ICSharpCode.SharpZipLib.Zip.Compression.Streams.InflaterInputBuffer - Coverage Report

# Summary

Class: | ICSharpCode.SharpZipLib.Zip.Compression.Streams.InflaterInputBuffer
Assembly: | ICSharpCode.SharpZipLib
File(s): | C:\Users\Neil\Documents\Visual Studio 2015\Projects\icsharpcode\SZL_master\ICSharpCode.SharpZipLib\Zip\Compression\Streams\InflaterInputStream.cs
Covered lines: | 72
Uncovered lines: | 14
Coverable lines: | 86
Total lines: | 662
Line coverage: | 83.7%
Branch coverage: | 71%

# Metrics

Method | Cyclomatic Complexity | Sequence Coverage | Branch Coverage
--- | --- | --- | ---
.ctor(...) | 1 | 0 | 0
.ctor(...) | 2 | 85.71 | 66.67
SetInflaterInput(...) | 2 | 100 | 66.67
Fill() | 4 | 100 | 100
ReadRawBuffer(...) | 1 | 100 | 100
ReadRawBuffer(...) | 5 | 73.33 | 55.56
ReadClearTextBuffer(...) | 5 | 86.67 | 77.78
ReadLeByte() | 3 | 85.71 | 80
ReadLeShort() | 1 | 100 | 100
ReadLeInt() | 1 | 100 | 100
ReadLeLong() | 1 | 100 | 100

# File(s)

## C:\Users\Neil\Documents\Visual Studio 2015\Projects\icsharpcode\SZL_master\ICSharpCode.SharpZipLib\Zip\Compression\Streams\InflaterInputStream.cs

| # | Line |  | Line coverage
--- | --- | --- | --- | ---
|  | `1` |  | `using System;`
|  | `2` |  | `using System.IO;`
|  | `3` |  | `using System.Security.Cryptography;`
|  | `4` |  | ``
|  | `5` |  | `namespace ICSharpCode.SharpZipLib.Zip.Compression.Streams`
|  | `6` |  | `{`
|  | `7` |  | `/// <summary>`
|  | `8` |  | `/// An input buffer customised for use by <see cref="InflaterInputStream"/>`
|  | `9` |  | `/// </summary>`
|  | `10` |  | `/// <remarks>`
|  | `11` |  | `/// The buffer supports decryption of incoming data.`
|  | `12` |  | `/// </remarks>`
|  | `13` |  | `public class InflaterInputBuffer`
|  | `14` |  | `{`
|  | `15` |  | `#region Constructors`
|  | `16` |  | `/// <summary>`
|  | `17` |  | `/// Initialise a new instance of <see cref="InflaterInputBuffer"/> with a default buffer size`
|  | `18` |  | `/// </summary>`
|  | `19` |  | `/// <param name="stream">The stream to buffer.</param>`
| 0 | `20` |  | `public InflaterInputBuffer(Stream stream) : this(stream, 4096)`
|  | `21` |  | `{`
| 0 | `22` |  | `}`
|  | `23` |  | ``
|  | `24` |  | `/// <summary>`
|  | `25` |  | `/// Initialise a new instance of <see cref="InflaterInputBuffer"/>`
|  | `26` |  | `/// </summary>`
|  | `27` |  | `/// <param name="stream">The stream to buffer.</param>`
|  | `28` |  | `/// <param name="bufferSize">The size to use for the buffer</param>`
|  | `29` |  | `/// <remarks>A minimum buffer size of 1KB is permitted. Lower sizes are treated as 1KB.</remarks>`
| 435 | `30` |  | `public InflaterInputBuffer(Stream stream, int bufferSize)`
|  | `31` |  | `{`
| 435 | `32` |  | `inputStream = stream;`
| 435 | `33` |  | `if (bufferSize < 1024) {`
| 0 | `34` |  | `bufferSize = 1024;`
|  | `35` |  | `}`
| 435 | `36` |  | `rawData = new byte[bufferSize];`
| 435 | `37` |  | `clearText = rawData;`
| 435 | `38` |  | `}`
|  | `39` |  | `#endregion`
|  | `40` |  | ``
|  | `41` |  | `/// <summary>`
|  | `42` |  | `/// Get the length of bytes bytes in the <see cref="RawData"/>`
|  | `43` |  | `/// </summary>`
|  | `44` |  | `public int RawLength {`
|  | `45` |  | `get {`
| 0 | `46` |  | `return rawLength;`
|  | `47` |  | `}`
|  | `48` |  | `}`
|  | `49` |  | ``
|  | `50` |  | `/// <summary>`
|  | `51` |  | `/// Get the contents of the raw data buffer.`
|  | `52` |  | `/// </summary>`
|  | `53` |  | `/// <remarks>This may contain encrypted data.</remarks>`
|  | `54` |  | `public byte[] RawData {`
|  | `55` |  | `get {`
| 0 | `56` |  | `return rawData;`
|  | `57` |  | `}`
|  | `58` |  | `}`
|  | `59` |  | ``
|  | `60` |  | `/// <summary>`
|  | `61` |  | `/// Get the number of useable bytes in <see cref="ClearText"/>`
