a quick hack, improvement ideas are welcome.