getaddrinfo: Return EAI_NODATA if gethostbyname2_r reports NO_DATA [BZ #21922]

2 files changed, 14 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index a04985f2c3..2cb929635a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2017-09-01  Florian Weimer  <fweimer@redhat.com>
 
+	[BZ #21922]
+	* sysdeps/posix/getaddrinfo.c (gaih_inet): Report EAI_NODATA error
+	coming from gethostbyname2_r.
+
+2017-09-01  Florian Weimer  <fweimer@redhat.com>
+
 	* support/namespace.h (struct support_chroot_configuration): Add
 	hosts, host_conf.
 	(struct support_chroot): Add path_hosts, path_host_conf.
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index acb5d9e73d..0471a2f624 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -618,6 +618,14 @@ gaih_inet (const char *name, const struct gaih_service *service,
 			}
 		      *pat = addrmem;
 		    }
+		  else
+		    {
+		      if (h_errno == NO_DATA)
+			result = -EAI_NODATA;
+		      else
+			result = -EAI_NONAME;
+		      goto free_and_return;
+		    }
 		}
 	      else
 		{