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
|
/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* zip archive handling (requires zziplib)
*/
#include "config.h"
#include "archive/zzip_archive_plugin.h"
#include "archive_api.h"
#include "archive_api.h"
#include "input_plugin.h"
#include <zzip/zzip.h>
#include <glib.h>
#include <string.h>
struct zzip_archive {
ZZIP_DIR *dir;
ZZIP_FILE *file;
size_t length;
GSList *list;
GSList *iter;
};
static const struct input_plugin zzip_input_plugin;
static inline GQuark
zzip_quark(void)
{
return g_quark_from_static_string("zzip");
}
/* archive open && listing routine */
static struct archive_file *
zzip_archive_open(const char *pathname)
{
struct zzip_archive *context = g_malloc(sizeof(*context));
ZZIP_DIRENT dirent;
// open archive
context->list = NULL;
context->dir = zzip_dir_open(pathname, NULL);
if (context->dir == NULL) {
g_warning("zipfile %s open failed\n", pathname);
return NULL;
}
while (zzip_dir_read(context->dir, &dirent)) {
//add only files
if (dirent.st_size > 0) {
context->list = g_slist_prepend(context->list,
g_strdup(dirent.d_name));
}
}
return (struct archive_file *)context;
}
static void
zzip_archive_scan_reset(struct archive_file *file)
{
struct zzip_archive *context = (struct zzip_archive *) file;
//reset iterator
context->iter = context->list;
}
static char *
zzip_archive_scan_next(struct archive_file *file)
{
struct zzip_archive *context = (struct zzip_archive *) file;
char *data = NULL;
if (context->iter != NULL) {
///fetch data and goto next
data = context->iter->data;
context->iter = g_slist_next(context->iter);
}
return data;
}
static void
zzip_archive_close(struct archive_file *file)
{
struct zzip_archive *context = (struct zzip_archive *) file;
if (context->list) {
//free list
for (GSList *tmp = context->list; tmp != NULL; tmp = g_slist_next(tmp))
g_free(tmp->data);
g_slist_free(context->list);
}
//close archive
zzip_dir_close (context->dir);
g_free(context);
}
/* single archive handling */
static bool
zzip_archive_open_stream(struct archive_file *file, struct input_stream *is,
const char *pathname, GError **error_r)
{
struct zzip_archive *context = (struct zzip_archive *) file;
ZZIP_STAT z_stat;
//setup file ops
is->plugin = &zzip_input_plugin;
//insert back reference
is->data = context;
//we are seekable (but its not recommendent to do so)
is->seekable = true;
context->file = zzip_file_open(context->dir, pathname, 0);
if (!context->file) {
g_set_error(error_r, zzip_quark(), 0,
"not found in the ZIP file: %s", pathname);
return false;
}
zzip_file_stat(context->file, &z_stat);
context->length = z_stat.st_size;
return true;
}
static void
zzip_input_close(struct input_stream *is)
{
struct zzip_archive *context = (struct zzip_archive *) is->data;
zzip_file_close (context->file);
zzip_archive_close((struct archive_file *)context);
}
static size_t
zzip_input_read(struct input_stream *is, void *ptr, size_t size,
GError **error_r)
{
struct zzip_archive *context = (struct zzip_archive *) is->data;
int ret;
ret = zzip_file_read(context->file, ptr, size);
if (ret < 0) {
g_set_error(error_r, zzip_quark(), ret,
"zzip_file_read() has failed");
return 0;
}
return ret;
}
static bool
zzip_input_eof(struct input_stream *is)
{
struct zzip_archive *context = (struct zzip_archive *) is->data;
return ((size_t) zzip_tell(context->file) == context->length);
}
static bool
zzip_input_seek(struct input_stream *is,
goffset offset, int whence, GError **error_r)
{
struct zzip_archive *context = (struct zzip_archive *) is->data;
zzip_off_t ofs = zzip_seek(context->file, offset, whence);
if (ofs != -1) {
g_set_error(error_r, zzip_quark(), ofs,
"zzip_seek() has failed");
is->offset = ofs;
return true;
}
return false;
}
/* exported structures */
static const char *const zzip_archive_extensions[] = {
"zip",
NULL
};
static const struct input_plugin zzip_input_plugin = {
.close = zzip_input_close,
.read = zzip_input_read,
.eof = zzip_input_eof,
.seek = zzip_input_seek,
};
const struct archive_plugin zzip_archive_plugin = {
.name = "zzip",
.open = zzip_archive_open,
.scan_reset = zzip_archive_scan_reset,
.scan_next = zzip_archive_scan_next,
.open_stream = zzip_archive_open_stream,
.close = zzip_archive_close,
.suffixes = zzip_archive_extensions
};
|
