APR_MSG_PEEK     2203 modules/proxy/proxy_util.c #if !defined(APR_MSG_PEEK) && defined(MSG_PEEK)
APR_MSG_PEEK     2207 modules/proxy/proxy_util.c #if USE_ALTERNATE_IS_CONNECTED && defined(APR_MSG_PEEK)
APR_MSG_PEEK     2232 modules/proxy/proxy_util.c         status = apr_socket_recvfrom(&unused, socket, APR_MSG_PEEK,