111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
/*
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* Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <stdint.h>
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typedef unsigned short ushort;
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typedef unsigned int uint32_t;
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typedef unsigned char uchar;
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struct unpacker;
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struct jar
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{
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// JAR file writer
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FILE *jarfp;
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int default_modtime;
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// Used by unix2dostime:
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int modtime_cache;
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uint32_t dostime_cache;
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// Private members
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fillbytes central_directory;
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ushort central_directory_count;
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uint32_t output_file_offset;
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fillbytes deflated; // temporary buffer
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// pointer to outer unpacker, for error checks etc.
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unpacker *u;
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// Public Methods
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void openJarFile(const char *fname);
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void addJarEntry(const char *fname, bool deflate_hint, int modtime, bytes &head,
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bytes &tail);
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void addDirectoryToJarFile(const char *dir_name);
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void closeJarFile(bool central);
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void init(unpacker *u_);
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void free()
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{
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central_directory.free();
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deflated.free();
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}
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void reset()
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{
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free();
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init(u);
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}
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// Private Methods
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void write_data(void *ptr, int len);
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void write_data(bytes &b)
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{
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write_data(b.ptr, (int)b.len);
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}
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void add_to_jar_directory(const char *fname, bool store, int modtime, int len, int clen,
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uint32_t crc);
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void write_jar_header(const char *fname, bool store, int modtime, int len, int clen,
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unsigned int crc);
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void write_central_directory();
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uint32_t dostime(int y, int n, int d, int h, int m, int s);
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uint32_t get_dostime(int modtime);
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// The definitions of these depend on the NO_ZLIB option:
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bool deflate_bytes(bytes &head, bytes &tail);
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static uint32_t get_crc32(uint32_t c, unsigned char *ptr, uint32_t len);
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};
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struct gunzip
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{
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// optional gzip input stream control block
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// pointer to outer unpacker, for error checks etc.
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unpacker *u;
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void *read_input_fn; // underlying \bchar\b stream
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void *zstream; // inflater state
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char inbuf[1 << 14]; // input buffer
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void init(unpacker *u_); // pushes new value on u->read_input_fn
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void free();
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void start(int magic);
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// private stuff
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void read_fixed_field(char *buf, size_t buflen);
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};
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