#!/bin/sh
#
# Generate a krb5.conf file with an [appdefault] krb5-strength section that
# contains all the key/value pairs given on the command line.  This script is
# used by C tests to set up the environment.
#
# Written by Russ Allbery <eagle@eyrie.org>
# Copyright 2009, 2013
#     The Board of Trustees of the Leland Stanford Junior University
#
# SPDX-License-Identifier: MIT

set -e

# Command-line arguments are the source krb5.conf template, the directory into
# which to write the resulting krb5.conf file, and then any number of key and
# value pairs to put into krb5.conf.
source="$1"
tmpdir="$2"
if [ -z "$tmpdir" ] ; then
    echo 'Syntax: make-krb5-conf <source> <tmpdir> <key> <value> ...' >&2
    exit 1
fi
shift
shift

# Copy over the template and ensure it's writable.
cp "$source" "$tmpdir"/krb5.conf
chmod 644 "$tmpdir"/krb5.conf

# Add the appdefaults section.
cat <<EOF >>"$tmpdir"/krb5.conf

[appdefaults]
    krb5-strength = {
EOF

# Add the key-value pairs.
while [ -n "$1" ] ; do
    echo "        $1 = $2" >>"$tmpdir"/krb5.conf
    shift
    shift
done

# End the appdefaults section.
echo '    }' >>"$tmpdir"/krb5.conf

# Done.
exit 0