From f2902217b38cf2e16e851ae84d61247f8e828180 Mon Sep 17 00:00:00 2001 From: wolfbeast Date: Mon, 25 Mar 2019 17:53:14 +0100 Subject: Update the 7z installer stub source to 18.05. Tag #1022 --- .../7zstub/src/Java/SevenZip/LzmaAlone.java | 253 +++++++++++++++++++++ 1 file changed, 253 insertions(+) create mode 100644 other-licenses/7zstub/src/Java/SevenZip/LzmaAlone.java (limited to 'other-licenses/7zstub/src/Java/SevenZip/LzmaAlone.java') diff --git a/other-licenses/7zstub/src/Java/SevenZip/LzmaAlone.java b/other-licenses/7zstub/src/Java/SevenZip/LzmaAlone.java new file mode 100644 index 000000000..de39a22cc --- /dev/null +++ b/other-licenses/7zstub/src/Java/SevenZip/LzmaAlone.java @@ -0,0 +1,253 @@ +package SevenZip; + +public class LzmaAlone +{ + static public class CommandLine + { + public static final int kEncode = 0; + public static final int kDecode = 1; + public static final int kBenchmak = 2; + + public int Command = -1; + public int NumBenchmarkPasses = 10; + + public int DictionarySize = 1 << 23; + public boolean DictionarySizeIsDefined = false; + + public int Lc = 3; + public int Lp = 0; + public int Pb = 2; + + public int Fb = 128; + public boolean FbIsDefined = false; + + public boolean Eos = false; + + public int Algorithm = 2; + public int MatchFinder = 1; + + public String InFile; + public String OutFile; + + boolean ParseSwitch(String s) + { + if (s.startsWith("d")) + { + DictionarySize = 1 << Integer.parseInt(s.substring(1)); + DictionarySizeIsDefined = true; + } + else if (s.startsWith("fb")) + { + Fb = Integer.parseInt(s.substring(2)); + FbIsDefined = true; + } + else if (s.startsWith("a")) + Algorithm = Integer.parseInt(s.substring(1)); + else if (s.startsWith("lc")) + Lc = Integer.parseInt(s.substring(2)); + else if (s.startsWith("lp")) + Lp = Integer.parseInt(s.substring(2)); + else if (s.startsWith("pb")) + Pb = Integer.parseInt(s.substring(2)); + else if (s.startsWith("eos")) + Eos = true; + else if (s.startsWith("mf")) + { + String mfs = s.substring(2); + if (mfs.equals("bt2")) + MatchFinder = 0; + else if (mfs.equals("bt4")) + MatchFinder = 1; + else if (mfs.equals("bt4b")) + MatchFinder = 2; + else + return false; + } + else + return false; + return true; + } + + public boolean Parse(String[] args) throws Exception + { + int pos = 0; + boolean switchMode = true; + for (int i = 0; i < args.length; i++) + { + String s = args[i]; + if (s.length() == 0) + return false; + if (switchMode) + { + if (s.compareTo("--") == 0) + { + switchMode = false; + continue; + } + if (s.charAt(0) == '-') + { + String sw = s.substring(1).toLowerCase(); + if (sw.length() == 0) + return false; + try + { + if (!ParseSwitch(sw)) + return false; + } + catch (NumberFormatException e) + { + return false; + } + continue; + } + } + if (pos == 0) + { + if (s.equalsIgnoreCase("e")) + Command = kEncode; + else if (s.equalsIgnoreCase("d")) + Command = kDecode; + else if (s.equalsIgnoreCase("b")) + Command = kBenchmak; + else + return false; + } + else if(pos == 1) + { + if (Command == kBenchmak) + { + try + { + NumBenchmarkPasses = Integer.parseInt(s); + if (NumBenchmarkPasses < 1) + return false; + } + catch (NumberFormatException e) + { + return false; + } + } + else + InFile = s; + } + else if(pos == 2) + OutFile = s; + else + return false; + pos++; + continue; + } + return true; + } + } + + + static void PrintHelp() + { + System.out.println( + "\nUsage: LZMA [...] inputFile outputFile\n" + + " e: encode