|  | `62` |  | `/// </summary>`
|  | `63` |  | `public int ClearTextLength {`
|  | `64` |  | `get {`
| 0 | `65` |  | `return clearTextLength;`
|  | `66` |  | `}`
|  | `67` |  | `}`
|  | `68` |  | ``
|  | `69` |  | `/// <summary>`
|  | `70` |  | `/// Get the contents of the clear text buffer.`
|  | `71` |  | `/// </summary>`
|  | `72` |  | `public byte[] ClearText {`
|  | `73` |  | `get {`
| 0 | `74` |  | `return clearText;`
|  | `75` |  | `}`
|  | `76` |  | `}`
|  | `77` |  | ``
|  | `78` |  | `/// <summary>`
|  | `79` |  | `/// Get/set the number of bytes available`
|  | `80` |  | `/// </summary>`
|  | `81` |  | `public int Available {`
| 2837 | `82` |  | `get { return available; }`
| 78 | `83` |  | `set { available = value; }`
|  | `84` |  | `}`
|  | `85` |  | ``
|  | `86` |  | `/// <summary>`
|  | `87` |  | `/// Call <see cref="Inflater.SetInput(byte[], int, int)"/> passing the current clear text buffer contents.`
|  | `88` |  | `/// </summary>`
|  | `89` |  | `/// <param name="inflater">The inflater to set input for.</param>`
|  | `90` |  | `public void SetInflaterInput(Inflater inflater)`
|  | `91` |  | `{`
| 1433 | `92` |  | `if (available > 0) {`
| 1433 | `93` |  | `inflater.SetInput(clearText, clearTextLength - available, available);`
| 1433 | `94` |  | `available = 0;`
|  | `95` |  | `}`
| 1433 | `96` |  | `}`
|  | `97` |  | ``
|  | `98` |  | `/// <summary>`
|  | `99` |  | `/// Fill the buffer from the underlying input stream.`
|  | `100` |  | `/// </summary>`
|  | `101` |  | `public void Fill()`
|  | `102` |  | `{`
| 1448 | `103` |  | `rawLength = 0;`
| 1448 | `104` |  | `int toRead = rawData.Length;`
|  | `105` |  | ``
| 2896 | `106` |  | `while (toRead > 0) {`
| 1877 | `107` |  | `int count = inputStream.Read(rawData, rawLength, toRead);`
| 1877 | `108` |  | `if (count <= 0) {`
|  | `109` |  | `break;`
|  | `110` |  | `}`
| 1448 | `111` |  | `rawLength += count;`
| 1448 | `112` |  | `toRead -= count;`
|  | `113` |  | `}`
|  | `114` |  | ``
| 1448 | `115` |  | `if (cryptoTransform != null) {`
| 264 | `116` |  | `clearTextLength = cryptoTransform.TransformBlock(rawData, 0, rawLength, clearText, 0);`
| 264 | `117` |  | `} else {`
| 1184 | `118` |  | `clearTextLength = rawLength;`
|  | `119` |  | `}`
|  | `120` |  | ``
| 1448 | `121` |  | `available = clearTextLength;`
| 1448 | `122` |  | `}`
|  | `123` |  | ``
|  | `124` |  | `/// <summary>`
|  | `125` |  | `/// Read a buffer directly from the input stream`
|  | `126` |  | `/// </summary>`
|  | `127` |  | `/// <param name="buffer">The buffer to fill</param>`
|  | `128` |  | `/// <returns>Returns the number of bytes read.</returns>`
|  | `129` |  | `public int ReadRawBuffer(byte[] buffer)`
|  | `130` |  | `{`
| 159 | `131` |  | `return ReadRawBuffer(buffer, 0, buffer.Length);`
|  | `132` |  | `}`
|  | `133` |  | ``
|  | `134` |  | `/// <summary>`
|  | `135` |  | `/// Read a buffer directly from the input stream`
|  | `136` |  | `/// </summary>`
|  | `137` |  | `/// <param name="outBuffer">The buffer to read into</param>`
|  | `138` |  | `/// <param name="offset">The offset to start reading data into.</param>`
|  | `139` |  | `/// <param name="length">The number of bytes to read.</param>`
|  | `140` |  | `/// <returns>Returns the number of bytes read.</returns>`
|  | `141` |  | `public int ReadRawBuffer(byte[] outBuffer, int offset, int length)`
|  | `142` |  | `{`
| 159 | `143` |  | `if (length < 0) {`
| 0 | `144` |  | `throw new ArgumentOutOfRangeException(nameof(length));`
|  | `145` |  | `}`
|  | `146` |  | ``
| 159 | `147` |  | `int currentOffset = offset;`
| 159 | `148` |  | `int currentLength = length;`
|  | `149` |  | ``
| 318 | `150` |  | `while (currentLength > 0) {`
| 159 | `151` |  | `if (available <= 0) {`
