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/*
* Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <stdint.h>
typedef unsigned short ushort;
typedef unsigned int uint32_t;
typedef unsigned char uchar;
struct unpacker;
struct jar
{
// JAR file writer
FILE *jarfp;
int default_modtime;
// Used by unix2dostime:
int modtime_cache;
uint32_t dostime_cache;
// Private members
fillbytes central_directory;
ushort central_directory_count;
uint32_t output_file_offset;
fillbytes deflated; // temporary buffer
// pointer to outer unpacker, for error checks etc.
unpacker *u;
// Public Methods
void openJarFile(const char *fname);
void addJarEntry(const char *fname, bool deflate_hint, int modtime, bytes &head,
bytes &tail);
void addDirectoryToJarFile(const char *dir_name);
void closeJarFile(bool central);
void init(unpacker *u_);
void free()
{
central_directory.free();
deflated.free();
}
void reset()
{
free();
init(u);
}
// Private Methods
void write_data(void *ptr, int len);
void write_data(bytes &b)
{
write_data(b.ptr, (int)b.len);
}
void add_to_jar_directory(const char *fname, bool store, int modtime, int len, int clen,
uint32_t crc);
void write_jar_header(const char *fname, bool store, int modtime, int len, int clen,
unsigned int crc);
void write_central_directory();
uint32_t dostime(int y, int n, int d, int h, int m, int s);
uint32_t get_dostime(int modtime);
// The definitions of these depend on the NO_ZLIB option:
bool deflate_bytes(bytes &head, bytes &tail);
static uint32_t get_crc32(uint32_t c, unsigned char *ptr, uint32_t len);
};
struct gunzip
{
// optional gzip input stream control block
// pointer to outer unpacker, for error checks etc.
unpacker *u;
void *read_input_fn; // underlying \bchar\b stream
void *zstream; // inflater state
char inbuf[1 << 14]; // input buffer
void init(unpacker *u_); // pushes new value on u->read_input_fn
void free();
void start(int magic);
// private stuff
void read_fixed_field(char *buf, size_t buflen);
};
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