Handle missing NSS modules and those without callbacks.

getaddrinfo didn't update the status variable in that round of the
loop if no callback was used.

ChangeLog

@@ -1,5 +1,9 @@
 2009-07-25  Ulrich Drepper  <drepper@redhat.com>
 
+	[BZ #10448]
+	* sysdeps/posix/getaddrinfo.c (gaih_inet): If NSS module contains no
+	callback we must touch the status to avoid using stale value.
+
 	* sysdeps/x86_64/multiarch/strcmp.S: Exclude unused code from being
 	compiled in.
 

sysdeps/posix/getaddrinfo.c

@@ -833,6 +833,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
 			       && inet6_status != NSS_STATUS_UNAVAIL)
 			status = inet6_status;
 		    }
+		  else
+		    status = NSS_STATUS_UNAVAIL;
 		}
 
 	      if (nss_next_action (nip, status) == NSS_ACTION_RETURN)