| 0 | `152` |  | `Fill();`
| 0 | `153` |  | `if (available <= 0) {`
| 0 | `154` |  | `return 0;`
|  | `155` |  | `}`
|  | `156` |  | `}`
| 159 | `157` |  | `int toCopy = Math.Min(currentLength, available);`
| 159 | `158` |  | `System.Array.Copy(rawData, rawLength - (int)available, outBuffer, currentOffset, toCopy);`
| 159 | `159` |  | `currentOffset += toCopy;`
| 159 | `160` |  | `currentLength -= toCopy;`
| 159 | `161` |  | `available -= toCopy;`
|  | `162` |  | `}`
| 159 | `163` |  | `return length;`
|  | `164` |  | `}`
|  | `165` |  | ``
|  | `166` |  | `/// <summary>`
|  | `167` |  | `/// Read clear text data from the input stream.`
|  | `168` |  | `/// </summary>`
|  | `169` |  | `/// <param name="outBuffer">The buffer to add data to.</param>`
|  | `170` |  | `/// <param name="offset">The offset to start adding data at.</param>`
|  | `171` |  | `/// <param name="length">The number of bytes to read.</param>`
|  | `172` |  | `/// <returns>Returns the number of bytes actually read.</returns>`
|  | `173` |  | `public int ReadClearTextBuffer(byte[] outBuffer, int offset, int length)`
|  | `174` |  | `{`
| 27 | `175` |  | `if (length < 0) {`
| 0 | `176` |  | `throw new ArgumentOutOfRangeException(nameof(length));`
|  | `177` |  | `}`
|  | `178` |  | ``
| 27 | `179` |  | `int currentOffset = offset;`
| 27 | `180` |  | `int currentLength = length;`
|  | `181` |  | ``
| 78 | `182` |  | `while (currentLength > 0) {`
| 51 | `183` |  | `if (available <= 0) {`
| 24 | `184` |  | `Fill();`
| 24 | `185` |  | `if (available <= 0) {`
| 0 | `186` |  | `return 0;`
|  | `187` |  | `}`
|  | `188` |  | `}`
|  | `189` |  | ``
| 51 | `190` |  | `int toCopy = Math.Min(currentLength, available);`
| 51 | `191` |  | `Array.Copy(clearText, clearTextLength - (int)available, outBuffer, currentOffset, toCopy);`
| 51 | `192` |  | `currentOffset += toCopy;`
| 51 | `193` |  | `currentLength -= toCopy;`
| 51 | `194` |  | `available -= toCopy;`
|  | `195` |  | `}`
| 27 | `196` |  | `return length;`
|  | `197` |  | `}`
|  | `198` |  | ``
|  | `199` |  | `/// <summary>`
|  | `200` |  | `/// Read a <see cref="byte"/> from the input stream.`
|  | `201` |  | `/// </summary>`
|  | `202` |  | `/// <returns>Returns the byte read.</returns>`
|  | `203` |  | `public int ReadLeByte()`
|  | `204` |  | `{`
| 2574 | `205` |  | `if (available <= 0) {`
| 57 | `206` |  | `Fill();`
| 57 | `207` |  | `if (available <= 0) {`
| 0 | `208` |  | `throw new ZipException("EOF in header");`
|  | `209` |  | `}`
|  | `210` |  | `}`
| 2574 | `211` |  | `byte result = rawData[rawLength - available];`
| 2574 | `212` |  | `available -= 1;`
| 2574 | `213` |  | `return result;`
|  | `214` |  | `}`
|  | `215` |  | ``
|  | `216` |  | `/// <summary>`
|  | `217` |  | `/// Read an <see cref="short"/> in little endian byte order.`
|  | `218` |  | `/// </summary>`
|  | `219` |  | `/// <returns>The short value read case to an int.</returns>`
|  | `220` |  | `public int ReadLeShort()`
|  | `221` |  | `{`
| 1287 | `222` |  | `return ReadLeByte() | (ReadLeByte() << 8);`
|  | `223` |  | `}`
|  | `224` |  | ``
|  | `225` |  | `/// <summary>`
|  | `226` |  | `/// Read an <see cref="int"/> in little endian byte order.`
|  | `227` |  | `/// </summary>`
|  | `228` |  | `/// <returns>The int value read.</returns>`
|  | `229` |  | `public int ReadLeInt()`
|  | `230` |  | `{`
| 441 | `231` |  | `return ReadLeShort() | (ReadLeShort() << 16);`
|  | `232` |  | `}`
|  | `233` |  | ``
|  | `234` |  | `/// <summary>`
|  | `235` |  | `/// Read a <see cref="long"/> in little endian byte order.`
|  | `236` |  | `/// </summary>`
|  | `237` |  | `/// <returns>The long value read.</returns>`
|  | `238` |  | `public long ReadLeLong()`
|  | `239` |  | `{`
