ReactOS  0.4.14-dev-833-g5f692ed
xdr_stdio.c
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1 /*
2  * Copyright (c) 2009, Sun Microsystems, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  * - Redistributions of source code must retain the above copyright notice,
8  * this list of conditions and the following disclaimer.
9  * - Redistributions in binary form must reproduce the above copyright notice,
10  * this list of conditions and the following disclaimer in the documentation
11  * and/or other materials provided with the distribution.
12  * - Neither the name of Sun Microsystems, Inc. nor the names of its
13  * contributors may be used to endorse or promote products derived
14  * from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 //#include <sys/cdefs.h>
30 
31 /*
32  * xdr_stdio.c, XDR implementation on standard i/o file.
33  *
34  * Copyright (C) 1984, Sun Microsystems, Inc.
35  *
36  * This set of routines implements a XDR on a stdio stream.
37  * XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes
38  * from the stream.
39  */
40 
41 #include <wintirpc.h>
42 #include "namespace.h"
43 #include <stdio.h>
44 
45 //#include <arpa/inet.h>
46 #include <rpc/types.h>
47 #include <rpc/xdr.h>
48 #include "un-namespace.h"
49 
50 static void xdrstdio_destroy(XDR *);
51 static bool_t xdrstdio_getlong(XDR *, long *);
52 static bool_t xdrstdio_putlong(XDR *, const long *);
53 static bool_t xdrstdio_getbytes(XDR *, char *, u_int);
54 static bool_t xdrstdio_putbytes(XDR *, const char *, u_int);
55 static u_int xdrstdio_getpos(XDR *);
56 static bool_t xdrstdio_setpos(XDR *, u_int);
57 static int32_t *xdrstdio_inline(XDR *, u_int);
58 
59 /*
60  * Ops vector for stdio type XDR
61  */
62 static const struct xdr_ops xdrstdio_ops = {
63  xdrstdio_getlong, /* deseraialize a long int */
64  xdrstdio_putlong, /* seraialize a long int */
65  xdrstdio_getbytes, /* deserialize counted bytes */
66  xdrstdio_putbytes, /* serialize counted bytes */
67  xdrstdio_getpos, /* get offset in the stream */
68  xdrstdio_setpos, /* set offset in the stream */
69  xdrstdio_inline, /* prime stream for inline macros */
70  xdrstdio_destroy /* destroy stream */
71 };
72 
73 /*
74  * Initialize a stdio xdr stream.
75  * Sets the xdr stream handle xdrs for use on the stream file.
76  * Operation flag is set to op.
77  */
78 void
80  XDR *xdrs;
81  FILE *file;
82  enum xdr_op op;
83 {
84 
85  xdrs->x_op = op;
86  xdrs->x_ops = &xdrstdio_ops;
87  xdrs->x_private = file;
88  xdrs->x_handy = 0;
89  xdrs->x_base = 0;
90 }
91 
92 /*
93  * Destroy a stdio xdr stream.
94  * Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create.
95  */
96 static void
98  XDR *xdrs;
99 {
100  (void)fflush((FILE *)xdrs->x_private);
101  /* XXX: should we close the file ?? */
102 }
103 
104 static bool_t
106  XDR *xdrs;
107  long *lp;
108 {
109 
110  if (fread(lp, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1)
111  return (FALSE);
112  *lp = (long)ntohl((u_int32_t)*lp);
113  return (TRUE);
114 }
115 
116 static bool_t
118  XDR *xdrs;
119  const long *lp;
120 {
121  long mycopy = (long)htonl((u_int32_t)*lp);
122 
123  if (fwrite(&mycopy, sizeof(int32_t), 1, (FILE *)xdrs->x_private) != 1)
124  return (FALSE);
125  return (TRUE);
126 }
127 
128 static bool_t
130  XDR *xdrs;
131  char *addr;
132  u_int len;
133 {
134 
135  if ((len != 0) && (fread(addr, (size_t)len, 1, (FILE *)xdrs->x_private) != 1))
136  return (FALSE);
137  return (TRUE);
138 }
139 
140 static bool_t
142  XDR *xdrs;
143  const char *addr;
144  u_int len;
145 {
146 
147  if ((len != 0) && (fwrite(addr, (size_t)len, 1,
148  (FILE *)xdrs->x_private) != 1))
149  return (FALSE);
150  return (TRUE);
151 }
152 
153 static u_int
155  XDR *xdrs;
156 {
157 
158  return ((u_int) ftell((FILE *)xdrs->x_private));
159 }
160 
161 static bool_t
163  XDR *xdrs;
164  u_int pos;
165 {
166 
167  return ((fseek((FILE *)xdrs->x_private, (long)pos, 0) < 0) ?
