Update.

	* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r): If res_search
	fails don't rely on errno value.
	(getanswer_r): Set *ERRNOP in error cases.

	* sysdeps/posix/getaddrinfo.c (gaih_local): Test protocol and socktype.
	(gaih_inet_serv): Return EIA_NODATA if name is known but has no
	associated data.  Test for matching numeric address and family.
	(getaddrinfo): Remember EAI_NODATA result and return this in case
	everything fails.
	Reported by Arkadiusz Miskiewicz <misiek@misiek.eu.org>.