| 10 | `240` |  | `return (uint)ReadLeInt() | ((long)ReadLeInt() << 32);`
|  | `241` |  | `}`
|  | `242` |  | ``
|  | `243` |  | `/// <summary>`
|  | `244` |  | `/// Get/set the <see cref="ICryptoTransform"/> to apply to any data.`
|  | `245` |  | `/// </summary>`
|  | `246` |  | `/// <remarks>Set this value to null to have no transform applied.</remarks>`
|  | `247` |  | `public ICryptoTransform CryptoTransform {`
|  | `248` |  | `set {`
| 102 | `249` |  | `cryptoTransform = value;`
| 102 | `250` |  | `if (cryptoTransform != null) {`
| 24 | `251` |  | `if (rawData == clearText) {`
| 24 | `252` |  | `if (internalClearText == null) {`
| 23 | `253` |  | `internalClearText = new byte[rawData.Length];`
|  | `254` |  | `}`
| 24 | `255` |  | `clearText = internalClearText;`
|  | `256` |  | `}`
| 24 | `257` |  | `clearTextLength = rawLength;`
| 24 | `258` |  | `if (available > 0) {`
| 24 | `259` |  | `cryptoTransform.TransformBlock(rawData, rawLength - available, available, clearText, rawLength - available);`
|  | `260` |  | `}`
| 24 | `261` |  | `} else {`
| 78 | `262` |  | `clearText = rawData;`
| 78 | `263` |  | `clearTextLength = rawLength;`
|  | `264` |  | `}`
| 78 | `265` |  | `}`
|  | `266` |  | `}`
|  | `267` |  | ``
|  | `268` |  | `#region Instance Fields`
|  | `269` |  | `int rawLength;`
|  | `270` |  | `byte[] rawData;`
|  | `271` |  | ``
|  | `272` |  | `int clearTextLength;`
|  | `273` |  | `byte[] clearText;`
|  | `274` |  | `byte[] internalClearText;`
|  | `275` |  | ``
|  | `276` |  | `int available;`
|  | `277` |  | ``
|  | `278` |  | `ICryptoTransform cryptoTransform;`
|  | `279` |  | `Stream inputStream;`
|  | `280` |  | `#endregion`
|  | `281` |  | `}`
|  | `282` |  | ``
|  | `283` |  | `/// <summary>`
|  | `284` |  | `/// This filter stream is used to decompress data compressed using the "deflate"`
|  | `285` |  | `/// format. The "deflate" format is described in RFC 1951.`
|  | `286` |  | `///`
|  | `287` |  | `/// This stream may form the basis for other decompression filters, such`
|  | `288` |  | `/// as the <see cref="ICSharpCode.SharpZipLib.GZip.GZipInputStream">GZipInputStream</see>.`
|  | `289` |  | `///`
|  | `290` |  | `/// Author of the original java version : John Leuner.`
|  | `291` |  | `/// </summary>`
|  | `292` |  | `public class InflaterInputStream : Stream`
|  | `293` |  | `{`
|  | `294` |  | `#region Constructors`
|  | `295` |  | `/// <summary>`
|  | `296` |  | `/// Create an InflaterInputStream with the default decompressor`
|  | `297` |  | `/// and a default buffer size of 4KB.`
|  | `298` |  | `/// </summary>`
|  | `299` |  | `/// <param name = "baseInputStream">`
|  | `300` |  | `/// The InputStream to read bytes from`
|  | `301` |  | `/// </param>`
|  | `302` |  | `public InflaterInputStream(Stream baseInputStream)`
|  | `303` |  | `: this(baseInputStream, new Inflater(), 4096)`
|  | `304` |  | `{`
|  | `305` |  | `}`
|  | `306` |  | ``
|  | `307` |  | `/// <summary>`
|  | `308` |  | `/// Create an InflaterInputStream with the specified decompressor`
|  | `309` |  | `/// and a default buffer size of 4KB.`
|  | `310` |  | `/// </summary>`
|  | `311` |  | `/// <param name = "baseInputStream">`
|  | `312` |  | `/// The source of input data`
|  | `313` |  | `/// </param>`
|  | `314` |  | `/// <param name = "inf">`
|  | `315` |  | `/// The decompressor used to decompress data read from baseInputStream`
|  | `316` |  | `/// </param>`
|  | `317` |  | `public InflaterInputStream(Stream baseInputStream, Inflater inf)`
|  | `318` |  | `: this(baseInputStream, inf, 4096)`
|  | `319` |  | `{`
|  | `320` |  | `}`
|  | `321` |  | ``
|  | `322` |  | `/// <summary>`
|  | `323` |  | `/// Create an InflaterInputStream with the specified decompressor`
