1
2 /*
3 * Copyright (c) 2009, Sun Microsystems, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 * - Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * - Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * - Neither the name of Sun Microsystems, Inc. nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 /*
31 * xdr_float.c, Generic XDR routines implementation.
32 *
33 * Copyright (C) 1984, Sun Microsystems, Inc.
34 *
35 * These are the "floating point" xdr routines used to (de)serialize
36 * most common data items. See xdr.h for more info on the interface to
37 * xdr.
38 */
39
40 #define _DEFAULT_SOURCE
41 #include <sys/types.h>
42 #include <rpc/types.h>
43 #include <rpc/xdr.h>
44
45 #include "xdr_private.h"
46
47 /*
48 * NB: Not portable.
49 * This routine works on machines with IEEE754 FP and Vaxen.
50 * Assume that xdr_private.h arranges things so that one of
51 * 1) __IEEE_LITTLE_ENDIAN
52 * 2) __IEEE_BIG_ENDIAN
53 * 3) __vax__
54 * is #defined. Otherwise, expect errors.
55 */
56 #ifndef XDR_FLOAT_C
57 #define XDR_FLOAT_C
58 #endif
59
60 #if defined(__IEEE_LITTLE_ENDIAN) || defined(__IEEE_BIG_ENDIAN)
61
62 bool_t
xdr_float(XDR * xdrs,float * fp)63 xdr_float (XDR * xdrs,
64 float *fp)
65 {
66 switch (xdrs->x_op)
67 {
68
69 case XDR_ENCODE:
70 return (XDR_PUTINT32 (xdrs, (int32_t *) fp));
71
72 case XDR_DECODE:
73 return (XDR_GETINT32 (xdrs, (int32_t *) fp));
74
75 case XDR_FREE:
76 return TRUE;
77 }
78 return FALSE;
79 }
80
81 #if !defined(_DOUBLE_IS_32BITS)
82 bool_t
xdr_double(XDR * xdrs,double * dp)83 xdr_double (XDR * xdrs,
84 double *dp)
85 {
86 int32_t *i32p;
87 bool_t rv;
88
89 switch (xdrs->x_op)
90 {
91
92 case XDR_ENCODE:
93 i32p = (int32_t *) (void *) dp;
94 #if defined(__IEEE_BIG_ENDIAN)
95 rv = XDR_PUTINT32 (xdrs, i32p);
96 if (!rv)
97 return (rv);
98 rv = XDR_PUTINT32 (xdrs, i32p + 1);
99 #else /* must be __IEEE_LITTLE_ENDIAN */
100 rv = XDR_PUTINT32 (xdrs, i32p + 1);
101 if (!rv)
102 return (rv);
103 rv = XDR_PUTINT32 (xdrs, i32p);
104 #endif /* __IEEE_LITTLE_ENDIAN */
105 return (rv);
106
107 case XDR_DECODE:
108 i32p = (int32_t *) (void *) dp;
109 #if defined(__IEEE_BIG_ENDIAN)
110 rv = XDR_GETINT32 (xdrs, i32p);
111 if (!rv)
112 return (rv);
113 rv = XDR_GETINT32 (xdrs, i32p + 1);
114 #else /* must be __IEEE_LITTLE_ENDIAN */
115 rv = XDR_GETINT32 (xdrs, i32p + 1);
116 if (!rv)
117 return (rv);
118 rv = XDR_GETINT32 (xdrs, i32p);
119 #endif /* __IEEE_LITTLE_ENDIAN */
120 return (rv);
121
122 case XDR_FREE:
123 return TRUE;
124 }
125 return FALSE;
126 }
127 #endif /* !_DOUBLE_IS_32BITS */
128
129 #elif defined(__vax__)
130 #include "xdr_float_vax.c"
131 #endif
132
133
