* nis/nis_xdr.c: Remove unnecessary cast which might hide bugs.

	Rearrange code.  This reduces the code size 10%.

1 files changed, 259 insertions, 245 deletions

diff --git a/nis/nis_xdr.c b/nis/nis_xdr.c
index 2a75505..5599b55 100644
--- a/nis/nis_xdr.c
+++ b/nis/nis_xdr.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (c) 1997, 1998, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
 
@@ -28,383 +28,401 @@
 static bool_t
 xdr_nis_attr (XDR *xdrs, nis_attr *objp)
 {
-  if (!xdr_string (xdrs, &objp->zattr_ndx, ~0))
-    return FALSE;
-  if (!xdr_bytes (xdrs, (char **) &objp->zattr_val.zattr_val_val,
-		  (u_int *) & objp->zattr_val.zattr_val_len, ~0))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_string (xdrs, &objp->zattr_ndx, ~0);
+  if (__builtin_expect (res, TRUE))
+    res = xdr_bytes (xdrs, (char **) &objp->zattr_val.zattr_val_val,
+		     &objp->zattr_val.zattr_val_len, ~0);
+  return res;
 }
 
 bool_t
 _xdr_nis_name (XDR *xdrs, nis_name *objp)
 {
-  if (!xdr_string (xdrs, objp, ~0))
-    return FALSE;
-  return TRUE;
+  return xdr_string (xdrs, objp, ~0);
 }
 
 static bool_t
 xdr_zotypes (XDR *xdrs, zotypes *objp)
 {
-  if (!xdr_enum (xdrs, (enum_t *) objp))
-    return FALSE;
-  return TRUE;
+  return xdr_enum (xdrs, (enum_t *) objp);
 }
 
 static bool_t
 xdr_nstype (XDR *xdrs, nstype *objp)
 {
-  if (!xdr_enum (xdrs, (enum_t *) objp))
-    return FALSE;
-  return TRUE;
+  return xdr_enum (xdrs, (enum_t *) objp);
 }
 
 static bool_t
 xdr_oar_mask (XDR *xdrs, oar_mask *objp)
 {
-  if (!xdr_u_int (xdrs, &objp->oa_rights))
-    return FALSE;
-  if (!xdr_zotypes (xdrs, &objp->oa_otype))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_u_int (xdrs, &objp->oa_rights);
+  if (__builtin_expect (res, TRUE))
+    res = xdr_zotypes (xdrs, &objp->oa_otype);
+  return res;
 }
 
 static bool_t
 xdr_endpoint (XDR *xdrs, endpoint *objp)
 {
-  if (!xdr_string (xdrs, &objp->uaddr, ~0))
-    return FALSE;
-  if (!xdr_string (xdrs, &objp->family, ~0))
-    return FALSE;
-  if (!xdr_string (xdrs, &objp->proto, ~0))
-    return FALSE;
-  return TRUE;
+  bool_t res =  xdr_string (xdrs, &objp->uaddr, ~0);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_string (xdrs, &objp->family, ~0);
+      if (__builtin_expect (res, 1))
+	res = xdr_string (xdrs, &objp->proto, ~0);
+    }
+  return res;
 }
 
 bool_t
 _xdr_nis_server (XDR *xdrs, nis_server *objp)
 {
-  if (!_xdr_nis_name (xdrs, &objp->name))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->ep.ep_val, (u_int *) &objp->ep.ep_len,
-		  ~0, sizeof (endpoint), (xdrproc_t) xdr_endpoint))
-    return FALSE;
-  if (!xdr_u_int (xdrs, &objp->key_type))
-    return FALSE;
-  if (!xdr_netobj (xdrs, &objp->pkey))
-    return FALSE;
-  return TRUE;
+  bool_t res = _xdr_nis_name (xdrs, &objp->name);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_array (xdrs, (char **) &objp->ep.ep_val, &objp->ep.ep_len,
+		       ~0, sizeof (endpoint), (xdrproc_t) xdr_endpoint);
+      if (__builtin_expect (res, TRUE))
+	{
+	  res = xdr_u_int (xdrs, &objp->key_type);
+	  if (__builtin_expect (res, TRUE))
+	    res = xdr_netobj (xdrs, &objp->pkey);
+	}
+    }
+  return res;
 }
 