|  | `324` |  | `/// and the specified buffer size.`
|  | `325` |  | `/// </summary>`
|  | `326` |  | `/// <param name = "baseInputStream">`
|  | `327` |  | `/// The InputStream to read bytes from`
|  | `328` |  | `/// </param>`
|  | `329` |  | `/// <param name = "inflater">`
|  | `330` |  | `/// The decompressor to use`
|  | `331` |  | `/// </param>`
|  | `332` |  | `/// <param name = "bufferSize">`
|  | `333` |  | `/// Size of the buffer to use`
|  | `334` |  | `/// </param>`
|  | `335` |  | `public InflaterInputStream(Stream baseInputStream, Inflater inflater, int bufferSize)`
|  | `336` |  | `{`
|  | `337` |  | `if (baseInputStream == null) {`
|  | `338` |  | `throw new ArgumentNullException(nameof(baseInputStream));`
|  | `339` |  | `}`
|  | `340` |  | ``
|  | `341` |  | `if (inflater == null) {`
|  | `342` |  | `throw new ArgumentNullException(nameof(inflater));`
|  | `343` |  | `}`
|  | `344` |  | ``
|  | `345` |  | `if (bufferSize <= 0) {`
|  | `346` |  | `throw new ArgumentOutOfRangeException(nameof(bufferSize));`
|  | `347` |  | `}`
|  | `348` |  | ``
|  | `349` |  | `this.baseInputStream = baseInputStream;`
|  | `350` |  | `this.inf = inflater;`
|  | `351` |  | ``
|  | `352` |  | `inputBuffer = new InflaterInputBuffer(baseInputStream, bufferSize);`
|  | `353` |  | `}`
|  | `354` |  | ``
|  | `355` |  | `#endregion`
|  | `356` |  | ``
|  | `357` |  | `/// <summary>`
|  | `358` |  | `/// Get/set flag indicating ownership of underlying stream.`
|  | `359` |  | `/// When the flag is true <see cref="Close"/> will close the underlying stream also.`
|  | `360` |  | `/// </summary>`
|  | `361` |  | `/// <remarks>`
|  | `362` |  | `/// The default value is true.`
|  | `363` |  | `/// </remarks>`
|  | `364` |  | `public bool IsStreamOwner {`
|  | `365` |  | `get { return isStreamOwner; }`
|  | `366` |  | `set { isStreamOwner = value; }`
|  | `367` |  | `}`
|  | `368` |  | ``
|  | `369` |  | `/// <summary>`
|  | `370` |  | `/// Skip specified number of bytes of uncompressed data`
|  | `371` |  | `/// </summary>`
|  | `372` |  | `/// <param name ="count">`
|  | `373` |  | `/// Number of bytes to skip`
|  | `374` |  | `/// </param>`
|  | `375` |  | `/// <returns>`
|  | `376` |  | `/// The number of bytes skipped, zero if the end of`
|  | `377` |  | `/// stream has been reached`
|  | `378` |  | `/// </returns>`
|  | `379` |  | `/// <exception cref="ArgumentOutOfRangeException">`
|  | `380` |  | `/// <paramref name="count">The number of bytes</paramref> to skip is less than or equal to zero.`
|  | `381` |  | `/// </exception>`
|  | `382` |  | `public long Skip(long count)`
|  | `383` |  | `{`
|  | `384` |  | `if (count <= 0) {`
|  | `385` |  | `throw new ArgumentOutOfRangeException(nameof(count));`
|  | `386` |  | `}`
|  | `387` |  | ``
|  | `388` |  | `// v0.80 Skip by seeking if underlying stream supports it...`
|  | `389` |  | `if (baseInputStream.CanSeek) {`
|  | `390` |  | `baseInputStream.Seek(count, SeekOrigin.Current);`
|  | `391` |  | `return count;`
|  | `392` |  | `} else {`
|  | `393` |  | `int length = 2048;`
|  | `394` |  | `if (count < length) {`
|  | `395` |  | `length = (int)count;`
|  | `396` |  | `}`
|  | `397` |  | ``
|  | `398` |  | `byte[] tmp = new byte[length];`
|  | `399` |  | `int readCount = 1;`
|  | `400` |  | `long toSkip = count;`
|  | `401` |  | ``
|  | `402` |  | `while ((toSkip > 0) && (readCount > 0)) {`
|  | `403` |  | `if (toSkip < length) {`
|  | `404` |  | `length = (int)toSkip;`
|  | `405` |  | `}`
|  | `406` |  | ``
|  | `407` |  | `readCount = baseInputStream.Read(tmp, 0, length);`
|  | `408` |  | `toSkip -= readCount;`
|  | `409` |  | `}`
|  | `410` |  | ``
|  | `411` |  | `return count - toSkip;`
|  | `412` |  | `}`
|  | `413` |  | `}`
