fresh git tree for public release
we regretfully had to remove our git history for licensing reasons Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
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Casey Bodley
commit
0ad4db4fad
271 changed files with 71255 additions and 0 deletions
300
libtirpc/src/xdr_float.c
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300
libtirpc/src/xdr_float.c
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/*
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* Copyright (c) 2009, Sun Microsystems, Inc.
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* All rights reserved.
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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 met:
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of Sun Microsystems, 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 "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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//#include <sys/cdefs.h>
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/*
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* xdr_float.c, Generic XDR routines implementation.
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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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 <wintirpc.h>
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#include "namespace.h"
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#include <sys/types.h>
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//#include <sys/param.h>
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#include <stdio.h>
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include "un-namespace.h"
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/*
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* NB: Not portable.
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* This routine works on machines with IEEE754 FP and Vaxen.
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*/
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#if defined(__vax__)
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/* What IEEE single precision floating point looks like on a Vax */
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struct ieee_single {
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unsigned int mantissa: 23;
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unsigned int exp : 8;
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unsigned int sign : 1;
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};
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/* Vax single precision floating point */
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struct vax_single {
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unsigned int mantissa1 : 7;
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unsigned int exp : 8;
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unsigned int sign : 1;
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unsigned int mantissa2 : 16;
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};
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#define VAX_SNG_BIAS 0x81
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#define IEEE_SNG_BIAS 0x7f
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static struct sgl_limits {
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struct vax_single s;
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struct ieee_single ieee;
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} sgl_limits[2] = {
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{{ 0x7f, 0xff, 0x0, 0xffff }, /* Max Vax */
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{ 0x0, 0xff, 0x0 }}, /* Max IEEE */
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{{ 0x0, 0x0, 0x0, 0x0 }, /* Min Vax */
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{ 0x0, 0x0, 0x0 }} /* Min IEEE */
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};
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#else
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//#include <bits/endian.h>
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#define IEEEFP
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#endif /* vax */
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bool_t
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xdr_float(xdrs, fp)
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XDR *xdrs;
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float *fp;
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{
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#ifndef IEEEFP
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struct ieee_single is;
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struct vax_single vs, *vsp;
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struct sgl_limits *lim;
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int i;
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#endif
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switch (xdrs->x_op) {
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case XDR_ENCODE:
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#ifdef IEEEFP
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return (XDR_PUTINT32(xdrs, (int32_t *)fp));
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#else
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vs = *((struct vax_single *)fp);
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for (i = 0, lim = sgl_limits;
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i < sizeof(sgl_limits)/sizeof(struct sgl_limits);
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i++, lim++) {
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if ((vs.mantissa2 == lim->s.mantissa2) &&
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(vs.exp == lim->s.exp) &&
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(vs.mantissa1 == lim->s.mantissa1)) {
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is = lim->ieee;
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goto shipit;
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}
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}
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is.exp = vs.exp - VAX_SNG_BIAS + IEEE_SNG_BIAS;
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is.mantissa = (vs.mantissa1 << 16) | vs.mantissa2;
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shipit:
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is.sign = vs.sign;
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return (XDR_PUTINT32(xdrs, (int32_t *)&is));
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#endif
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case XDR_DECODE:
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#ifdef IEEEFP
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return (XDR_GETINT32(xdrs, (int32_t *)fp));
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#else
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vsp = (struct vax_single *)fp;
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if (!XDR_GETINT32(xdrs, (int32_t *)&is))
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return (FALSE);
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for (i = 0, lim = sgl_limits;
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i < sizeof(sgl_limits)/sizeof(struct sgl_limits);
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i++, lim++) {
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if ((is.exp == lim->ieee.exp) &&
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(is.mantissa == lim->ieee.mantissa)) {
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*vsp = lim->s;
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goto doneit;
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}
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}
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vsp->exp = is.exp - IEEE_SNG_BIAS + VAX_SNG_BIAS;
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vsp->mantissa2 = is.mantissa;
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vsp->mantissa1 = (is.mantissa >> 16);
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doneit:
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vsp->sign = is.sign;
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return (TRUE);
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#endif
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case XDR_FREE:
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return (TRUE);
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}
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/* NOTREACHED */
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return (FALSE);
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}
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#if defined(__vax__)
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/* What IEEE double precision floating point looks like on a Vax */
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struct ieee_double {
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unsigned int mantissa1 : 20;
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unsigned int exp : 11;
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unsigned int sign : 1;
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unsigned int mantissa2 : 32;
