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/* $OpenBSD: xdr_float.c,v 1.23 2016/03/09 16:28:47 deraadt Exp $ */
/*
* Copyright (c) 2010, Oracle America, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of the "Oracle America, Inc." nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* xdr_float.c, Generic XDR routines implementation.
*
* These are the "floating point" xdr routines used to (de)serialize
* most common data items. See xdr.h for more info on the interface to
* xdr.
*/
#include <stdio.h>
#include <sys/types.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
/*
* NB: Not portable.
* This routine works on machines with IEEE754 FP.
*/
#include <endian.h>
bool_t
xdr_float(XDR *xdrs, float *fp)
{
bool_t rv;
long tmpl;
switch (xdrs->x_op) {
case XDR_ENCODE:
tmpl = *(int32_t *)fp;
return (XDR_PUTLONG(xdrs, &tmpl));
case XDR_DECODE:
rv = XDR_GETLONG(xdrs, &tmpl);
*(int32_t *)fp = tmpl;
return (rv);
case XDR_FREE:
return (TRUE);
}
return (FALSE);
}
bool_t
xdr_double(XDR *xdrs, double *dp)
{
int32_t *i32p;
bool_t rv;
long tmpl;
switch (xdrs->x_op) {
case XDR_ENCODE:
i32p = (int32_t *)dp;
#if (BYTE_ORDER == BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__))
tmpl = *i32p++;
rv = XDR_PUTLONG(xdrs, &tmpl);
if (!rv)
return (rv);
tmpl = *i32p;
rv = XDR_PUTLONG(xdrs, &tmpl);
#else
tmpl = *(i32p+1);
rv = XDR_PUTLONG(xdrs, &tmpl);
if (!rv)
return (rv);
tmpl = *i32p;
rv = XDR_PUTLONG(xdrs, &tmpl);
#endif
return (rv);
case XDR_DECODE:
i32p = (int32_t *)dp;
#if (BYTE_ORDER == BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__))
rv = XDR_GETLONG(xdrs, &tmpl);
*i32p++ = tmpl;
if (!rv)
return (rv);
rv = XDR_GETLONG(xdrs, &tmpl);
*i32p = tmpl;
#else
rv = XDR_GETLONG(xdrs, &tmpl);
*(i32p+1) = tmpl;
if (!rv)
return (rv);
rv = XDR_GETLONG(xdrs, &tmpl);
*i32p = tmpl;
#endif
return (rv);
case XDR_FREE:
return (TRUE);
}
return (FALSE);
}
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