128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
/* $OpenBSD: xdr_float.c,v 1.23 2016/03/09 16:28:47 deraadt Exp $ */
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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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/*
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* xdr_float.c, Generic XDR routines implementation.
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*
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* These are the "floating point" xdr routines used to (de)serialize
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* most common data items. See xdr.h for more info on the interface to
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* xdr.
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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/*
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* NB: Not portable.
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* This routine works on machines with IEEE754 FP.
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*/
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#include <endian.h>
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bool_t
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xdr_float(XDR *xdrs, float *fp)
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{
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bool_t rv;
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long tmpl;
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switch (xdrs->x_op) {
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case XDR_ENCODE:
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tmpl = *(int32_t *)fp;
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return (XDR_PUTLONG(xdrs, &tmpl));
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case XDR_DECODE:
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rv = XDR_GETLONG(xdrs, &tmpl);
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*(int32_t *)fp = tmpl;
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return (rv);
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case XDR_FREE:
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return (TRUE);
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}
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return (FALSE);
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}
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bool_t
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xdr_double(XDR *xdrs, double *dp)
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{
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int32_t *i32p;
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bool_t rv;
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long tmpl;
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switch (xdrs->x_op) {
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case XDR_ENCODE:
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i32p = (int32_t *)dp;
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#if (BYTE_ORDER == BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__))
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tmpl = *i32p++;
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rv = XDR_PUTLONG(xdrs, &tmpl);
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if (!rv)
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return (rv);
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tmpl = *i32p;
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rv = XDR_PUTLONG(xdrs, &tmpl);
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#else
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tmpl = *(i32p+1);
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rv = XDR_PUTLONG(xdrs, &tmpl);
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if (!rv)
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return (rv);
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tmpl = *i32p;
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rv = XDR_PUTLONG(xdrs, &tmpl);
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#endif
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return (rv);
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case XDR_DECODE:
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i32p = (int32_t *)dp;
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#if (BYTE_ORDER == BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__))
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rv = XDR_GETLONG(xdrs, &tmpl);
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*i32p++ = tmpl;
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if (!rv)
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return (rv);
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rv = XDR_GETLONG(xdrs, &tmpl);
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*i32p = tmpl;
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#else
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rv = XDR_GETLONG(xdrs, &tmpl);
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*(i32p+1) = tmpl;
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if (!rv)
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return (rv);
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rv = XDR_GETLONG(xdrs, &tmpl);
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*i32p = tmpl;
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#endif
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return (rv);
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case XDR_FREE:
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return (TRUE);
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}
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return (FALSE);
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}
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