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/* $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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} |