#!/bin/sh

# quick hack for starting pcscd
# nur für Kartenleser benötigkt, die nicht von dem gnupg-internen ccid unterstützt werden
mkdir -p /var/run
pcscd &

decrypt_gpg () {
        echo "Performing GPG key decryption ..." >&2
        if ! /lib/cryptsetup/askpass \
                "Enter smartcard PIN or passphrase for key $1: " | \
                /usr/bin/gpg -q --batch --homedir "$(dirname $1)" \
                --trustdb-name /dev/null --passphrase-fd 0 --decrypt $1; then
                return 1
        fi
        return 0
}

if [ ! -x /usr/bin/gpg ]; then
        echo "$0: /usr/bin/gpg is not available" >&2
        exit 1
fi

if [ -z "$1" ]; then
        echo "$0: missing key as argument" >&2
        exit 1
fi

decrypt_gpg "$1"
exit $?