1 /**file test-fuzzer.c
2 * from test-parse.c and test-mnote.c
3 *
4 * \brief Completely parse all files given on the command line.
5 *
6 * Copyright (C) 2007 Hans Ulrich Niedermann <gp@n-dimensional.de>
7 * Copyright 2002 Lutz Mueller <lutz@users.sourceforge.net>
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301 USA.
23 *
24 */
25
26 #include <string.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29
30 #include "libexif/exif-data.h"
31 #include "libexif/exif-system.h"
32
33 /** Callback function handling an ExifEntry. */
34 void content_foreach_func(ExifEntry *entry, void *callback_data);
content_foreach_func(ExifEntry * entry,void * UNUSED (callback_data))35 void content_foreach_func(ExifEntry *entry, void *UNUSED(callback_data))
36 {
37 char buf[2001];
38
39 /* ensure \0 */
40 buf[sizeof(buf)-1] = 0;
41 buf[sizeof(buf)-2] = 0;
42 exif_tag_get_name(entry->tag);
43 exif_format_get_name(entry->format);
44 exif_entry_get_value(entry, buf, sizeof(buf)-1);
45 if (buf[sizeof(buf)-2] != 0) abort();
46 }
47
48
49 /** Callback function handling an ExifContent (corresponds 1:1 to an IFD). */
50 void data_foreach_func(ExifContent *content, void *callback_data);
data_foreach_func(ExifContent * content,void * callback_data)51 void data_foreach_func(ExifContent *content, void *callback_data)
52 {
53 printf(" Content %p: ifd=%d\n", content, exif_content_get_ifd(content));
54 exif_content_foreach_entry(content, content_foreach_func, callback_data);
55 }
56 static int
test_exif_data(ExifData * d)57 test_exif_data (ExifData *d)
58 {
59 unsigned int i, c;
60 char v[1024];
61 ExifMnoteData *md;
62
63 fprintf (stdout, "Byte order: %s\n",
64 exif_byte_order_get_name (exif_data_get_byte_order (d)));
65
66 md = exif_data_get_mnote_data (d);
67 if (!md) {
68 fprintf (stderr, "Could not parse maker note!\n");
69 return 1;
70 }
71
72 exif_mnote_data_ref (md);
73 exif_mnote_data_unref (md);
74
75 c = exif_mnote_data_count (md);
76 for (i = 0; i < c; i++) {
77 const char *name = exif_mnote_data_get_name (md, i);
78 if (!name) break;
79 exif_mnote_data_get_name (md, i);
80 exif_mnote_data_get_title (md, i);
81 exif_mnote_data_get_description (md, i);
82 exif_mnote_data_get_value (md, i, v, sizeof (v));
83 }
84
85 return 0;
86 }
87
88
89
90 /** Run EXIF parsing test on the given file. */
test_parse(const char * filename,void * callback_data)91 static void test_parse(const char *filename, void *callback_data)
92 {
93 ExifData *d;
94 unsigned int buf_size;
95 unsigned char *buf;
96
97 d = exif_data_new_from_file(filename);
98 exif_data_foreach_content(d, data_foreach_func, callback_data);
99 test_exif_data (d);
100
101 buf = NULL;
102 exif_data_save_data (d, &buf, &buf_size);
103 free (buf);
104
105 exif_data_set_byte_order(d, EXIF_BYTE_ORDER_INTEL);
106
107 buf = NULL;
108 exif_data_save_data (d, &buf, &buf_size);
109 free (buf);
110
111
112 exif_data_unref(d);
113 }
114
115
116 /** Main program. */
main(const int argc,const char * argv[])117 int main(const int argc, const char *argv[])
118 {
119 int i;
120 void *callback_data = NULL;
121
122 for (i=1; i<argc; i++) {
123 test_parse(argv[i], callback_data);
124 }
125 return 0;
126 }
127