file\n" + + " d: decode file\n" + + " b: Benchmark\n" + + "\n" + + // " -a{N}: set compression mode - [0, 1], default: 1 (max)\n" + + " -d{N}: set dictionary - [0,28], default: 23 (8MB)\n" + + " -fb{N}: set number of fast bytes - [5, 273], default: 128\n" + + " -lc{N}: set number of literal context bits - [0, 8], default: 3\n" + + " -lp{N}: set number of literal pos bits - [0, 4], default: 0\n" + + " -pb{N}: set number of pos bits - [0, 4], default: 2\n" + + " -mf{MF_ID}: set Match Finder: [bt2, bt4], default: bt4\n" + + " -eos: write End Of Stream marker\n" + ); + } + + public static void main(String[] args) throws Exception + { + System.out.println("\nLZMA (Java) 4.61 2008-11-23\n"); + + if (args.length < 1) + { + PrintHelp(); + return; + } + + CommandLine params = new CommandLine(); + if (!params.Parse(args)) + { + System.out.println("\nIncorrect command"); + return; + } + + if (params.Command == CommandLine.kBenchmak) + { + int dictionary = (1 << 21); + if (params.DictionarySizeIsDefined) + dictionary = params.DictionarySize; + if (params.MatchFinder > 1) + throw new Exception("Unsupported match finder"); + SevenZip.LzmaBench.LzmaBenchmark(params.NumBenchmarkPasses, dictionary); + } + else if (params.Command == CommandLine.kEncode || params.Command == CommandLine.kDecode) + { + java.io.File inFile = new java.io.File(params.InFile); + java.io.File outFile = new java.io.File(params.OutFile); + + java.io.BufferedInputStream inStream = new java.io.BufferedInputStream(new java.io.FileInputStream(inFile)); + java.io.BufferedOutputStream outStream = new java.io.BufferedOutputStream(new java.io.FileOutputStream(outFile)); + + boolean eos = false; + if (params.Eos) + eos = true; + if (params.Command == CommandLine.kEncode) + { + SevenZip.Compression.LZMA.Encoder encoder = new SevenZip.Compression.LZMA.Encoder(); + if (!encoder.SetAlgorithm(params.Algorithm)) + throw new Exception("Incorrect compression mode"); + if (!encoder.SetDictionarySize(params.DictionarySize)) + throw new Exception("Incorrect dictionary size"); + if (!encoder.SetNumFastBytes(params.Fb)) + throw new Exception("Incorrect -fb value"); + if (!encoder.SetMatchFinder(params.MatchFinder)) + throw new Exception("Incorrect -mf value"); + if (!encoder.SetLcLpPb(params.Lc, params.Lp, params.Pb)) + throw new Exception("Incorrect -lc or -lp or -pb value"); + encoder.SetEndMarkerMode(eos); + encoder.WriteCoderProperties(outStream); + long fileSize; + if (eos) + fileSize = -1; + else + fileSize = inFile.length(); + for (int i = 0; i < 8; i++) + outStream.write((int)(fileSize >>> (8 * i)) & 0xFF); + encoder.Code(inStream, outStream, -1, -1, null); + } + else + { + int propertiesSize = 5; + byte[] properties = new byte[propertiesSize]; + if (inStream.read(properties, 0, propertiesSize) != propertiesSize) + throw new Exception("input .lzma file is too short"); + SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder(); + if (!decoder.SetDecoderProperties(properties)) + throw new Exception("Incorrect stream properties"); + long outSize = 0; + for (int i = 0; i < 8; i++) + { + int v = inStream.read(); + if (v < 0) + throw new Exception("Can't read stream size"); + outSize |= ((long)v) << (8 * i); + } + if (!decoder.Code(inStream, outStream, outSize)) + throw new Exception("Error in data stream"); + } + outStream.flush(); + outStream.close(); + inStream.close(); + } + else + throw new Exception("Incorrect command"); + return; + } +} -- cgit v1.2.3