#	$OpenBSD: keys-command.sh,v 1.2 2012/12/06 06:06:54 dtucker Exp $
#	Placed in the Public Domain.

tid="authorized keys from command"

if [ -z "$SUDO" ]; then
	fatal "need SUDO to create file in /var/run, test won't work without"
fi

# Establish a AuthorizedKeysCommand in /var/run where it will have
# acceptable directory permissions.
KEY_COMMAND="/var/run/keycommand_${LOGNAME}"
cat << _EOF | $SUDO sh -c "cat > '$KEY_COMMAND'"
#!/bin/sh
test "x\$1" != "x${LOGNAME}" && exit 1
exec cat "$OBJ/authorized_keys_${LOGNAME}"
_EOF
$SUDO chmod 0755 "$KEY_COMMAND"

cp $OBJ/sshd_proxy $OBJ/sshd_proxy.bak
(
	grep -vi AuthorizedKeysFile $OBJ/sshd_proxy.bak
	echo AuthorizedKeysFile none
	echo AuthorizedKeysCommand $KEY_COMMAND
	echo AuthorizedKeysCommandUser ${LOGNAME}
) > $OBJ/sshd_proxy

if [ -x $KEY_COMMAND ]; then
	${SSH} -F $OBJ/ssh_proxy somehost true
	if [ $? -ne 0 ]; then
		fail "connect failed"
	fi
else
	echo "SKIPPED: $KEY_COMMAND not executable (/var/run mounted noexec?)"
fi

$SUDO rm -f $KEY_COMMAND