summaryrefslogtreecommitdiffstats
path: root/src/H5Obogus.c
blob: ba9a8ada346e0764a825bc98473f03da5a0450b1 (plain)
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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:             H5Obogus.c
 *                      Jan 21 2003
 *                      Quincey Koziol <koziol@ncsa.uiuc.edu>
 *
 * Purpose:             "bogus" message.  This message is guaranteed to never
 *                      be found in a valid HDF5 file and is only used to
 *                      generate a test file which verifies the library's
 *                      correct operation when parsing unknown object header
 *                      messages.
 *
 *-------------------------------------------------------------------------
 */

#define H5O_PACKAGE		/*suppress error about including H5Opkg	  */

#include "H5private.h"		/* Generic Functions			*/
#include "H5Eprivate.h"		/* Error handling		  	*/
#include "H5MMprivate.h"	/* Memory management			*/
#include "H5Opkg.h"             /* Object headers			*/

#ifdef H5O_ENABLE_BOGUS

/* PRIVATE PROTOTYPES */
static void *H5O_bogus_decode(H5F_t *f, hid_t dxpl_id, H5O_t *open_oh,
    unsigned mesg_flags, unsigned *ioflags, size_t p_size, const uint8_t *p);
static herr_t H5O_bogus_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static size_t H5O_bogus_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static herr_t H5O_bogus_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, FILE * stream,
			     int indent, int fwidth);

/* This message derives from H5O message class */
const H5O_msg_class_t H5O_MSG_BOGUS_VALID[1] = {{
    H5O_BOGUS_VALID_ID,     /*message id number                 */
    "bogus valid",          /*message name for debugging        */
    0,                      /*native message size               */
    0,                      /*messages are sharable?            */
    H5O_bogus_decode,       /*decode message                    */
    H5O_bogus_encode,       /*encode message                    */
    NULL,                   /*copy the native value             */
    H5O_bogus_size,         /*raw message size                  */
    NULL,                   /*free internal memory              */
    NULL,                   /*free method                       */
    NULL,                   /* file delete method               */
    NULL,                   /* link method                      */
    NULL,                   /*set share method                  */
    NULL,                   /*can share method                  */
    NULL,                   /* pre copy native value to file    */
    NULL,                   /* copy native value to file        */
    NULL,                   /* post copy native value to file   */
    NULL,                   /* get creation index               */
    NULL,                   /* set creation index               */
    H5O_bogus_debug         /*debug the message                 */
}};

/* This message derives from H5O message class */
const H5O_msg_class_t H5O_MSG_BOGUS_INVALID[1] = {{
    H5O_BOGUS_INVALID_ID,   /*message id number                 */
    "bogus invalid",        /*message name for debugging        */
    0,                      /*native message size               */
    0,                      /*messages are sharable?            */
    H5O_bogus_decode,       /*decode message                    */
    H5O_bogus_encode,       /*encode message                    */
    NULL,                   /*copy the native value             */
    H5O_bogus_size,         /*raw message size                  */
    NULL,                   /*free internal memory              */
    NULL,                   /*free method                       */
    NULL,                   /* file delete method               */
    NULL,                   /* link method                      */
    NULL,                   /*set share method                  */
    NULL,                   /*can share method                  */
    NULL,                   /* pre copy native value to file    */
    NULL,                   /* copy native value to file        */
    NULL,                   /* post copy native value to file   */
    NULL,                   /* get creation index               */
    NULL,                   /* set creation index               */
    H5O_bogus_debug         /*debug the message                 */
}};


/*-------------------------------------------------------------------------
 * Function:    H5O_bogus_decode
 *
 * Purpose:     Decode a "bogus" message and return a pointer to a new
 *              native message struct.
 *
 * Return:      Success:        Ptr to new message in native struct.
 *
 *              Failure:        NULL
 *
 * Programmer:  Quincey Koziol
 *              koziol@ncsa.uiuc.edu
 *              Jan 21 2003
 *
 *-------------------------------------------------------------------------
 */
static void *
H5O_bogus_decode(H5F_t *f, hid_t H5_ATTR_UNUSED dxpl_id, H5O_t H5_ATTR_UNUSED *open_oh,
    unsigned H5_ATTR_UNUSED mesg_flags, unsigned H5_ATTR_UNUSED *ioflags,
    size_t H5_ATTR_UNUSED p_size, const uint8_t *p)
{
    H5O_bogus_t *mesg = NULL;
    void *ret_value;            /* Return value */

    FUNC_ENTER_NOAPI_NOINIT

    /* check args */
    HDassert(f);
    HDassert(p);

    /* Allocate the bogus message */
    if(NULL == (mesg = (H5O_bogus_t *)H5MM_calloc(sizeof(H5O_bogus_t))))
	HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")

    /* decode */
    UINT32DECODE(p, mesg->u);

    /* Validate the bogus info */
    if(mesg->u != H5O_BOGUS_VALUE)
	HGOTO_ERROR(H5E_OHDR, H5E_BADVALUE, NULL, "invalid bogus value :-)")

    /* Set return value */
    ret_value = mesg;

done:
    if(ret_value == NULL && mesg != NULL)
        H5MM_xfree(mesg);

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_bogus_decode() */


/*-------------------------------------------------------------------------
 * Function:    H5O_bogus_encode
 *
 * Purpose:     Encodes a "bogus" message.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              koziol@ncsa.uiuc.edu
 *              Jan 21 2003
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O_bogus_encode(H5F_t H5_ATTR_UNUSED *f, hbool_t H5_ATTR_UNUSED disable_shared, uint8_t *p, const void H5_ATTR_UNUSED *mesg)
{
    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* check args */
    HDassert(f);
    HDassert(p);
    HDassert(mesg);

    /* encode */
    UINT32ENCODE(p, H5O_BOGUS_VALUE);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_bogus_encode() */


/*-------------------------------------------------------------------------
 * Function:    H5O_bogus_size
 *
 * Purpose:     Returns the size of the raw message in bytes not
 *              counting the message typ or size fields, but only the data
 *              fields.  This function doesn't take into account
 *              alignment.
 *
 * Return:      Success:        Message data size in bytes w/o alignment.
 *
 *              Failure:        Negative
 *
 * Programmer:  Quincey Koziol
 *              koziol@ncsa.uiuc.edu
 *              Jan 21 2003
 *
 *-------------------------------------------------------------------------
 */
static size_t
H5O_bogus_size(const H5F_t H5_ATTR_UNUSED *f, hbool_t H5_ATTR_UNUSED disable_shared, const void H5_ATTR_UNUSED *mesg)
{
    FUNC_ENTER_NOAPI_NOINIT_NOERR

    FUNC_LEAVE_NOAPI(4)
} /* end H5O_bogus_size() */


/*-------------------------------------------------------------------------
 * Function:    H5O_bogus_debug
 *
 * Purpose:     Prints debugging info for the message.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              koziol@ncsa.uiuc.edu
 *              Jan 21 2003
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5O_bogus_debug(H5F_t H5_ATTR_UNUSED *f, hid_t H5_ATTR_UNUSED dxpl_id, const void *_mesg, FILE *stream,
	       int indent, int fwidth)
{
    const H5O_bogus_t	*mesg = (const H5O_bogus_t *)_mesg;

    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* check args */
    HDassert(f);
    HDassert(mesg);
    HDassert(stream);
    HDassert(indent >= 0);
    HDassert(fwidth >= 0);

    HDfprintf(stream, "%*s%-*s `%u'\n", indent, "", fwidth,
            "Bogus Value:", mesg->u);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_bogus_debug() */
#endif /* H5O_ENABLE_BOGUS */