usr/src/lib/libnisdb/xdr_nullptr.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  *      xdr_nullptr.c
  24  *
  25  *      Copyright (c) 1988-1992 Sun Microsystems Inc
  26  *      All Rights Reserved.
  27  */
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"
  30
  31 /*
  32  * xdr_nullptr.c
  33  *
  34  * This function is used to control serializing and de-serializing of the
  35  * database objects. Basically there are some pointers in the structure
  36  * that we don't bother to serialize because they are always NULL when we
  37  * deserialize them. This function then simply returns on encode operations
  38  * and stuffs NULL into the pointer passed when decoding.
  39  */
  40 #include <rpc/rpc.h>
  41
  42 bool_t
  43 xdr_nullptr(xdrs, objp)
  44         XDR     *xdrs;
  45         void    **objp;
  46 {
  47         if (xdrs->x_op == XDR_DECODE) {
  48                 *objp = NULL;
  49         }
  50         return (TRUE);
  51 }