168  FALSE : TRUE);
169 }
170 
171 /* ARGSUSED */
172 static int32_t *
174  XDR *xdrs;
175  u_int len;
176 {
177 
178  /*
179  * Must do some work to implement this: must insure
180  * enough data in the underlying stdio buffer,
181  * that the buffer is aligned so that we can indirect through a
182  * long *, and stuff this pointer in xdrs->x_buf. Doing
183  * a fread or fwrite to a scratch buffer would defeat
184  * most of the gains to be had here and require storage
185  * management on this buffer, so we don't do this.
186  */
187  return (NULL);
188 }
static void xdrstdio_destroy(XDR *)
Definition: xdr_stdio.c:97
#define TRUE
Definition: types.h:120
struct png_info_def **typedef void(__cdecl typeof(png_destroy_read_struct))(struct png_struct_def **
Definition: typeof.h:49
static bool_t xdrstdio_putbytes(XDR *, const char *, u_int)
Definition: xdr_stdio.c:141
#define htonl(x)
Definition: module.h:212
int32_t bool_t
Definition: types.h:101
static bool_t xdrstdio_setpos(XDR *, u_int)
Definition: xdr_stdio.c:162
u_int x_handy
Definition: xdr.h:127
_Check_return_opt_ _CRTIMP size_t __cdecl fwrite(_In_reads_bytes_(_Size *_Count) const void *_Str, _In_ size_t _Size, _In_ size_t _Count, _Inout_ FILE *_File)
Definition: xdr.h:103
static int32_t * xdrstdio_inline(XDR *, u_int)
Definition: xdr_stdio.c:173
_Check_return_opt_ _CRTIMP size_t __cdecl fread(_Out_writes_bytes_(_ElementSize *_Count) void *_DstBuf, _In_ size_t _ElementSize, _In_ size_t _Count, _Inout_ FILE *_File)
smooth NULL
Definition: ftsmooth.c:416
_Check_return_opt_ _CRTIMP int __cdecl fseek(_Inout_ FILE *_File, _In_ long _Offset, _In_ int _Origin)
static bool_t xdrstdio_getbytes(XDR *, char *, u_int)
Definition: xdr_stdio.c:129
static const struct xdr_ops xdrstdio_ops
Definition: xdr_stdio.c:62
const char file[]
Definition: icontest.c:11
static bool_t xdrstdio_getlong(XDR *, long *)
Definition: xdr_stdio.c:105
enum xdr_op x_op
Definition: xdr.h:104
GLenum const GLvoid * addr
Definition: glext.h:9621
GLenum GLsizei len
Definition: glext.h:6722
unsigned int u_int32_t
Definition: rosdhcp.h:35
INT32 int32_t
Definition: types.h:71
void * x_private
Definition: xdr.h:125
_Check_return_opt_ _CRTIMP int __cdecl fflush(_Inout_opt_ FILE *_File)
UINT32 u_int
Definition: types.h:82
#define long
Definition: qsort.c:33
void xdrstdio_create(XDR *xdrs, FILE *file, enum xdr_op op)
Definition: xdr_stdio.c:79
const struct __rpc_xdr::xdr_ops * x_ops
static bool_t xdrstdio_putlong(XDR *, const long *)
Definition: xdr_stdio.c:117
_Check_return_ _CRTIMP long __cdecl ftell(_Inout_ FILE *_File)
xdr_op
Definition: xdr.h:84
UINT op
Definition: effect.c:223
static u_int xdrstdio_getpos(XDR *)
Definition: xdr_stdio.c:154
char * x_base
Definition: xdr.h:126
Definition: fci.c:126
#define ntohl(x)
Definition: module.h:203