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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* @(#)xdr_mem.c 2.1 88/07/29 4.0 RPCSRC */
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#if !defined(lint) && defined(SCCSIDS)
static char sccsid[] = "@(#)xdr_mem.c 1.19 87/08/11 Copyr 1984 Sun Micro";
#endif
/*
* xdr_mem.h, XDR implementation using memory buffers.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
* If you have some data to be interpreted as external data representation
* or to be converted to external data representation in a memory buffer,
* then this is the package for you.
*
*/
#include <gssrpc/types.h>
#include <gssrpc/xdr.h>
#include <netinet/in.h>
#include <stdio.h>
#include <string.h>
static bool_t xdrmem_getlong(XDR *, long *);
static bool_t xdrmem_putlong(XDR *, long *);
static bool_t xdrmem_getbytes(XDR *, caddr_t, unsigned int);
static bool_t xdrmem_putbytes(XDR *, caddr_t, unsigned int);
static unsigned int xdrmem_getpos(XDR *);
static bool_t xdrmem_setpos(XDR *, unsigned int);
static rpc_int32 * xdrmem_inline(XDR *, int);
static void xdrmem_destroy(XDR *);
static struct xdr_ops xdrmem_ops = {
xdrmem_getlong,
xdrmem_putlong,
xdrmem_getbytes,
xdrmem_putbytes,
xdrmem_getpos,
xdrmem_setpos,
xdrmem_inline,
xdrmem_destroy
};
/*
* The procedure xdrmem_create initializes a stream descriptor for a
* memory buffer.
*/
void
xdrmem_create(xdrs, addr, size, op)
register XDR *xdrs;
caddr_t addr;
unsigned int size;
enum xdr_op op;
{
xdrs->x_op = op;
xdrs->x_ops = &xdrmem_ops;
xdrs->x_private = xdrs->x_base = addr;
xdrs->x_handy = size;
}
static void
xdrmem_destroy(xdrs)
XDR *xdrs;
{
}
static bool_t
xdrmem_getlong(xdrs, lp)
register XDR *xdrs;
long *lp;
{
if ((xdrs->x_handy -= sizeof(rpc_int32)) < 0)
return (FALSE);
*lp = (long)ntohl(*((rpc_u_int32 *)(xdrs->x_private)));
xdrs->x_private = (char *)xdrs->x_private + sizeof(rpc_int32);
return (TRUE);
}
static bool_t
xdrmem_putlong(xdrs, lp)
register XDR *xdrs;
long *lp;
{
if ((xdrs->x_handy -= sizeof(rpc_int32)) < 0)
return (FALSE);
*(rpc_int32 *)xdrs->x_private = (rpc_int32)htonl((rpc_u_int32)(*lp));
xdrs->x_private = (char *)xdrs->x_private + sizeof(rpc_int32);
return (TRUE);
}
static bool_t
xdrmem_getbytes(xdrs, addr, len)
register XDR *xdrs;
caddr_t addr;
register unsigned int len;
{
if ((xdrs->x_handy -= len) < 0)
return (FALSE);
memmove(addr, xdrs->x_private, len);
xdrs->x_private = (char *)xdrs->x_private + len;
return (TRUE);
}
static bool_t
xdrmem_putbytes(xdrs, addr, len)
register XDR *xdrs;
caddr_t addr;
register unsigned int len;
{
if ((xdrs->x_handy -= len) < 0)
return (FALSE);
memmove(xdrs->x_private, addr, len);
xdrs->x_private = (char *)xdrs->x_private + len;
return (TRUE);
}
static unsigned int
xdrmem_getpos(xdrs)
register XDR *xdrs;
{
/*
* 11/3/95 - JRG - Rather than recast everything for 64 bit, just convert
* pointers to longs, then cast to int.
*/
return (unsigned int)((unsigned long)xdrs->x_private - (unsigned long)xdrs->x_base);
}
static bool_t
xdrmem_setpos(xdrs, pos)
register XDR *xdrs;
unsigned int pos;
{
register caddr_t newaddr = xdrs->x_base + pos;
register caddr_t lastaddr = (char *) xdrs->x_private + xdrs->x_handy;
if ((long)newaddr > (long)lastaddr)
return (FALSE);
xdrs->x_private = newaddr;
xdrs->x_handy = (int)((long)lastaddr - (long)newaddr);
return (TRUE);
}
static rpc_int32 *
xdrmem_inline(xdrs, len)
register XDR *xdrs;
int len;
{
rpc_int32 *buf = 0;
if (xdrs->x_handy >= len) {
xdrs->x_handy -= len;
buf = (rpc_int32 *) xdrs->x_private;
xdrs->x_private = (char *)xdrs->x_private + len;
}
return (buf);
}
|
