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
|
/* @(#)xdr_stdio.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_stdio.c 1.16 87/08/11 Copyr 1984 Sun Micro";
#endif
/*
* xdr_stdio.c, XDR implementation on standard i/o file.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
* This set of routines implements a XDR on a stdio stream.
* XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes
* from the stream.
*/
#include <rpc/types.h>
#include <stdio.h>
#include <rpc/xdr.h>
#ifdef USE_IN_LIBIO
# include <libio/iolibio.h>
# define fflush(s) _IO_fflush (s)
# define fread(p, m, n, s) _IO_fread (p, m, n, s)
# define ftell(s) _IO_ftell (s)
# define fwrite(p, m, n, s) _IO_fwrite (p, m, n, s)
#endif
static bool_t xdrstdio_getlong (XDR *, long *);
static bool_t xdrstdio_putlong (XDR *, const long *);
static bool_t xdrstdio_getbytes (XDR *, caddr_t, u_int);
static bool_t xdrstdio_putbytes (XDR *, const char *, u_int);
static u_int xdrstdio_getpos (const XDR *);
static bool_t xdrstdio_setpos (XDR *, u_int);
static long *xdrstdio_inline (XDR *, int);
static void xdrstdio_destroy (XDR *);
/*
* Ops vector for stdio type XDR
*/
static const struct xdr_ops xdrstdio_ops =
{
xdrstdio_getlong, /* deserialize a long int */
xdrstdio_putlong, /* serialize a long int */
xdrstdio_getbytes, /* deserialize counted bytes */
xdrstdio_putbytes, /* serialize counted bytes */
xdrstdio_getpos, /* get offset in the stream */
xdrstdio_setpos, /* set offset in the stream */
xdrstdio_inline, /* prime stream for inline macros */
xdrstdio_destroy /* destroy stream */
};
/*
* Initialize a stdio xdr stream.
* Sets the xdr stream handle xdrs for use on the stream file.
* Operation flag is set to op.
*/
void
xdrstdio_create (xdrs, file, op)
XDR *xdrs;
FILE *file;
enum xdr_op op;
{
xdrs->x_op = op;
/* We have to add the const since the `struct xdr_ops' in `struct XDR'
is not `const'. */
xdrs->x_ops = (struct xdr_ops *) &xdrstdio_ops;
xdrs->x_private = (caddr_t) file;
xdrs->x_handy = 0;
xdrs->x_base = 0;
}
/*
* Destroy a stdio xdr stream.
* Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create.
*/
static void
xdrstdio_destroy (xdrs)
XDR *xdrs;
{
(void) fflush ((FILE *) xdrs->x_private);
/* xx should we close the file ?? */
};
static bool_t
xdrstdio_getlong (xdrs, lp)
XDR *xdrs;
long *lp;
{
int32_t mycopy;
if (fread ((caddr_t) & mycopy, 4, 1, (FILE *) xdrs->x_private) != 1)
return FALSE;
*lp = (int32_t) ntohl (mycopy);
return TRUE;
}
static bool_t
xdrstdio_putlong (XDR *xdrs, const long *lp)
{
long mycopy = htonl (*lp);
lp = &mycopy;
if (fwrite ((caddr_t) lp, 4, 1, (FILE *) xdrs->x_private) != 1)
return FALSE;
return TRUE;
}
static bool_t
xdrstdio_getbytes (xdrs, addr, len)
XDR *xdrs;
const caddr_t addr;
u_int len;
{
if ((len != 0) && (fread (addr, (int) len, 1, (FILE *) xdrs->x_private) != 1))
return FALSE;
return TRUE;
}
static bool_t
xdrstdio_putbytes (XDR *xdrs, const char *addr, u_int len)
{
if ((len != 0) && (fwrite (addr, (int) len, 1, (FILE *) xdrs->x_private) != 1))
return FALSE;
return TRUE;
}
static u_int
xdrstdio_getpos (const XDR *xdrs)
{
return (u_int) ftell ((FILE *) xdrs->x_private);
}
static bool_t
xdrstdio_setpos (XDR *xdrs, u_int pos)
{
return fseek ((FILE *) xdrs->x_private, (long) pos, 0) < 0 ? FALSE : TRUE;
}
static long *
xdrstdio_inline (XDR *xdrs, int len)
{
/*
* Must do some work to implement this: must insure
* enough data in the underlying stdio buffer,
* that the buffer is aligned so that we can indirect through a
* long *, and stuff this pointer in xdrs->x_buf. Doing
* a fread or fwrite to a scratch buffer would defeat
* most of the gains to be had here and require storage
* management on this buffer, so we don't do this.
*/
return NULL;
}
|