|  | `414` |  | ``
|  | `415` |  | `/// <summary>`
|  | `416` |  | `/// Clear any cryptographic state.`
|  | `417` |  | `/// </summary>`
|  | `418` |  | `protected void StopDecrypting()`
|  | `419` |  | `{`
|  | `420` |  | `inputBuffer.CryptoTransform = null;`
|  | `421` |  | `}`
|  | `422` |  | ``
|  | `423` |  | `/// <summary>`
|  | `424` |  | `/// Returns 0 once the end of the stream (EOF) has been reached.`
|  | `425` |  | `/// Otherwise returns 1.`
|  | `426` |  | `/// </summary>`
|  | `427` |  | `public virtual int Available {`
|  | `428` |  | `get {`
|  | `429` |  | `return inf.IsFinished ? 0 : 1;`
|  | `430` |  | `}`
|  | `431` |  | `}`
|  | `432` |  | ``
|  | `433` |  | `/// <summary>`
|  | `434` |  | `/// Fills the buffer with more data to decompress.`
|  | `435` |  | `/// </summary>`
|  | `436` |  | `/// <exception cref="SharpZipBaseException">`
|  | `437` |  | `/// Stream ends early`
|  | `438` |  | `/// </exception>`
|  | `439` |  | `protected void Fill()`
|  | `440` |  | `{`
|  | `441` |  | `// Protect against redundant calls`
|  | `442` |  | `if (inputBuffer.Available <= 0) {`
|  | `443` |  | `inputBuffer.Fill();`
|  | `444` |  | `if (inputBuffer.Available <= 0) {`
|  | `445` |  | `throw new SharpZipBaseException("Unexpected EOF");`
|  | `446` |  | `}`
|  | `447` |  | `}`
|  | `448` |  | `inputBuffer.SetInflaterInput(inf);`
|  | `449` |  | `}`
|  | `450` |  | ``
|  | `451` |  | `#region Stream Overrides`
|  | `452` |  | `/// <summary>`
|  | `453` |  | `/// Gets a value indicating whether the current stream supports reading`
|  | `454` |  | `/// </summary>`
|  | `455` |  | `public override bool CanRead {`
|  | `456` |  | `get {`
|  | `457` |  | `return baseInputStream.CanRead;`
|  | `458` |  | `}`
|  | `459` |  | `}`
|  | `460` |  | ``
|  | `461` |  | `/// <summary>`
|  | `462` |  | `/// Gets a value of false indicating seeking is not supported for this stream.`
|  | `463` |  | `/// </summary>`
|  | `464` |  | `public override bool CanSeek {`
|  | `465` |  | `get {`
|  | `466` |  | `return false;`
|  | `467` |  | `}`
|  | `468` |  | `}`
|  | `469` |  | ``
|  | `470` |  | `/// <summary>`
|  | `471` |  | `/// Gets a value of false indicating that this stream is not writeable.`
|  | `472` |  | `/// </summary>`
|  | `473` |  | `public override bool CanWrite {`
|  | `474` |  | `get {`
|  | `475` |  | `return false;`
|  | `476` |  | `}`
|  | `477` |  | `}`
|  | `478` |  | ``
|  | `479` |  | `/// <summary>`
|  | `480` |  | `/// A value representing the length of the stream in bytes.`
|  | `481` |  | `/// </summary>`
|  | `482` |  | `public override long Length {`
|  | `483` |  | `get {`
|  | `484` |  | `return inputBuffer.RawLength;`
|  | `485` |  | `}`
|  | `486` |  | `}`
|  | `487` |  | ``
|  | `488` |  | `/// <summary>`
|  | `489` |  | `/// The current position within the stream.`
|  | `490` |  | `/// Throws a NotSupportedException when attempting to set the position`
|  | `491` |  | `/// </summary>`
|  | `492` |  | `/// <exception cref="NotSupportedException">Attempting to set the position</exception>`
|  | `493` |  | `public override long Position {`
|  | `494` |  | `get {`
|  | `495` |  | `return baseInputStream.Position;`
|  | `496` |  | `}`
|  | `497` |  | `set {`
|  | `498` |  | `throw new NotSupportedException("InflaterInputStream Position not supported");`
|  | `499` |  | `}`
|  | `500` |  | `}`
|  | `501` |  | ``
|  | `502` |  | `/// <summary>`
|  | `503` |  | `/// Flushes the baseInputStream`
|  | `504` |  | `/// </summary>`
|  | `505` |  | `public override void Flush()`
|  | `506` |  | `{`
|  | `507` |  | `baseInputStream.Flush();`
|  | `508` |  | `}`
|  | `509` |  | ``
|  | `510` |  | `/// <summary>`
|  | `511` |  | `/// Sets the position within the current stream`