 bool_t
 _xdr_directory_obj (XDR *xdrs, directory_obj *objp)
 {
-  if (!_xdr_nis_name (xdrs, &objp->do_name))
-    return FALSE;
-  if (!xdr_nstype (xdrs, &objp->do_type))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->do_servers.do_servers_val,
-		  (u_int *) & objp->do_servers.do_servers_len, ~0,
-		  sizeof (nis_server), (xdrproc_t) _xdr_nis_server))
-    return FALSE;
-
-  if (!xdr_uint32_t (xdrs, &objp->do_ttl))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->do_armask.do_armask_val,
-		  (u_int *) & objp->do_armask.do_armask_len, ~0,
-		  sizeof (oar_mask), (xdrproc_t) xdr_oar_mask))
-    return FALSE;
-  return TRUE;
+  bool_t res = _xdr_nis_name (xdrs, &objp->do_name);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_nstype (xdrs, &objp->do_type);
+      if (__builtin_expect (res, TRUE))
+	{
+	  res = xdr_array (xdrs, (char **) &objp->do_servers.do_servers_val,
+			   &objp->do_servers.do_servers_len, ~0,
+			   sizeof (nis_server), (xdrproc_t) _xdr_nis_server);
+	  if (__builtin_expect (res, TRUE))
+	    {
+	      res = xdr_uint32_t (xdrs, &objp->do_ttl);
+	      if (__builtin_expect (res, TRUE))
+		res = xdr_array (xdrs,
+				 (char **) &objp->do_armask.do_armask_val,
+				 &objp->do_armask.do_armask_len, ~0,
+				 sizeof (oar_mask), (xdrproc_t) xdr_oar_mask);
+	    }
+	}
+    }
+  return res;
 }
 
 static bool_t
 xdr_entry_col (XDR *xdrs, entry_col *objp)
 {
-  if (!xdr_u_int (xdrs, &objp->ec_flags))
-    return FALSE;
-  if (!xdr_bytes (xdrs, (char **) &objp->ec_value.ec_value_val,
-		  (u_int *) &objp->ec_value.ec_value_len, ~0))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_u_int (xdrs, &objp->ec_flags);
+  if (__builtin_expect (res, TRUE))
+    res = xdr_bytes (xdrs, (char **) &objp->ec_value.ec_value_val,
+		     &objp->ec_value.ec_value_len, ~0);
+  return res;
 }
 
 static bool_t
 xdr_entry_obj (XDR *xdrs, entry_obj *objp)
 {
-  if (!xdr_string (xdrs, &objp->en_type, ~0))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->en_cols.en_cols_val,
-		  (u_int *) &objp->en_cols.en_cols_len, ~0,
-		  sizeof (entry_col), (xdrproc_t) xdr_entry_col))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_string (xdrs, &objp->en_type, ~0);
+  if (__builtin_expect (res, TRUE))
+    res = xdr_array (xdrs, (char **) &objp->en_cols.en_cols_val,
+		     &objp->en_cols.en_cols_len, ~0,
+		     sizeof (entry_col), (xdrproc_t) xdr_entry_col);
+  return res;
 }
 
 static bool_t
 xdr_group_obj (XDR *xdrs, group_obj *objp)
 {
-  if (!xdr_u_int (xdrs, &objp->gr_flags))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->gr_members.gr_members_val,
-		  (u_int *) &objp->gr_members.gr_members_len, ~0,
-		  sizeof (nis_name), (xdrproc_t) _xdr_nis_name))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_u_int (xdrs, &objp->gr_flags);
+  if (__builtin_expect (res, TRUE))
+    res = xdr_array (xdrs, (char **) &objp->gr_members.gr_members_val,
+		     &objp->gr_members.gr_members_len, ~0,
+		     sizeof (nis_name), (xdrproc_t) _xdr_nis_name);
+  return res;
 }
 
 static bool_t
 xdr_link_obj (XDR *xdrs, link_obj *objp)
 {
-  if (!xdr_zotypes (xdrs, &objp->li_rtype))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->li_attrs.li_attrs_val,
-		  (u_int *) &objp->li_attrs.li_attrs_len, ~0,
-		  sizeof (nis_attr), (xdrproc_t) xdr_nis_attr))
-    return FALSE;
-  if (!_xdr_nis_name (xdrs, &objp->li_name))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_zotypes (xdrs, &objp->li_rtype);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_array (xdrs, (char **) &objp->li_attrs.li_attrs_val,
+		       &objp->li_attrs.li_attrs_len, ~0,
+		       sizeof (nis_attr), (xdrproc_t) xdr_nis_attr);
+      if (__builtin_expect (res, TRUE))
+	res = _xdr_nis_name (xdrs, &objp->li_name);
+    }
+  return res;
 }
 
