* nscd/nscd_helper.c (get_mapping): Handle short replies instead

	of crashing.  When this is the case or if the reply is malformed,
	don't try to close the new file descriptor since it does not
	exist.
	Patch in part by Guillaume Chazarain <guichaz@yahoo.fr>.

2 files changed, 13 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index 4c62a99c50..6b20f8fd57 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2007-05-29  Ulrich Drepper  <drepper@redhat.com>
+
+	* nscd/nscd_helper.c (get_mapping): Handle short replies instead
+	of crashing.  When this is the case or if the reply is malformed,
+	don't try to close the new file descriptor since it does not
+	exist.
+	Patch in part by Guillaume Chazarain <guichaz@yahoo.fr>.
+
 2007-05-21  Ulrich Drepper  <drepper@redhat.com>
 
 	* sysdeps/x86_64/cacheinfo.c (init_cacheinfo): Pass correct value
diff --git a/nscd/nscd_helper.c b/nscd/nscd_helper.c
index 1f56ccf6aa..79644a4da1 100644
--- a/nscd/nscd_helper.c
+++ b/nscd/nscd_helper.c
@@ -269,11 +269,12 @@ get_mapping (request_type type, const char *key,
 			!= keylen, 0))
     goto out_close2;
 
-  mapfd = *(int *) CMSG_DATA (cmsg);
+  if (__builtin_expect (CMSG_FIRSTHDR (&msg) == NULL
+			|| (CMSG_FIRSTHDR (&msg)->cmsg_len
+			    != CMSG_LEN (sizeof (int))), 0))
+    goto out_close2;
 
-  if (__builtin_expect (CMSG_FIRSTHDR (&msg)->cmsg_len
-			!= CMSG_LEN (sizeof (int)), 0))
-    goto out_close;
+  mapfd = *(int *) CMSG_DATA (cmsg);
 
   struct stat64 st;
   if (__builtin_expect (strcmp (resdata, key) != 0, 0)