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021db4be6f
New configure option --enable-obsolete-rpc makes the deprecated RPC headers and functions available at compile time as they were before version 2.14. This option will be removed at some time in the future after the TI-RPC library becomes fully sufficient for the needs of existing applications.
166 lines
4.2 KiB
C
166 lines
4.2 KiB
C
/*
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* xdr_sizeof.c
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*
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* Copyright (c) 2010, Oracle America, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the "Oracle America, Inc." nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* General purpose routine to see how much space something will use
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* when serialized using XDR.
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*/
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include <sys/types.h>
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#include <stdlib.h>
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/* ARGSUSED */
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static bool_t
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x_putlong (XDR *xdrs, const long *longp)
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{
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xdrs->x_handy += BYTES_PER_XDR_UNIT;
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return TRUE;
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}
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/* ARGSUSED */
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static bool_t
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x_putbytes (XDR *xdrs, const char *bp, u_int len)
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{
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xdrs->x_handy += len;
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return TRUE;
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}
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static u_int
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x_getpostn (const XDR *xdrs)
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{
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return xdrs->x_handy;
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}
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/* ARGSUSED */
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static bool_t
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x_setpostn (XDR *xdrs, u_int len)
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{
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/* This is not allowed */
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return FALSE;
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}
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static int32_t *
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x_inline (XDR *xdrs, u_int len)
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{
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if (len == 0)
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return NULL;
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if (xdrs->x_op != XDR_ENCODE)
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return NULL;
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if (len < (u_int) (long int) xdrs->x_base)
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{
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/* x_private was already allocated */
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xdrs->x_handy += len;
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return (int32_t *) xdrs->x_private;
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}
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else
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{
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/* Free the earlier space and allocate new area */
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free (xdrs->x_private);
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if ((xdrs->x_private = (caddr_t) malloc (len)) == NULL)
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{
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xdrs->x_base = 0;
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return NULL;
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}
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xdrs->x_base = (void *) (long) len;
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xdrs->x_handy += len;
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return (int32_t *) xdrs->x_private;
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}
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}
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static int
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harmless (void)
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{
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/* Always return FALSE/NULL, as the case may be */
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return 0;
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}
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static void
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x_destroy (XDR *xdrs)
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{
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xdrs->x_handy = 0;
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xdrs->x_base = 0;
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if (xdrs->x_private)
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{
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free (xdrs->x_private);
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xdrs->x_private = NULL;
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}
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return;
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}
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static bool_t
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x_putint32 (XDR *xdrs, const int32_t *int32p)
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{
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xdrs->x_handy += BYTES_PER_XDR_UNIT;
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return TRUE;
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}
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unsigned long
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xdr_sizeof (xdrproc_t func, void *data)
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{
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XDR x;
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struct xdr_ops ops;
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bool_t stat;
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/* to stop ANSI-C compiler from complaining */
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typedef bool_t (*dummyfunc1) (XDR *, long *);
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typedef bool_t (*dummyfunc2) (XDR *, caddr_t, u_int);
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typedef bool_t (*dummyfunc3) (XDR *, int32_t *);
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ops.x_putlong = x_putlong;
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ops.x_putbytes = x_putbytes;
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ops.x_inline = x_inline;
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ops.x_getpostn = x_getpostn;
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ops.x_setpostn = x_setpostn;
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ops.x_destroy = x_destroy;
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ops.x_putint32 = x_putint32;
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/* the other harmless ones */
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ops.x_getlong = (dummyfunc1) harmless;
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ops.x_getbytes = (dummyfunc2) harmless;
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ops.x_getint32 = (dummyfunc3) harmless;
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x.x_op = XDR_ENCODE;
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x.x_ops = &ops;
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x.x_handy = 0;
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x.x_private = (caddr_t) NULL;
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x.x_base = (caddr_t) 0;
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stat = func (&x, data);
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free (x.x_private);
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return stat == TRUE ? x.x_handy : 0;
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}
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#ifdef EXPORT_RPC_SYMBOLS
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libc_hidden_def (xdr_sizeof)
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#else
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libc_hidden_nolink_sunrpc (xdr_sizeof, GLIBC_2_1)
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#endif
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