 static bool_t
 xdr_table_col (XDR *xdrs, table_col *objp)
 {
-  if (!xdr_string (xdrs, &objp->tc_name, 64))
-    return FALSE;
-  if (!xdr_u_int (xdrs, &objp->tc_flags))
-    return FALSE;
-  if (!xdr_u_int (xdrs, &objp->tc_rights))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_string (xdrs, &objp->tc_name, 64);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_u_int (xdrs, &objp->tc_flags);
+      if (__builtin_expect (res, TRUE))
+	res = xdr_u_int (xdrs, &objp->tc_rights);
+    }
+  return res;
 }
 
 static bool_t
 xdr_table_obj (XDR *xdrs, table_obj *objp)
 {
-  if (!xdr_string (xdrs, &objp->ta_type, 64))
-    return FALSE;
-  if (!xdr_int (xdrs, &objp->ta_maxcol))
-    return FALSE;
-  if (!xdr_u_char (xdrs, &objp->ta_sep))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->ta_cols.ta_cols_val,
-		  (u_int *) &objp->ta_cols.ta_cols_len, ~0,
-		  sizeof (table_col), (xdrproc_t) xdr_table_col))
-    return FALSE;
-  if (!xdr_string (xdrs, &objp->ta_path, ~0))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_string (xdrs, &objp->ta_type, 64);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_int (xdrs, &objp->ta_maxcol);
+      if (__builtin_expect (res, TRUE))
+	{
+	  res = xdr_u_char (xdrs, &objp->ta_sep);
+	  if (__builtin_expect (res, TRUE))
+	    {
+	      res = xdr_array (xdrs, (char **) &objp->ta_cols.ta_cols_val,
+			       &objp->ta_cols.ta_cols_len, ~0,
+			       sizeof (table_col), (xdrproc_t) xdr_table_col);
+	      if (__builtin_expect (res, TRUE))
+		res = xdr_string (xdrs, &objp->ta_path, ~0);
+	    }
+	}
+    }
+  return res;
 }
 
 static bool_t
 xdr_objdata (XDR *xdrs, objdata *objp)
 {
-  if (!xdr_zotypes (xdrs, &objp->zo_type))
-    return FALSE;
+  bool_t res = xdr_zotypes (xdrs, &objp->zo_type);
+  if (!__builtin_expect (res, TRUE))
+    return res;
   switch (objp->zo_type)
     {
     case NIS_DIRECTORY_OBJ:
-      if (!_xdr_directory_obj (xdrs, &objp->objdata_u.di_data))
-	return FALSE;
-      break;
+      return _xdr_directory_obj (xdrs, &objp->objdata_u.di_data);
     case NIS_GROUP_OBJ:
-      if (!xdr_group_obj (xdrs, &objp->objdata_u.gr_data))
-	return FALSE;
-      break;
+      return xdr_group_obj (xdrs, &objp->objdata_u.gr_data);
     case NIS_TABLE_OBJ:
-      if (!xdr_table_obj (xdrs, &objp->objdata_u.ta_data))
-	return FALSE;
-      break;
+      return xdr_table_obj (xdrs, &objp->objdata_u.ta_data);
     case NIS_ENTRY_OBJ:
-      if (!xdr_entry_obj (xdrs, &objp->objdata_u.en_data))
-	return FALSE;
-      break;
+      return xdr_entry_obj (xdrs, &objp->objdata_u.en_data);
     case NIS_LINK_OBJ:
-      if (!xdr_link_obj (xdrs, &objp->objdata_u.li_data))
-	return FALSE;
-      break;
+      return xdr_link_obj (xdrs, &objp->objdata_u.li_data);
     case NIS_PRIVATE_OBJ:
-      if (!xdr_bytes (xdrs, (char **) &objp->objdata_u.po_data.po_data_val,
-		      (u_int *) & objp->objdata_u.po_data.po_data_len, ~0))
-	return FALSE;
-      break;
+      return xdr_bytes (xdrs, &objp->objdata_u.po_data.po_data_val,
+			&objp->objdata_u.po_data.po_data_len, ~0);
     case NIS_NO_OBJ:
-      break;
     case NIS_BOGUS_OBJ:
-      break;
     default:
-      break;
+      return TRUE;
     }
-  return TRUE;
 }
 
