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
|
/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2002 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Wez Furlong <wez@thebrainroom.com>, based on work by: |
| Hartmut Holzgraefe <hartmut@six.de> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#define IS_EXT_MODULE
#define _GNU_SOURCE
#include "php.h"
#include "php_zlib.h"
#include "fopen_wrappers.h"
struct php_gz_stream_data_t {
gzFile gz_file;
php_stream *stream;
};
static size_t php_gziop_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
{
struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
if (buf == NULL && count == 0) {
if (gzeof(self->gz_file))
return EOF;
return 0;
}
return gzread(self->gz_file, buf, count);
}
static char *php_gziop_gets(php_stream *stream, char *buf, size_t size TSRMLS_DC)
{
struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
return gzgets(self->gz_file, buf, size);
}
static size_t php_gziop_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
{
struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
return gzwrite(self->gz_file, (char*)buf, count);
}
static int php_gziop_seek(php_stream *stream, off_t offset, int whence TSRMLS_DC)
{
struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
assert(self != NULL);
if (offset == 0 && whence == SEEK_CUR)
return gztell(self->gz_file);
return gzseek(self->gz_file, offset, whence);
}
static int php_gziop_close(php_stream *stream, int close_handle TSRMLS_DC)
{
struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
int ret = EOF;
if (close_handle)
ret = gzclose(self->gz_file);
php_stream_free(self->stream, PHP_STREAM_FREE_CLOSE | (close_handle == 0 ? PHP_STREAM_FREE_PRESERVE_HANDLE : 0));
efree(self);
return ret;
}
static int php_gziop_flush(php_stream *stream TSRMLS_DC)
{
struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
return gzflush(self->gz_file, Z_SYNC_FLUSH);
}
php_stream_ops php_stream_gzio_ops = {
php_gziop_write, php_gziop_read,
php_gziop_close, php_gziop_flush,
"ZLIB",
php_gziop_seek, php_gziop_gets,
NULL, NULL
};
php_stream *php_stream_gzopen(php_stream_wrapper *wrapper, char *path, char *mode,
int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC)
{
struct php_gz_stream_data_t *self;
php_stream *stream = NULL;
self = emalloc(sizeof(*self));
if (strncasecmp("compress.zlib://", path, 16) == 0)
path += 16;
else if (strncasecmp("zlib:", path, 5) == 0)
path += 5;
self->stream = php_stream_open_wrapper(path, mode, STREAM_MUST_SEEK|options, opened_path);
if (self->stream) {
int fd;
if (SUCCESS == php_stream_cast(self->stream, PHP_STREAM_AS_FD, (void**)&fd, REPORT_ERRORS)) {
self->gz_file = gzdopen(fd, mode);
if (self->gz_file) {
stream = php_stream_alloc_rel(&php_stream_gzio_ops, self, 0, mode);
if (stream)
return stream;
gzclose(self->gz_file);
}
if (options & REPORT_ERRORS)
php_errordocref(NULL TSRMLS_CC, E_WARNING, "gzopen failed");
}
}
if (stream)
php_stream_close(stream);
if (self && self->stream)
php_stream_close(self->stream);
if (self)
efree(self);
return NULL;
}
static php_stream_wrapper_ops gzip_stream_wops = {
php_stream_gzopen,
NULL,
NULL,
NULL
};
php_stream_wrapper php_stream_gzip_wrapper = {
&gzip_stream_wops,
NULL,
0, /* is_url */
};
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
|
