usr/src/lib/libnisdb/db_dictxdr.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  *      db_dictxdr.c
  24  *
  25  * Copyright 2015 Gary Mills
  26  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29
  30 #include "db_dictionary_c.h"
  31 #include "db_dictionary.h"
  32 #include "db_vers_c.h"
  33
  34 extern vers db_update_version;
  35
  36 extern void make_zero(vers*);
  37
  38 /* Special xdr_db_dict_desc that understands optional version number at end. */
  39 bool_t
  40 xdr_db_dict_desc(XDR *xdrs, db_dict_desc *objp)
  41 {
  42
  43         if (!xdr_db_dict_version(xdrs, &objp->impl_vers))
  44                 return (FALSE);
  45         if (!xdr_array(xdrs, (char **)&objp->tables.tables_val,
  46                 (uint_t *)&objp->tables.tables_len, ~0,
  47                 sizeof (db_table_desc_p), (xdrproc_t)xdr_db_table_desc_p))
  48                 return (FALSE);
  49         if (!xdr_int(xdrs, &objp->count))
  50                 return (FALSE);
  51
  52         if (xdrs->x_op == XDR_DECODE) {
  53                 /* If no version was found, set version to 0. */
  54                 if (!xdr_vers(xdrs, (void**) &db_update_version))
  55                         make_zero(&db_update_version);
  56                 return (TRUE);
  57         } else if (xdrs->x_op == XDR_ENCODE) {
  58                 /* Always write out version */
  59                 if (!xdr_vers(xdrs, (void**) &db_update_version))
  60                         return (FALSE);
  61         } /* else XDR_FREE: do nothing */
  62
  63         return (TRUE);
  64 }