zip.h revision 16278:de18c7fc80ea
1/* 2 * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26#define ushort unsigned short 27#define uint unsigned int 28#define uchar unsigned char 29 30struct unpacker; 31 32struct jar { 33 // JAR file writer 34 FILE* jarfp; 35 int default_modtime; 36 37 const char* jarname; 38 39 // Used by unix2dostime: 40 int modtime_cache; 41 uLong dostime_cache; 42 43 // Private members 44 fillbytes central_directory; 45 uint central_directory_count; 46 uint output_file_offset; 47 fillbytes deflated; // temporary buffer 48 49 // pointer to outer unpacker, for error checks etc. 50 unpacker* u; 51 52 // Public Methods 53 void openJarFile(const char* fname); 54 void addJarEntry(const char* fname, 55 bool deflate_hint, int modtime, 56 bytes& head, bytes& tail); 57 void addDirectoryToJarFile(const char* dir_name); 58 void closeJarFile(bool central); 59 60 void init(unpacker* u_); 61 62 void free() { 63 central_directory.free(); 64 deflated.free(); 65 } 66 67 void reset() { 68 free(); 69 init(u); 70 } 71 72 // Private Methods 73 void write_data(void* ptr, size_t len); 74 void write_data(bytes& b) { write_data(b.ptr, b.len); } 75 void add_to_jar_directory(const char* fname, bool store, int modtime, 76 int len, int clen, uLong crc); 77 void write_jar_header(const char* fname, bool store, int modtime, 78 int len, int clen, unsigned int crc); 79 void write_jar_extra(int len, int clen, unsigned int crc); 80 void write_central_directory(); 81 uLong dostime(int y, int n, int d, int h, int m, int s); 82 uLong get_dostime(int modtime); 83 84 // The definitions of these depend on the NO_ZLIB option: 85 bool deflate_bytes(bytes& head, bytes& tail); 86 static uint get_crc32(uint c, unsigned char *ptr, uint len); 87 88 // error handling 89 void abort(const char* msg) { unpack_abort(msg, u); } 90 bool aborting() { return unpack_aborting(u); } 91}; 92 93struct gunzip { 94 // optional gzip input stream control block 95 96 // pointer to outer unpacker, for error checks etc. 97 unpacker* u; 98 99 void* read_input_fn; // underlying byte stream 100 void* zstream; // inflater state 101 char inbuf[1 << 14]; // input buffer 102 103 uint gzcrc; // CRC gathered from gzip *container* content 104 uint gzlen; // CRC gathered length 105 106 void init(unpacker* u_); // pushes new value on u->read_input_fn 107 108 void free(); 109 110 void start(int magic); 111 112 // private stuff 113 void read_fixed_field(char* buf, size_t buflen); 114 115 // error handling 116 void abort(const char* msg) { unpack_abort(msg, u); } 117 bool aborting() { return unpack_aborting(u); } 118}; 119