|  | `512` |  | `/// Always throws a NotSupportedException`
|  | `513` |  | `/// </summary>`
|  | `514` |  | `/// <param name="offset">The relative offset to seek to.</param>`
|  | `515` |  | `/// <param name="origin">The <see cref="SeekOrigin"/> defining where to seek from.</param>`
|  | `516` |  | `/// <returns>The new position in the stream.</returns>`
|  | `517` |  | `/// <exception cref="NotSupportedException">Any access</exception>`
|  | `518` |  | `public override long Seek(long offset, SeekOrigin origin)`
|  | `519` |  | `{`
|  | `520` |  | `throw new NotSupportedException("Seek not supported");`
|  | `521` |  | `}`
|  | `522` |  | ``
|  | `523` |  | `/// <summary>`
|  | `524` |  | `/// Set the length of the current stream`
|  | `525` |  | `/// Always throws a NotSupportedException`
|  | `526` |  | `/// </summary>`
|  | `527` |  | `/// <param name="value">The new length value for the stream.</param>`
|  | `528` |  | `/// <exception cref="NotSupportedException">Any access</exception>`
|  | `529` |  | `public override void SetLength(long value)`
|  | `530` |  | `{`
|  | `531` |  | `throw new NotSupportedException("InflaterInputStream SetLength not supported");`
|  | `532` |  | `}`
|  | `533` |  | ``
|  | `534` |  | `/// <summary>`
|  | `535` |  | `/// Writes a sequence of bytes to stream and advances the current position`
|  | `536` |  | `/// This method always throws a NotSupportedException`
|  | `537` |  | `/// </summary>`
|  | `538` |  | `/// <param name="buffer">Thew buffer containing data to write.</param>`
|  | `539` |  | `/// <param name="offset">The offset of the first byte to write.</param>`
|  | `540` |  | `/// <param name="count">The number of bytes to write.</param>`
|  | `541` |  | `/// <exception cref="NotSupportedException">Any access</exception>`
|  | `542` |  | `public override void Write(byte[] buffer, int offset, int count)`
|  | `543` |  | `{`
|  | `544` |  | `throw new NotSupportedException("InflaterInputStream Write not supported");`
|  | `545` |  | `}`
|  | `546` |  | ``
|  | `547` |  | `/// <summary>`
|  | `548` |  | `/// Writes one byte to the current stream and advances the current position`
|  | `549` |  | `/// Always throws a NotSupportedException`
|  | `550` |  | `/// </summary>`
|  | `551` |  | `/// <param name="value">The byte to write.</param>`
|  | `552` |  | `/// <exception cref="NotSupportedException">Any access</exception>`
|  | `553` |  | `public override void WriteByte(byte value)`
|  | `554` |  | `{`
|  | `555` |  | `throw new NotSupportedException("InflaterInputStream WriteByte not supported");`
|  | `556` |  | `}`
|  | `557` |  | ``
|  | `558` |  | `/// <summary>`
|  | `559` |  | `/// Entry point to begin an asynchronous write. Always throws a NotSupportedException.`
|  | `560` |  | `/// </summary>`
|  | `561` |  | `/// <param name="buffer">The buffer to write data from</param>`
|  | `562` |  | `/// <param name="offset">Offset of first byte to write</param>`
|  | `563` |  | `/// <param name="count">The maximum number of bytes to write</param>`
|  | `564` |  | `/// <param name="callback">The method to be called when the asynchronous write operation is completed</param>`
|  | `565` |  | `/// <param name="state">A user-provided object that distinguishes this particular asynchronous write request from ot`
|  | `566` |  | `/// <returns>An <see cref="System.IAsyncResult">IAsyncResult</see> that references the asynchronous write</returns>`
|  | `567` |  | `/// <exception cref="NotSupportedException">Any access</exception>`
|  | `568` |  | `public override IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, object state)`
|  | `569` |  | `{`
|  | `570` |  | `throw new NotSupportedException("InflaterInputStream BeginWrite not supported");`