 static bool_t
 xdr_nis_oid (XDR *xdrs, nis_oid *objp)
 {
-  if (!xdr_uint32_t (xdrs, &objp->ctime))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->mtime))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_uint32_t (xdrs, &objp->ctime);
+  if  (__builtin_expect (res, TRUE))
+    res = xdr_uint32_t (xdrs, &objp->mtime);
+  return res;
 }
 
 bool_t
 _xdr_nis_object (XDR *xdrs, nis_object *objp)
 {
-  if (!xdr_nis_oid (xdrs, &objp->zo_oid))
-    return FALSE;
-  if (!_xdr_nis_name (xdrs, &objp->zo_name))
-    return FALSE;
-  if (!_xdr_nis_name (xdrs, &objp->zo_owner))
-    return FALSE;
-  if (!_xdr_nis_name (xdrs, &objp->zo_group))
-    return FALSE;
-  if (!_xdr_nis_name (xdrs, &objp->zo_domain))
-    return FALSE;
-  if (!xdr_u_int (xdrs, &objp->zo_access))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->zo_ttl))
-    return FALSE;
-  if (!xdr_objdata (xdrs, &objp->zo_data))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_nis_oid (xdrs, &objp->zo_oid);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = _xdr_nis_name (xdrs, &objp->zo_name);
+      if (__builtin_expect (res, TRUE))
+	{
+	  res = _xdr_nis_name (xdrs, &objp->zo_owner);
+	  if (__builtin_expect (res, TRUE))
+	    {
+	      res = _xdr_nis_name (xdrs, &objp->zo_group);
+	      if (__builtin_expect (res, TRUE))
+		{
+		  res = _xdr_nis_name (xdrs, &objp->zo_domain);
+		  if (__builtin_expect (res, TRUE))
+		    {
+		      res = xdr_u_int (xdrs, &objp->zo_access);
+		      if (__builtin_expect (res, TRUE))
+			{
+			  res = xdr_uint32_t (xdrs, &objp->zo_ttl);
+			  if (__builtin_expect (res, TRUE))
+			    res = xdr_objdata (xdrs, &objp->zo_data);
+			}
+		    }
+		}
+	    }
+	}
+    }
+  return res;
 }
 
 bool_t
 _xdr_nis_error (XDR *xdrs, nis_error *objp)
 {
-  if (!xdr_enum (xdrs, (enum_t *) objp))
-    return FALSE;
-  return TRUE;
+  return xdr_enum (xdrs, (enum_t *) objp);
 }
 
 bool_t
 _xdr_nis_result (XDR *xdrs, nis_result *objp)
 {
-  if (!_xdr_nis_error (xdrs, &objp->status))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->objects.objects_val,
-		  (u_int *) &objp->objects.objects_len, ~0,
-		  sizeof (nis_object), (xdrproc_t) _xdr_nis_object))
-    return FALSE;
-  if (!xdr_netobj (xdrs, &objp->cookie))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->zticks))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->dticks))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->aticks))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->cticks))
-    return FALSE;
-  return TRUE;
+  bool res = _xdr_nis_error (xdrs, &objp->status);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_array (xdrs, (char **) &objp->objects.objects_val,
+		       &objp->objects.objects_len, ~0,
+		       sizeof (nis_object), (xdrproc_t) _xdr_nis_object);
+      if (__builtin_expect (res, TRUE))
+	{
+	  res = xdr_netobj (xdrs, &objp->cookie);
+	  if (__builtin_expect (res, TRUE))
+	    {
+	      res = xdr_uint32_t (xdrs, &objp->zticks);
+	      if (__builtin_expect (res, TRUE))
+		{
+		  res = xdr_uint32_t (xdrs, &objp->dticks);
+		  if (__builtin_expect (res, TRUE))
+		    {
+		      res = xdr_uint32_t (xdrs, &objp->aticks);
+		      if (__builtin_expect (res, TRUE))
+			res = xdr_uint32_t (xdrs, &objp->cticks);
+		    }
+		}
+	    }
+	}
+    }
+  return res;
 }
 
