#!/bin/sh
# Hong Kong CMI rollback-only Snell entrypoint.
set -eu

: "${PSK:?PSK is required}"
: "${PORT:?PORT is required}"

case "$PORT" in
  *[!0-9]*|'') echo "PORT must be numeric" >&2; exit 1 ;;
esac

umask 077
cat > /tmp/snell-server.conf <<EOF
[snell-server]
listen = :::${PORT}
psk = ${PSK}
EOF

exec /usr/local/bin/snell-server -c /tmp/snell-server.conf