commit cf26a0cb6a0bbaca46a01ddad6662e5e5159a32a

Author: Siddhesh Poyarekar <siddhesh@redhat.com>

Date:   Thu May 15 12:33:11 2014 +0530

    Return EAI_AGAIN for AF_UNSPEC when herrno is TRY_AGAIN (BZ #16849)

    getaddrinfo correctly returns EAI_AGAIN for AF_INET and AF_INET6

    queries.  For AF_UNSPEC however, an older change

    (a682a1bf553b1efe4dbb03207fece5b719cec482) broke the check and due to

    that the returned error was EAI_NONAME.

    This patch fixes the check so that a non-authoritative not-found is

    returned as EAI_AGAIN to the user instead of EAI_NONAME.

diff --git glibc-2.17-c758a686/sysdeps/posix/getaddrinfo.c glibc-2.17-c758a686/sysdeps/posix/getaddrinfo.c

index 6258330..8f392b9 100644

--- glibc-2.17-c758a686/sysdeps/posix/getaddrinfo.c

+++ glibc-2.17-c758a686/sysdeps/posix/getaddrinfo.c

@@ -867,8 +867,7 @@ gaih_inet (const char *name, const struct gaih_service *service,

 		      if (status != NSS_STATUS_TRYAGAIN

 			  || rc != ERANGE || herrno != NETDB_INTERNAL)

 			{

-			  if (status == NSS_STATUS_TRYAGAIN

-			      && herrno == TRY_AGAIN)

+			  if (herrno == TRY_AGAIN)

 			    no_data = EAI_AGAIN;

 			  else

 			    no_data = herrno == NO_DATA;