 bool_t
 _xdr_ns_request (XDR *xdrs, ns_request *objp)
 {
-  if (!_xdr_nis_name (xdrs, &objp->ns_name))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->ns_object.ns_object_val,
-		  (u_int *) &objp->ns_object.ns_object_len, 1,
-		  sizeof (nis_object), (xdrproc_t) _xdr_nis_object))
-    return FALSE;
-  return TRUE;
+  bool_t res = _xdr_nis_name (xdrs, &objp->ns_name);
+  if (__builtin_expect (res, TRUE))
+    res = xdr_array (xdrs, (char **) &objp->ns_object.ns_object_val,
+		     &objp->ns_object.ns_object_len, 1,
+		     sizeof (nis_object), (xdrproc_t) _xdr_nis_object);
+  return res;
 }
 
 bool_t
 _xdr_ib_request (XDR *xdrs, ib_request *objp)
 {
-  if (!_xdr_nis_name (xdrs, &objp->ibr_name))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->ibr_srch.ibr_srch_val,
-		  (u_int *) &objp->ibr_srch.ibr_srch_len, ~0,
-		  sizeof (nis_attr), (xdrproc_t) xdr_nis_attr))
-    return FALSE;
-  if (!xdr_u_int (xdrs, &objp->ibr_flags))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->ibr_obj.ibr_obj_val,
-		  (u_int *) &objp->ibr_obj.ibr_obj_len, 1,
-		  sizeof (nis_object), (xdrproc_t) _xdr_nis_object))
-    return FALSE;
-  if (!xdr_array (xdrs, (char **) &objp->ibr_cbhost.ibr_cbhost_val,
-		  (u_int *) &objp->ibr_cbhost.ibr_cbhost_len, 1,
-		  sizeof (nis_server), (xdrproc_t) _xdr_nis_server))
-    return FALSE;
-  if (!xdr_u_int (xdrs, &objp->ibr_bufsize))
-    return FALSE;
-  if (!xdr_netobj (xdrs, &objp->ibr_cookie))
-    return FALSE;
-  return TRUE;
+  bool_t res = _xdr_nis_name (xdrs, &objp->ibr_name);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_array (xdrs, (char **) &objp->ibr_srch.ibr_srch_val,
+		       &objp->ibr_srch.ibr_srch_len, ~0,
+		       sizeof (nis_attr), (xdrproc_t) xdr_nis_attr);
+      if (__builtin_expect (res, TRUE))
+	{
+	  res = xdr_u_int (xdrs, &objp->ibr_flags);
+	  if (__builtin_expect (res, TRUE))
+	    {
+	      res = xdr_array (xdrs, (char **) &objp->ibr_obj.ibr_obj_val,
+			       &objp->ibr_obj.ibr_obj_len, 1,
+			       sizeof (nis_object),
+			       (xdrproc_t) _xdr_nis_object);
+	      if (__builtin_expect (res, TRUE))
+		{
+		  res = xdr_array (xdrs,
+				   (char **) &objp->ibr_cbhost.ibr_cbhost_val,
+				   &objp->ibr_cbhost.ibr_cbhost_len, 1,
+				   sizeof (nis_server),
+				   (xdrproc_t) _xdr_nis_server);
+		  if (__builtin_expect (res, TRUE))
+		    {
+		      res = xdr_u_int (xdrs, &objp->ibr_bufsize);
+		      if (__builtin_expect (res, TRUE))
+			res =  xdr_netobj (xdrs, &objp->ibr_cookie);
+		    }
+		}
+	    }
+	}
+    }
+  return res;
 }
 
 bool_t
 _xdr_ping_args (XDR *xdrs, ping_args *objp)
 {
-  if (!_xdr_nis_name (xdrs, &objp->dir))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->stamp))
-    return FALSE;
-  return TRUE;
+  bool_t res = _xdr_nis_name (xdrs, &objp->dir);
+  if (__builtin_expect (res, TRUE))
+    res = xdr_uint32_t (xdrs, &objp->stamp);
+  return res;
 }
 
 bool_t
 _xdr_cp_result (XDR *xdrs, cp_result *objp)
 {
-  if (!_xdr_nis_error (xdrs, &objp->cp_status))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->cp_zticks))
-    return FALSE;
-  if (!xdr_uint32_t (xdrs, &objp->cp_dticks))
-    return FALSE;
-  return TRUE;
+  bool_t res = _xdr_nis_error (xdrs, &objp->cp_status);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = xdr_uint32_t (xdrs, &objp->cp_zticks);
+      if (__builtin_expect (res, TRUE))
+	res = xdr_uint32_t (xdrs, &objp->cp_dticks);
+    }
+  return res;
 }
 
