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
|
/* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* test-cp-msole.c: Test gsf-outfile-msole by cloning a file the hard way
*
* Copyright (C) 2002-2006 Jody Goldberg (jody@gnome.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2.1 of the GNU Lesser General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <gsf/gsf-utils.h>
#include <gsf/gsf-input-stdio.h>
#include <gsf/gsf-infile.h>
#include <gsf/gsf-infile-msole.h>
#include <gsf/gsf-output-stdio.h>
#include <gsf/gsf-outfile.h>
#include <gsf/gsf-outfile-msole.h>
#include <stdio.h>
static void clone_dir (GsfInfile *in, GsfOutfile *out);
static void
clone (GsfInput *input, GsfOutput *output)
{
if (gsf_input_size (input) > 0) {
guint8 const *data;
size_t len;
while ((len = gsf_input_remaining (input)) > 0) {
/* copy in odd sized chunks to exercise system */
if (len > 314)
len = 314;
if (NULL == (data = gsf_input_read (input, len, NULL))) {
g_warning ("error reading ?");
return;
}
if (!gsf_output_write (output, len, data)) {
g_warning ("error writing ?");
return;
}
}
} else if (GSF_IS_INFILE(input))
clone_dir (GSF_INFILE(input), GSF_OUTFILE(output));
gsf_output_close (output);
g_object_unref (G_OBJECT (output));
g_object_unref (G_OBJECT (input));
}
static void
clone_dir (GsfInfile *in, GsfOutfile *out)
{
GsfInput *new_input;
GsfOutput *new_output;
gboolean is_dir;
int i;
for (i = 0 ; i < gsf_infile_num_children (in) ; i++) {
new_input = gsf_infile_child_by_index (in, i);
/* In theory, if new_file is a regular file (not directory),
* it should be GsfInput only, not GsfInfile, as it is not
* structured. However, having each Infile define a 2nd class
* that only inherited from Input was cumbersome. So in
* practice, the convention is that new_input is always
* GsfInfile, but regular file is distinguished by having -1
* children.
*/
is_dir = GSF_IS_INFILE (new_input) &&
gsf_infile_num_children (GSF_INFILE (new_input)) >= 0;
new_output = gsf_outfile_new_child (out,
gsf_infile_name_by_index (in, i),
is_dir);
clone (new_input, new_output);
}
/* An observation: when you think about the explanation to is_dir
* above, you realize that clone_dir is called even for regular files.
* But nothing bad happens, as the loop is never entered.
*/
}
static int
test (char *argv[])
{
GsfInput *input;
GsfInfile *infile;
GsfOutput *output;
GsfOutfile *outfile;
GError *err = NULL;
fprintf (stderr, "%s\n", argv [1]);
input = gsf_input_stdio_new (argv[1], &err);
if (input == NULL) {
g_return_val_if_fail (err != NULL, 1);
g_warning ("'%s' error: %s", argv[1], err->message);
g_error_free (err);
return 1;
}
infile = gsf_infile_msole_new (input, &err);
g_object_unref (G_OBJECT (input));
if (infile == NULL) {
g_return_val_if_fail (err != NULL, 1);
g_warning ("'%s' Not an OLE file: %s", argv[1], err->message);
g_error_free (err);
return 1;
}
output = gsf_output_stdio_new (argv[2], &err);
if (output == NULL) {
g_return_val_if_fail (err != NULL, 1);
g_warning ("'%s' error: %s", argv[2], err->message);
g_error_free (err);
g_object_unref (G_OBJECT (infile));
return 1;
}
outfile = gsf_outfile_msole_new (output);
g_object_unref (G_OBJECT (output));
clone (GSF_INPUT (infile), GSF_OUTPUT (outfile));
return 0;
}
int
main (int argc, char *argv[])
{
int res;
if (argc != 3) {
fprintf (stderr, "%s : infile outfile\n", argv [0]);
return 1;
}
gsf_init ();
res = test (argv);
gsf_shutdown ();
return res;
}
|
