lib/libspl/include/rpc/xdr.h

   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  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  *
  25  *      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T
  26  *        All Rights Reserved
  27  *
  28  * Portions of this source code were derived from Berkeley 4.3 BSD
  29  * under license from the Regents of the University of California.
  30  */
  31
  32 #ifndef LIBSPL_RPC_XDR_H
  33 #define LIBSPL_RPC_XDR_H
  34
  35 #include_next <rpc/xdr.h>
  36
  37 #ifdef xdr_control /* if e.g. using tirpc */
  38 #undef xdr_control
  39 #endif
  40
  41 #define XDR_GET_BYTES_AVAIL 1
  42
  43 typedef struct xdr_bytesrec {
  44         bool_t xc_is_last_record;
  45         size_t xc_num_avail;
  46 } xdr_bytesrec_t;
  47
  48 /*
  49  * This functionality is not required and is disabled in user space.
  50  */
  51 static inline bool_t
  52 xdr_control(XDR *xdrs, int request, void *info)
  53 {
  54         xdr_bytesrec_t *xptr;
  55
  56         ASSERT3U(request, ==, XDR_GET_BYTES_AVAIL);
  57
  58         xptr = (xdr_bytesrec_t *)info;
  59         xptr->xc_is_last_record = TRUE;
  60         xptr->xc_num_avail = xdrs->x_handy;
  61
  62         return (TRUE);
  63 }
  64
  65 #endif /* LIBSPL_RPC_XDR_H */