 bool_t
 _xdr_nis_tag (XDR *xdrs, nis_tag *objp)
 {
-  if (!xdr_u_int (xdrs, &objp->tag_type))
-    return FALSE;
-  if (!xdr_string (xdrs, &objp->tag_val, ~0))
-    return FALSE;
-  return TRUE;
+  bool_t res = xdr_u_int (xdrs, &objp->tag_type);
+  if (__builtin_expect (res, TRUE))
+    res = xdr_string (xdrs, &objp->tag_val, ~0);
+  return res;
 }
 
 bool_t
 _xdr_nis_taglist (XDR *xdrs, nis_taglist *objp)
 {
-  if (!xdr_array (xdrs, (char **) &objp->tags.tags_val,
-		  (u_int *) &objp->tags.tags_len, ~0, sizeof (nis_tag),
-		  (xdrproc_t) _xdr_nis_tag))
-    return FALSE;
-  return TRUE;
+  return xdr_array (xdrs, (char **) &objp->tags.tags_val,
+		    &objp->tags.tags_len, ~0, sizeof (nis_tag),
+		    (xdrproc_t) _xdr_nis_tag);
 }
 
 bool_t
 _xdr_fd_args (XDR *xdrs, fd_args *objp)
 {
-  if (!_xdr_nis_name (xdrs, &objp->dir_name))
-    return FALSE;
-  if (!_xdr_nis_name (xdrs, &objp->requester))
-    return FALSE;
-  return TRUE;
+  bool_t res = _xdr_nis_name (xdrs, &objp->dir_name);
+  if (__builtin_expect (res, TRUE))
+    res = _xdr_nis_name (xdrs, &objp->requester);
+  return res;
 }
 
 bool_t
 _xdr_fd_result (XDR *xdrs, fd_result *objp)
 {
-  if (!_xdr_nis_error (xdrs, &objp->status))
-    return FALSE;
-  if (!_xdr_nis_name (xdrs, &objp->source))
-    return FALSE;
-  if (!xdr_bytes (xdrs, (char **) &objp->dir_data.dir_data_val,
-		  (u_int *) &objp->dir_data.dir_data_len, ~0))
-    return FALSE;
-  if (!xdr_bytes (xdrs, (char **) &objp->signature.signature_val,
-		  (u_int *) &objp->signature.signature_len, ~0))
-    return FALSE;
-  return TRUE;
+  bool_t res = _xdr_nis_error (xdrs, &objp->status);
+  if (__builtin_expect (res, TRUE))
+    {
+      res = _xdr_nis_name (xdrs, &objp->source);
+      if (__builtin_expect (res, TRUE))
+	{
+	  res = xdr_bytes (xdrs, (char **) &objp->dir_data.dir_data_val,
+			   &objp->dir_data.dir_data_len, ~0);
+	  if (__builtin_expect (res, TRUE))
+	    res = xdr_bytes (xdrs, (char **) &objp->signature.signature_val,
+			     &objp->signature.signature_len, ~0);
+	}
+    }
+  return res;
 }
 
 /* The following functions have prototypes in nis_callback.h.  So
@@ -412,18 +430,14 @@ _xdr_fd_result (XDR *xdrs, fd_result *objp)
 bool_t
 xdr_obj_p (XDR *xdrs, obj_p *objp)
 {
-  if (!xdr_pointer (xdrs, (char **)objp, sizeof (nis_object),
-		    (xdrproc_t)_xdr_nis_object))
-    return FALSE;
-  return TRUE;
+  return xdr_pointer (xdrs, (char **)objp, sizeof (nis_object),
+		      (xdrproc_t)_xdr_nis_object);
 }
 
 bool_t
 xdr_cback_data (XDR *xdrs, cback_data *objp)
 {
-  if (!xdr_array (xdrs, (char **)&objp->entries.entries_val,
-		  (u_int *) &objp->entries.entries_len, ~0,
-		  sizeof (obj_p), (xdrproc_t) xdr_obj_p))
-    return FALSE;
-  return TRUE;
+  return xdr_array (xdrs, (char **)&objp->entries.entries_val,
+		    &objp->entries.entries_len, ~0,
+		    sizeof (obj_p), (xdrproc_t) xdr_obj_p);
 }