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};
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/* Vax double precision floating point */
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struct vax_double {
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unsigned int mantissa1 : 7;
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unsigned int exp : 8;
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unsigned int sign : 1;
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unsigned int mantissa2 : 16;
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unsigned int mantissa3 : 16;
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unsigned int mantissa4 : 16;
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};
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#define VAX_DBL_BIAS 0x81
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#define IEEE_DBL_BIAS 0x3ff
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#define MASK(nbits) ((1 << nbits) - 1)
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static struct dbl_limits {
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struct vax_double d;
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struct ieee_double ieee;
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} dbl_limits[2] = {
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{{ 0x7f, 0xff, 0x0, 0xffff, 0xffff, 0xffff }, /* Max Vax */
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{ 0x0, 0x7ff, 0x0, 0x0 }}, /* Max IEEE */
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{{ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, /* Min Vax */
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{ 0x0, 0x0, 0x0, 0x0 }} /* Min IEEE */
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};
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#endif /* vax */
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bool_t
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xdr_double(xdrs, dp)
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XDR *xdrs;
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double *dp;
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{
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#ifdef IEEEFP
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int32_t *i32p;
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bool_t rv;
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#else
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int32_t *lp;
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struct ieee_double id;
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struct vax_double vd;
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struct dbl_limits *lim;
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int i;
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#endif
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switch (xdrs->x_op) {
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case XDR_ENCODE:
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#ifdef IEEEFP
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i32p = (int32_t *)(void *)dp;
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#if BYTE_ORDER == BIG_ENDIAN
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rv = XDR_PUTINT32(xdrs, i32p);
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if (!rv)
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return (rv);
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rv = XDR_PUTINT32(xdrs, i32p+1);
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#else
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rv = XDR_PUTINT32(xdrs, i32p+1);
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if (!rv)
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return (rv);
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rv = XDR_PUTINT32(xdrs, i32p);
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#endif
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return (rv);
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#else
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vd = *((struct vax_double *)dp);
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for (i = 0, lim = dbl_limits;
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i < sizeof(dbl_limits)/sizeof(struct dbl_limits);
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i++, lim++) {
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if ((vd.mantissa4 == lim->d.mantissa4) &&
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(vd.mantissa3 == lim->d.mantissa3) &&
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(vd.mantissa2 == lim->d.mantissa2) &&
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(vd.mantissa1 == lim->d.mantissa1) &&
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(vd.exp == lim->d.exp)) {
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id = lim->ieee;
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goto shipit;
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}
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}
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id.exp = vd.exp - VAX_DBL_BIAS + IEEE_DBL_BIAS;
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id.mantissa1 = (vd.mantissa1 << 13) | (vd.mantissa2 >> 3);
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id.mantissa2 = ((vd.mantissa2 & MASK(3)) << 29) |
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(vd.mantissa3 << 13) |
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((vd.mantissa4 >> 3) & MASK(13));
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shipit:
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id.sign = vd.sign;
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lp = (int32_t *)&id;
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return (XDR_PUTINT32(xdrs, lp++) && XDR_PUTINT32(xdrs, lp));
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#endif
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case XDR_DECODE:
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#ifdef IEEEFP
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i32p = (int32_t *)(void *)dp;
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#if BYTE_ORDER == BIG_ENDIAN
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rv = XDR_GETINT32(xdrs, i32p);
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if (!rv)
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return (rv);
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rv = XDR_GETINT32(xdrs, i32p+1);
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#else
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rv = XDR_GETINT32(xdrs, i32p+1);
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if (!rv)
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return (rv);
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rv = XDR_GETINT32(xdrs, i32p);
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#endif
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return (rv);
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#else
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lp = (int32_t *)&id;
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if (!XDR_GETINT32(xdrs, lp++) || !XDR_GETINT32(xdrs, lp))
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return (FALSE);
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for (i = 0, lim = dbl_limits;
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i < sizeof(dbl_limits)/sizeof(struct dbl_limits);
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i++, lim++) {
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if ((id.mantissa2 == lim->ieee.mantissa2) &&
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(id.mantissa1 == lim->ieee.mantissa1) &&
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(id.exp == lim->ieee.exp)) {
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vd = lim->d;
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goto doneit;
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}
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}
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vd.exp = id.exp - IEEE_DBL_BIAS + VAX_DBL_BIAS;
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vd.mantissa1 = (id.mantissa1 >> 13);
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vd.mantissa2 = ((id.mantissa1 & MASK(13)) << 3) |
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(id.mantissa2 >> 29);
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vd.mantissa3 = (id.mantissa2 >> 13);
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vd.mantissa4 = (id.mantissa2 << 3);
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doneit:
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vd.sign = id.sign;
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*dp = *((double *)&vd);
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return (TRUE);
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#endif
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case XDR_FREE:
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return (TRUE);
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}
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/* NOTREACHED */
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return (FALSE);
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}
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