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#! /bin/sh
set -e

if [ "$(id -un)" != openssh-tests ]; then
	TMP="$AUTOPKGTEST_TMP/user"
	CREATED_RUN_SSHD=false
	STARTED_HAVEGED=false
	ADDED_HOST=false

	cleanup () {
		if $ADDED_HOST; then
			sed -i '/[[:space:]]UNKNOWN$/d' /etc/hosts
		fi

		if $STARTED_HAVEGED; then
			if [ -d /run/systemd/system ] && \
			   which systemctl >/dev/null 2>&1; then
				systemctl disable haveged || true
				systemctl stop haveged || true
			else
				start-stop-daemon --stop --quiet --oknodo \
					--retry=TERM/30/KILL/5 \
					--pidfile "$AUTOPKGTEST_TMP/haveged.pid" \
					--name haveged
			fi
		fi
		rm -f /etc/sudoers.d/openssh-tests
		if id openssh-tests >/dev/null 2>&1; then
			deluser --remove-home openssh-tests
		fi

		if $CREATED_RUN_SSHD; then
			rm -rf /run/sshd
		fi
	}
	trap cleanup EXIT

	adduser --disabled-password --gecos 'OpenSSH tests' openssh-tests
	usermod -p '*' openssh-tests
	cat >/etc/sudoers.d/openssh-tests <<EOF
openssh-tests ALL = (ALL:ALL) NOPASSWD: ALL
EOF
	chmod 440 /etc/sudoers.d/openssh-tests
	mkdir -p "$TMP"
	chown -R openssh-tests:openssh-tests "$TMP"

	# Depending on how the environment is configured, our test
	# dependency on openssh-server may not actually started sshd and
	# thus may not have caused /run/sshd to be created.
	if [ ! -d /run/sshd ]; then
		mkdir -m755 /run/sshd
		CREATED_RUN_SSHD=:
	fi

	# If we're running in a container, haveged may not have started
	# automatically.
	if [ -d /run/systemd/system ] && which systemctl >/dev/null 2>&1; then
		systemctl enable haveged || true
		systemctl start haveged || true
		STARTED_HAVEGED=:
	elif ! pidof haveged >/dev/null; then
		start-stop-daemon --start --quiet \
			--pidfile "$AUTOPKGTEST_TMP/haveged.pid" \
			--exec /usr/sbin/haveged -- \
			-p "$AUTOPKGTEST_TMP/haveged.pid"
		STARTED_HAVEGED=:
	fi

	# ssh ends up setting PAM_RHOST to "UNKNOWN" during a number of
	# regression tests, which causes DNS resolution delays, slowing down
	# the test suite substantially and causing the connection-timeout
	# tests to fail.  The only way to work around this while running
	# tests with "UsePAM yes" appears to be to make "UNKNOWN"
	# resolvable.
	if ! grep -q '[[:space:]]UNKNOWN$' /etc/hosts; then
		echo '127.0.0.1 UNKNOWN' >>/etc/hosts
		ADDED_HOST=:
	fi

	sudo -u openssh-tests env TMP="$TMP" "$0" "$@"
	exit "$?"
fi

annotate-output +%H:%M:%S.%N /usr/lib/openssh/regress/run-tests "$TMP"