1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/emul/mini/src/main/java/org/apidesign/bck2brwsr/emul/zip/ZStream.java Fri Mar 22 16:59:47 2013 +0100
1.3 @@ -0,0 +1,253 @@
1.4 +/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
1.5 +/*
1.6 +Copyright (c) 2000-2011 ymnk, JCraft,Inc. All rights reserved.
1.7 +
1.8 +Redistribution and use in source and binary forms, with or without
1.9 +modification, are permitted provided that the following conditions are met:
1.10 +
1.11 + 1. Redistributions of source code must retain the above copyright notice,
1.12 + this list of conditions and the following disclaimer.
1.13 +
1.14 + 2. Redistributions in binary form must reproduce the above copyright
1.15 + notice, this list of conditions and the following disclaimer in
1.16 + the documentation and/or other materials provided with the distribution.
1.17 +
1.18 + 3. The names of the authors may not be used to endorse or promote products
1.19 + derived from this software without specific prior written permission.
1.20 +
1.21 +THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
1.22 +INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
1.23 +FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
1.24 +INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
1.25 +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.26 +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
1.27 +OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.28 +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.29 +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
1.30 +EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.31 + */
1.32 +/*
1.33 + * This program is based on zlib-1.1.3, so all credit should go authors
1.34 + * Jean-loup Gailly(jloup@gzip.org) and Mark Adler(madler@alumni.caltech.edu)
1.35 + * and contributors of zlib.
1.36 + */
1.37 +
1.38 +package org.apidesign.bck2brwsr.emul.zip;
1.39 +
1.40 +import org.apidesign.bck2brwsr.emul.lang.System;
1.41 +
1.42 +/**
1.43 + * ZStream
1.44 + *
1.45 + * @deprecated Not for public use in the future.
1.46 + */
1.47 +@Deprecated
1.48 +class ZStream{
1.49 +
1.50 + static final private int MAX_WBITS=15; // 32K LZ77 window
1.51 + static final private int DEF_WBITS=MAX_WBITS;
1.52 +
1.53 + static final private int Z_NO_FLUSH=0;
1.54 + static final private int Z_PARTIAL_FLUSH=1;
1.55 + static final private int Z_SYNC_FLUSH=2;
1.56 + static final private int Z_FULL_FLUSH=3;
1.57 + static final private int Z_FINISH=4;
1.58 +
1.59 + static final private int MAX_MEM_LEVEL=9;
1.60 +
1.61 + static final private int Z_OK=0;
1.62 + static final private int Z_STREAM_END=1;
1.63 + static final private int Z_NEED_DICT=2;
1.64 + static final private int Z_ERRNO=-1;
1.65 + static final private int Z_STREAM_ERROR=-2;
1.66 + static final private int Z_DATA_ERROR=-3;
1.67 + static final private int Z_MEM_ERROR=-4;
1.68 + static final private int Z_BUF_ERROR=-5;
1.69 + static final private int Z_VERSION_ERROR=-6;
1.70 +
1.71 + public byte[] next_in; // next input byte
1.72 + public int next_in_index;
1.73 + public int avail_in; // number of bytes available at next_in
1.74 + public long total_in; // total nb of input bytes read so far
1.75 +
1.76 + public byte[] next_out; // next output byte should be put there
1.77 + public int next_out_index;
1.78 + public int avail_out; // remaining free space at next_out
1.79 + public long total_out; // total nb of bytes output so far
1.80 +
1.81 + public String msg;
1.82 +
1.83 + Inflate istate;
1.84 +
1.85 + int data_type; // best guess about the data type: ascii or binary
1.86 +
1.87 + Checksum adler;
1.88 +
1.89 + public ZStream(){
1.90 + this(new Adler32());
1.91 + }
1.92 +
1.93 + public ZStream(Checksum adler){
1.94 + this.adler=adler;
1.95 + }
1.96 +
1.97 + public int inflateInit(){
1.98 + return inflateInit(DEF_WBITS);
1.99 + }
1.100 + public int inflateInit(boolean nowrap){
1.101 + return inflateInit(DEF_WBITS, nowrap);
1.102 + }
