add HDBGET: that only supports get, iteration doesnt really make sense for the HDB keytab except when dumping

lib/hdb/hdb.h

@@ -287,6 +287,7 @@ struct hdb_print_entry_arg {
 typedef krb5_error_code (*hdb_foreach_func_t)(krb5_context, HDB*,
 					      hdb_entry_ex*, void*);
 extern krb5_kt_ops hdb_kt_ops;
+extern krb5_kt_ops hdb_get_kt_ops;
 
 extern const int hdb_interface_version;
 

lib/hdb/keytab.c

@@ -424,3 +424,19 @@ krb5_kt_ops hdb_kt_ops = {
     NULL,
     0
 };
+
+krb5_kt_ops hdb_get_kt_ops = {
+    "HDBGET",
+    hdb_resolve,
+    hdb_get_name,
+    hdb_close,
+    NULL,
+    hdb_get_entry,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    0
+};

lib/hdb/libhdb-exports.def

@@ -73,6 +73,7 @@ EXPORTS
         initialize_hdb_error_table_r
 
 	hdb_kt_ops
+	hdb_get_kt_ops
 
 ; MIT KDB related entries
         _hdb_mdb_value2entry

lib/hdb/version-script.map

@@ -80,6 +80,7 @@ HEIMDAL_HDB_1.0 {
                 _hdb_mit_dump2mitdb_entry;
 
 		hdb_kt_ops;
+		hdb_get_kt_ops;
 
 		# some random bits needed for libkadm
 		add_HDB_Ext_KeySet;