|  | `571` |  | `}`
|  | `572` |  | ``
|  | `573` |  | `/// <summary>`
|  | `574` |  | `/// Closes the input stream. When <see cref="IsStreamOwner"></see>`
|  | `575` |  | `/// is true the underlying stream is also closed.`
|  | `576` |  | `/// </summary>`
|  | `577` |  | `public override void Close()`
|  | `578` |  | `{`
|  | `579` |  | `if (!isClosed) {`
|  | `580` |  | `isClosed = true;`
|  | `581` |  | `if (isStreamOwner) {`
|  | `582` |  | `baseInputStream.Close();`
|  | `583` |  | `}`
|  | `584` |  | `}`
|  | `585` |  | `}`
|  | `586` |  | ``
|  | `587` |  | `/// <summary>`
|  | `588` |  | `/// Reads decompressed data into the provided buffer byte array`
|  | `589` |  | `/// </summary>`
|  | `590` |  | `/// <param name ="buffer">`
|  | `591` |  | `/// The array to read and decompress data into`
|  | `592` |  | `/// </param>`
|  | `593` |  | `/// <param name ="offset">`
|  | `594` |  | `/// The offset indicating where the data should be placed`
|  | `595` |  | `/// </param>`
|  | `596` |  | `/// <param name ="count">`
|  | `597` |  | `/// The number of bytes to decompress`
|  | `598` |  | `/// </param>`
|  | `599` |  | `/// <returns>The number of bytes read. Zero signals the end of stream</returns>`
|  | `600` |  | `/// <exception cref="SharpZipBaseException">`
|  | `601` |  | `/// Inflater needs a dictionary`
|  | `602` |  | `/// </exception>`
|  | `603` |  | `public override int Read(byte[] buffer, int offset, int count)`
|  | `604` |  | `{`
|  | `605` |  | `if (inf.IsNeedingDictionary) {`
|  | `606` |  | `throw new SharpZipBaseException("Need a dictionary");`
|  | `607` |  | `}`
|  | `608` |  | ``
|  | `609` |  | `int remainingBytes = count;`
|  | `610` |  | `while (true) {`
|  | `611` |  | `int bytesRead = inf.Inflate(buffer, offset, remainingBytes);`
|  | `612` |  | `offset += bytesRead;`
|  | `613` |  | `remainingBytes -= bytesRead;`
|  | `614` |  | ``
|  | `615` |  | `if (remainingBytes == 0 || inf.IsFinished) {`
|  | `616` |  | `break;`
|  | `617` |  | `}`
|  | `618` |  | ``
|  | `619` |  | `if (inf.IsNeedingInput) {`
|  | `620` |  | `Fill();`
|  | `621` |  | `} else if (bytesRead == 0) {`
|  | `622` |  | `throw new ZipException("Dont know what to do");`
|  | `623` |  | `}`
|  | `624` |  | `}`
|  | `625` |  | `return count - remainingBytes;`
|  | `626` |  | `}`
|  | `627` |  | `#endregion`
|  | `628` |  | ``
|  | `629` |  | `#region Instance Fields`
|  | `630` |  | `/// <summary>`
|  | `631` |  | `/// Decompressor for this stream`
|  | `632` |  | `/// </summary>`
|  | `633` |  | `protected Inflater inf;`
|  | `634` |  | ``
|  | `635` |  | `/// <summary>`
|  | `636` |  | `/// <see cref="InflaterInputBuffer">Input buffer</see> for this stream.`
|  | `637` |  | `/// </summary>`
|  | `638` |  | `protected InflaterInputBuffer inputBuffer;`
|  | `639` |  | ``
|  | `640` |  | `/// <summary>`
|  | `641` |  | `/// Base stream the inflater reads from.`
|  | `642` |  | `/// </summary>`
|  | `643` |  | `private Stream baseInputStream;`
|  | `644` |  | ``
|  | `645` |  | `/// <summary>`
|  | `646` |  | `/// The compressed size`
|  | `647` |  | `/// </summary>`
|  | `648` |  | `protected long csize;`
|  | `649` |  | ``
|  | `650` |  | `/// <summary>`
|  | `651` |  | `/// Flag indicating wether this instance has been closed or not.`
|  | `652` |  | `/// </summary>`
|  | `653` |  | `bool isClosed;`
|  | `654` |  | ``
|  | `655` |  | `/// <summary>`
|  | `656` |  | `/// Flag indicating wether this instance is designated the stream owner.`
|  | `657` |  | `/// When closing if this flag is true the underlying stream is closed.`
|  | `658` |  | `/// </summary>`
|  | `659` |  | `bool isStreamOwner = true;`
|  | `660` |  | `#endregion`
|  | `661` |  | `}`
|  | `662` |  | `}`