1.103 + public int inflateInit(int w){
1.104 + return inflateInit(w, false);
1.105 + }
1.106 +
1.107 + public int inflateInit(int w, boolean nowrap){
1.108 + istate=new Inflate(this);
1.109 + return istate.inflateInit(nowrap?-w:w);
1.110 + }
1.111 +
1.112 + public int inflate(int f){
1.113 + if(istate==null) return Z_STREAM_ERROR;
1.114 + return istate.inflate(f);
1.115 + }
1.116 + public int inflateEnd(){
1.117 + if(istate==null) return Z_STREAM_ERROR;
1.118 + int ret=istate.inflateEnd();
1.119 +// istate = null;
1.120 + return ret;
1.121 + }
1.122 +
1.123 + public int inflateSync(){
1.124 + if(istate == null)
1.125 + return Z_STREAM_ERROR;
1.126 + return istate.inflateSync();
1.127 + }
1.128 + public int inflateSyncPoint(){
1.129 + if(istate == null)
1.130 + return Z_STREAM_ERROR;
1.131 + return istate.inflateSyncPoint();
1.132 + }
1.133 + public int inflateSetDictionary(byte[] dictionary, int dictLength){
1.134 + if(istate == null)
1.135 + return Z_STREAM_ERROR;
1.136 + return istate.inflateSetDictionary(dictionary, dictLength);
1.137 + }
1.138 + public boolean inflateFinished(){
1.139 + return istate.mode==12 /*DONE*/;
1.140 + }
1.141 +
1.142 +
1.143 + public long getAdler(){
1.144 + return adler.getValue();
1.145 + }
1.146 +
1.147 + public void free(){
1.148 + next_in=null;
1.149 + next_out=null;
1.150 + msg=null;
1.151 + }
1.152 +
1.153 + public void setOutput(byte[] buf){
1.154 + setOutput(buf, 0, buf.length);
1.155 + }
1.156 +
1.157 + public void setOutput(byte[] buf, int off, int len){
1.158 + next_out = buf;
1.159 + next_out_index = off;
1.160 + avail_out = len;
1.161 + }
1.162 +
1.163 + public void setInput(byte[] buf){
1.164 + setInput(buf, 0, buf.length, false);
1.165 + }
1.166 +
1.167 + public void setInput(byte[] buf, boolean append){
1.168 + setInput(buf, 0, buf.length, append);
1.169 + }
1.170 +
1.171 + public void setInput(byte[] buf, int off, int len, boolean append){
1.172 + if(len<=0 && append && next_in!=null) return;
1.173 +
1.174 + if(avail_in>0 && append){
1.175 + byte[] tmp = new byte[avail_in+len];
1.176 + System.arraycopy(next_in, next_in_index, tmp, 0, avail_in);
1.177 + System.arraycopy(buf, off, tmp, avail_in, len);
1.178 + next_in=tmp;
1.179 + next_in_index=0;
1.180 + avail_in+=len;
1.181 + }
1.182 + else{
1.183 + next_in=buf;
1.184 + next_in_index=off;
1.185 + avail_in=len;
1.186 + }
1.187 + }
1.188 +
1.189 + public byte[] getNextIn(){
1.190 + return next_in;
1.191 + }
1.192 +
1.193 + public void setNextIn(byte[] next_in){
1.194 + this.next_in = next_in;
1.195 + }
1.196 +
1.197 + public int getNextInIndex(){
1.198 + return next_in_index;
1.199 + }
1.200 +
1.201 + public void setNextInIndex(int next_in_index){
1.202 + this.next_in_index = next_in_index;
1.203 + }
1.204 +
1.205 + public int getAvailIn(){
1.206 + return avail_in;
1.207 + }
1.208 +
1.209 + public void setAvailIn(int avail_in){
1.210 + this.avail_in = avail_in;
1.211 + }
1.212 +
1.213 + public byte[] getNextOut(){
1.214 + return next_out;
1.215 + }
1.216 +
1.217 + public void setNextOut(byte[] next_out){
1.218 + this.next_out = next_out;
1.219 + }
1.220 +
1.221 + public int getNextOutIndex(){
1.222 + return next_out_index;
1.223 + }
1.224 +
1.225 + public void setNextOutIndex(int next_out_index){
1.226 + this.next_out_index = next_out_index;
1.227 + }
1.228 +
1.229 + public int getAvailOut(){
1.230 + return avail_out;
1.231 +
1.232 + }
1.233 +
1.234 + public void setAvailOut(int avail_out){
1.235 + this.avail_out = avail_out;
1.236 + }
1.237 +
1.238 + public long getTotalOut(){
1.239 + return total_out;
1.240 + }
1.241 +
1.242 + public long getTotalIn(){
1.243 + return total_in;
1.244 + }
1.245 +
1.246 + public String getMessage(){
1.247 + return msg;
1.248 + }
1.249 +
1.250 + /**
1.251 + * Those methods are expected to be override by Inflater and Deflater.
1.252 + * In the future, they will become abstract methods.
1.253 + */
1.254 + public int end(){ return Z_OK; }
1.255 + public boolean finished(){ return false; }
1.256 +}