[svn-r10620] Purpose:

    Bug fix

Description:
    Opening a dataset (or named datatype) with "." for the name and using a
group ID for the location ID was not returning an error value.

Solution:
    Check the type of the object before attempting to open it (internally,
using a group ID and "." for the name maps to the group object).

Platforms tested:
    FreeBSD 4.11 (sleipnir)
    Solaris 2.9 (shanti)
    Too minor to require h5committest

1 files changed, 4 insertions, 0 deletions

diff --git a/src/H5T.c b/src/H5T.c
index fe4e9c3..bc20caf 100644
--- a/src/H5T.c
+++ b/src/H5T.c
@@ -1578,6 +1578,10 @@ H5Topen(hid_t loc_id, const char *name)
     if (H5G_find (loc, name, NULL, &ent/*out*/, dxpl_id)<0)
         HGOTO_ERROR (H5E_DATATYPE, H5E_NOTFOUND, FAIL, "not found");
 
+    /* Check that the object found is the correct type */
+    if (H5G_get_type(&ent, dxpl_id) != H5G_TYPE)
+        HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "not a named datatype")
+
     /* Open it */
     if ((type=H5T_open (&ent, dxpl_id)) ==NULL)
         HGOTO_ERROR (H5E_DATATYPE, H5E_CANTOPENOBJ, FAIL, "unable to open named data type");