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
|
// natInflater.cc - Implementation of Inflater native methods.
/* Copyright (C) 1999 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
// Written by Tom Tromey <tromey@cygnus.com>
#include <config.h>
#include <zlib.h>
#include <stdlib.h>
#include <gcj/cni.h>
#include <jvm.h>
#include <java/util/zip/Inflater.h>
#include <java/util/zip/DataFormatException.h>
#include <java/lang/InternalError.h>
#include <java/lang/NullPointerException.h>
#include <java/lang/ArrayIndexOutOfBoundsException.h>
#include <java/lang/OutOfMemoryError.h>
// A couple of helper functions used to interface with zlib's
// allocation.
void *
_Jv_ZMalloc (void *, uInt nitems, uInt size)
{
return _Jv_Malloc (nitems * size);
}
void
_Jv_ZFree (void *, void *addr)
{
_Jv_Free (addr);
}
void
java::util::zip::Inflater::end ()
{
JvSynchronize sync (this);
// Just ignore errors.
inflateEnd ((z_streamp) zstream);
_Jv_Free (zstream);
zstream = NULL;
}
jint
java::util::zip::Inflater::getAdler ()
{
JvSynchronize sync (this);
z_streamp s = (z_streamp) zstream;
return s->adler;
}
jint
java::util::zip::Inflater::getRemaining ()
{
JvSynchronize sync (this);
z_streamp s = (z_streamp) zstream;
return s->avail_in;
}
jint
java::util::zip::Inflater::getTotalIn ()
{
JvSynchronize sync (this);
z_streamp s = (z_streamp) zstream;
return s->total_in;
}
jint
java::util::zip::Inflater::getTotalOut ()
{
JvSynchronize sync (this);
z_streamp s = (z_streamp) zstream;
return s->total_out;
}
jint
java::util::zip::Inflater::inflate (jbyteArray buf, jint off, jint len)
{
JvSynchronize sync (this);
z_streamp s = (z_streamp) zstream;
if (! buf)
_Jv_Throw (new java::lang::NullPointerException);
if (off < 0 || len < 0 || off + len > buf->length)
_Jv_Throw (new java::lang::ArrayIndexOutOfBoundsException);
if (len == 0)
return 0;
s->next_out = (Bytef *) (elements (buf) + off);
s->avail_out = len;
switch (::inflate (s, Z_SYNC_FLUSH))
{
case Z_STREAM_END:
is_finished = true;
if (s->avail_out == (unsigned int) len)
return -1;
break;
case Z_NEED_DICT:
dict_needed = true;
break;
case Z_DATA_ERROR:
_Jv_Throw (new java::util::zip::DataFormatException);
break;
case Z_MEM_ERROR:
_Jv_Throw (new java::lang::OutOfMemoryError);
break;
case Z_BUF_ERROR:
// FIXME?
_Jv_Throw (new java::lang::InternalError);
break;
case Z_OK:
break;
}
return len - s->avail_out;
}
void
java::util::zip::Inflater::reset ()
{
JvSynchronize sync (this);
z_streamp s = (z_streamp) zstream;
// Just ignore errors.
inflateReset (s);
}
void
java::util::zip::Inflater::setDictionary (jbyteArray buf, jint off, jint len)
{
JvSynchronize sync (this);
z_streamp s = (z_streamp) zstream;
if (! buf)
_Jv_Throw (new java::lang::NullPointerException);
if (off < 0 || len < 0 || off + len > buf->length)
_Jv_Throw (new java::lang::ArrayIndexOutOfBoundsException);
// Ignore errors.
inflateSetDictionary (s, (Bytef *) (elements (buf) + off), len);
dict_needed = false;
}
void
java::util::zip::Inflater::setInput (jbyteArray buf, jint off, jint len)
{
JvSynchronize sync (this);
z_streamp s = (z_streamp) zstream;
if (! buf)
_Jv_Throw (new java::lang::NullPointerException);
if (off < 0 || len < 0 || off + len > buf->length)
_Jv_Throw (new java::lang::ArrayIndexOutOfBoundsException);
s->next_in = (Bytef *) (elements (buf) + off);
s->avail_in = len;
}
void
java::util::zip::Inflater::init (jboolean no_header)
{
z_stream_s *stream = (z_stream_s *) _Jv_Malloc (sizeof (z_stream_s));
stream->next_in = Z_NULL;
stream->avail_in = 0;
stream->zalloc = _Jv_ZMalloc;
stream->zfree = _Jv_ZFree;
stream->opaque = NULL;
// Handle NO_HEADER using undocumented zlib feature.
int wbits = MAX_WBITS;
if (no_header)
wbits = - wbits;
if (inflateInit2 (stream, wbits) != Z_OK)
{
jstring msg = NULL;
if (stream->msg != NULL)
msg = JvNewStringLatin1 (stream->msg);
_Jv_Throw (new java::lang::InternalError (msg));
}
zstream = reinterpret_cast<gnu::gcj::RawData *> (stream);
is_finished = false;
dict_needed = false;
}
|
