1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*
* xdr_sizeof.c
*
* Copyright 1990 Sun Microsystems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* General purpose routine to see how much space something will use
* when serialized using XDR.
*/
#include <rpc/types.h>
#include <rpc/xdr.h>
#include <sys/types.h>
#include <stdlib.h>
/* ARGSUSED */
static bool_t
x_putlong (XDR *xdrs, const long *longp)
{
xdrs->x_handy += BYTES_PER_XDR_UNIT;
return TRUE;
}
/* ARGSUSED */
static bool_t
x_putbytes (XDR *xdrs, const char *bp, u_int len)
{
xdrs->x_handy += len;
return TRUE;
}
static u_int
x_getpostn (const XDR *xdrs)
{
return xdrs->x_handy;
}
/* ARGSUSED */
static bool_t
x_setpostn (XDR *xdrs, u_int len)
{
/* This is not allowed */
return FALSE;
}
static int32_t *
x_inline (XDR *xdrs, u_int len)
{
if (len == 0)
return NULL;
if (xdrs->x_op != XDR_ENCODE)
return NULL;
if (len < (u_int) (long int) xdrs->x_base)
{
/* x_private was already allocated */
xdrs->x_handy += len;
return (int32_t *) xdrs->x_private;
}
else
{
/* Free the earlier space and allocate new area */
free (xdrs->x_private);
if ((xdrs->x_private = (caddr_t) malloc (len)) == NULL)
{
xdrs->x_base = 0;
return NULL;
}
xdrs->x_base = (void *) (long) len;
xdrs->x_handy += len;
return (int32_t *) xdrs->x_private;
}
}
static int
harmless (void)
{
/* Always return FALSE/NULL, as the case may be */
return 0;
}
static void
x_destroy (XDR *xdrs)
{
xdrs->x_handy = 0;
xdrs->x_base = 0;
if (xdrs->x_private)
{
free (xdrs->x_private);
xdrs->x_private = NULL;
}
return;
}
static bool_t
x_putint32 (XDR *xdrs, const int32_t *int32p)
{
xdrs->x_handy += BYTES_PER_XDR_UNIT;
return TRUE;
}
unsigned long
xdr_sizeof (xdrproc_t func, void *data)
{
XDR x;
struct xdr_ops ops;
bool_t stat;
/* to stop ANSI-C compiler from complaining */
typedef bool_t (*dummyfunc1) (XDR *, long *);
typedef bool_t (*dummyfunc2) (XDR *, caddr_t, u_int);
typedef bool_t (*dummyfunc3) (XDR *, int32_t *);
ops.x_putlong = x_putlong;
ops.x_putbytes = x_putbytes;
ops.x_inline = x_inline;
ops.x_getpostn = x_getpostn;
ops.x_setpostn = x_setpostn;
ops.x_destroy = x_destroy;
ops.x_putint32 = x_putint32;
/* the other harmless ones */
ops.x_getlong = (dummyfunc1) harmless;
ops.x_getbytes = (dummyfunc2) harmless;
ops.x_getint32 = (dummyfunc3) harmless;
x.x_op = XDR_ENCODE;
x.x_ops = &ops;
x.x_handy = 0;
x.x_private = (caddr_t) NULL;
x.x_base = (caddr_t) 0;
stat = func (&x, data);
free (x.x_private);
return stat == TRUE ? x.x_handy : 0;
}
|
