lib/libc/xdr/xdr_float.c

   1 /*
   2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   3  * unrestricted use provided that this legend is included on all tape
   4  * media and as a part of the software program in whole or part.  Users
   5  * may copy or modify Sun RPC without charge, but are not authorized
   6  * to license or distribute it to anyone else except as part of a product or
   7  * program developed by the user.
   8  *
   9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  10  * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  12  *
  13  * Sun RPC is provided with no support and without any obligation on the
  14  * part of Sun Microsystems, Inc. to assist in its use, correction,
  15  * modification or enhancement.
  16  *
  17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  19  * OR ANY PART THEREOF.
  20  *
  21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  22  * or profits or other special, indirect and consequential damages, even if
  23  * Sun has been advised of the possibility of such damages.
  24  *
  25  * Sun Microsystems, Inc.
  26  * 2550 Garcia Avenue
  27  * Mountain View, California  94043
  28  *
  29  * @(#)xdr_float.c 1.12 87/08/11 Copyr 1984 Sun Micro
  30  * @(#)xdr_float.c      2.1 88/07/29 4.0 RPCSRC
  31  * $NetBSD: xdr_float.c,v 1.23 2000/07/17 04:59:51 matt Exp $
  32  * $FreeBSD: src/lib/libc/xdr/xdr_float.c,v 1.14 2004/10/16 06:32:43 obrien Exp $
  33  */
  34
  35 /*
  36  * xdr_float.c, Generic XDR routines implementation.
  37  *
  38  * Copyright (C) 1984, Sun Microsystems, Inc.
  39  *
  40  * These are the "floating point" xdr routines used to (de)serialize
  41  * most common data items.  See xdr.h for more info on the interface to
  42  * xdr.
  43  */
  44
  45 #include "namespace.h"
  46 #include <sys/types.h>
  47 #include <sys/param.h>
  48
  49 #include <machine/endian.h>
  50
  51 #include <stdio.h>
  52
  53 #include <rpc/types.h>
  54 #include <rpc/xdr.h>
  55 #include "un-namespace.h"
  56
  57 /*
  58  * This routine works on machines with IEEE754 FP.
  59  */
  60
  61 bool_t
  62 xdr_float(XDR *xdrs, float *fp)
  63 {
  64         switch (xdrs->x_op) {
  65
  66         case XDR_ENCODE:
  67                 return (XDR_PUTINT32(xdrs, (int32_t *)fp));
  68
  69         case XDR_DECODE:
  70                 return (XDR_GETINT32(xdrs, (int32_t *)fp));
  71
  72         case XDR_FREE:
  73                 return (TRUE);
  74         }
  75         /* NOTREACHED */
  76         return (FALSE);
  77 }
  78
  79 bool_t
  80 xdr_double(XDR *xdrs, double *dp)
  81 {
  82         int32_t *i32p;
  83         bool_t rv;
  84
  85         switch (xdrs->x_op) {
  86
  87         case XDR_ENCODE:
  88                 i32p = (int32_t *)(void *)dp;
  89 #if BYTE_ORDER == BIG_ENDIAN
  90                 rv = XDR_PUTINT32(xdrs, i32p);
  91                 if (!rv)
  92                         return (rv);
  93                 rv = XDR_PUTINT32(xdrs, i32p+1);
  94 #else
  95                 rv = XDR_PUTINT32(xdrs, i32p+1);
  96                 if (!rv)
  97                         return (rv);
  98                 rv = XDR_PUTINT32(xdrs, i32p);
  99 #endif
 100                 return (rv);
 101
 102         case XDR_DECODE:
 103                 i32p = (int32_t *)(void *)dp;
 104 #if BYTE_ORDER == BIG_ENDIAN
 105                 rv = XDR_GETINT32(xdrs, i32p);
 106                 if (!rv)
 107                         return (rv);
 108                 rv = XDR_GETINT32(xdrs, i32p+1);
 109 #else
 110                 rv = XDR_GETINT32(xdrs, i32p+1);
 111                 if (!rv)
 112                         return (rv);
 113                 rv = XDR_GETINT32(xdrs, i32p);
 114 #endif
 115                 return (rv);
 116
 117         case XDR_FREE:
 118                 return (TRUE);
 119         }
 120         /* NOTREACHED */
 121         return (FALSE);
 122 }