/// <summary>
/// Construct TarOutputStream with user specified block factor
/// </summary>
/// <param name="outputStream">stream to write to</param>
/// <param name="blockFactor">blocking factor</param>
public TarOutputStream(Stream outputStream, int blockFactor)
{
if (outputStream == null) {
throw new ArgumentNullException(nameof(outputStream));
}
this.outputStream = outputStream;
buffer = TarBuffer.CreateOutputTarBuffer(outputStream, blockFactor);
assemblyBuffer = new byte[TarBuffer.BlockSize];
blockBuffer = new byte[TarBuffer.BlockSize];
}
/// <summary>
/// Construct TarBuffer for writing Tar output to streams.
/// </summary>
/// <param name="outputStream">Output stream to write to.</param>
/// <param name="blockFactor">Blocking factor to apply</param>
/// <returns>A new <see cref="TarBuffer"/> suitable for output.</returns>
public static TarBuffer CreateOutputTarBuffer(Stream outputStream, int blockFactor)
{
if (outputStream == null)
{
throw new ArgumentNullException("outputStream");
}
if (blockFactor <= 0)
{
#if NETCF_1_0
throw new ArgumentOutOfRangeException("blockFactor");
#else
throw new ArgumentOutOfRangeException("blockFactor", "Factor cannot be negative");
#endif
}
TarBuffer tarBuffer = new TarBuffer();
tarBuffer.inputStream = null;
tarBuffer.outputStream = outputStream;
tarBuffer.Initialize(blockFactor);
return(tarBuffer);
}
public TarEntry GetNextEntry()
{
if (this.hasHitEOF)
{
return(null);
}
if (this.currentEntry != null)
{
this.SkipToNextEntry();
}
byte[] array = this.buffer.ReadBlock();
if (array == null)
{
this.hasHitEOF = true;
}
else if (TarBuffer.IsEndOfArchiveBlock(array))
{
this.hasHitEOF = true;
}
if (this.hasHitEOF)
{
this.currentEntry = null;
}
else
{
try
{
TarHeader tarHeader = new TarHeader();
tarHeader.ParseBuffer(array);
if (!tarHeader.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
this.entryOffset = 0L;
this.entrySize = tarHeader.Size;
StringBuilder stringBuilder = null;
if (tarHeader.TypeFlag == 76)
{
byte[] array2 = new byte[512];
long num = this.entrySize;
stringBuilder = new StringBuilder();
while (num > 0L)
{
int num2 = this.Read(array2, 0, (num > (long)array2.Length) ? array2.Length : ((int)num));
if (num2 == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
stringBuilder.Append(TarHeader.ParseName(array2, 0, num2).ToString());
num -= (long)num2;
}
this.SkipToNextEntry();
array = this.buffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 103)
{
this.SkipToNextEntry();
array = this.buffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 120)
{
this.SkipToNextEntry();
array = this.buffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 86)
{
this.SkipToNextEntry();
array = this.buffer.ReadBlock();
}
else if (tarHeader.TypeFlag != 48 && tarHeader.TypeFlag != 0 && tarHeader.TypeFlag != 53)
{
this.SkipToNextEntry();
array = this.buffer.ReadBlock();
}
if (this.entryFactory == null)
{
this.currentEntry = new TarEntry(array);
if (stringBuilder != null)
{
this.currentEntry.Name = stringBuilder.ToString();
}
}
else
{
this.currentEntry = this.entryFactory.CreateEntry(array);
}
this.entryOffset = 0L;
this.entrySize = this.currentEntry.Size;
}
catch (InvalidHeaderException ex)
{
this.entrySize = 0L;
this.entryOffset = 0L;
this.currentEntry = null;
string message = string.Format("Bad header in record {0} block {1} {2}", this.buffer.CurrentRecord, this.buffer.CurrentBlock, ex.Message);
throw new InvalidHeaderException(message);
}
}
return(this.currentEntry);
}
public TarOutputStream(Stream outputStream, int blockFactor)
{
this.outputStream = outputStream;
this.buffer = TarBuffer.CreateOutputTarBuffer(outputStream, blockFactor);
this.debug = false;
this.assemLen = 0;
this.assemBuf = new byte[TarBuffer.BlockSize];
this.blockBuf = new byte[TarBuffer.BlockSize];
}
/// <summary>
/// Construct a TarInputStream with user specified block factor
/// </summary>
/// <param name="inputStream">stream to source data from</param>
/// <param name="blockFactor">block factor to apply to archive</param>
public TarInputStream(Stream inputStream, int blockFactor)
{
this.inputStream = inputStream;
tarBuffer = TarBuffer.CreateInputTarBuffer(inputStream, blockFactor);
}
/// <summary>
/// Construct TarBuffer for writing Tar output to streams.
/// </summary>
/// <param name="outputStream">Output stream to write to.</param>
/// <param name="blockFactor">Blocking factor to apply</param>
/// <returns>A new <see cref="TarBuffer"/> suitable for output.</returns>
public static TarBuffer CreateOutputTarBuffer(Stream outputStream, int blockFactor)
{
if ( outputStream == null )
{
throw new ArgumentNullException("outputStream");
}
if ( blockFactor <= 0 )
{
#if NETCF_1_0
throw new ArgumentOutOfRangeException("blockFactor");
#else
throw new ArgumentOutOfRangeException("blockFactor", "Factor cannot be negative");
#endif
}
TarBuffer tarBuffer = new TarBuffer();
tarBuffer.inputStream = null;
tarBuffer.outputStream = outputStream;
tarBuffer.Initialize(blockFactor);
return tarBuffer;
}
public TarEntry GetNextEntry()
{
if (hasHitEOF)
{
return(null);
}
if (currentEntry != null)
{
SkipToNextEntry();
}
byte[] array = tarBuffer.ReadBlock();
if (array == null)
{
hasHitEOF = true;
}
else
{
hasHitEOF |= TarBuffer.IsEndOfArchiveBlock(array);
}
if (!hasHitEOF)
{
try
{
TarHeader tarHeader = new TarHeader();
tarHeader.ParseBuffer(array);
if (!tarHeader.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
entryOffset = 0L;
entrySize = tarHeader.Size;
StringBuilder stringBuilder = null;
if (tarHeader.TypeFlag == 76)
{
byte[] array2 = new byte[512];
long num = entrySize;
stringBuilder = new StringBuilder();
while (num > 0)
{
int num2 = Read(array2, 0, (int)((num > array2.Length) ? array2.Length : num));
if (num2 == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
stringBuilder.Append(TarHeader.ParseName(array2, 0, num2).ToString());
num -= num2;
}
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 103)
{
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 120)
{
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 86)
{
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
else if (tarHeader.TypeFlag != 48 && tarHeader.TypeFlag != 0 && tarHeader.TypeFlag != 49 && tarHeader.TypeFlag != 50 && tarHeader.TypeFlag != 53)
{
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
if (entryFactory == null)
{
currentEntry = new TarEntry(array);
if (stringBuilder != null)
{
currentEntry.Name = stringBuilder.ToString();
}
}
else
{
currentEntry = entryFactory.CreateEntry(array);
}
entryOffset = 0L;
entrySize = currentEntry.Size;
}
catch (InvalidHeaderException ex)
{
entrySize = 0L;
entryOffset = 0L;
currentEntry = null;
throw new InvalidHeaderException($"Bad header in record {tarBuffer.CurrentRecord} block {tarBuffer.CurrentBlock} {ex.Message}");
}
}
else
{
currentEntry = null;
}
return(currentEntry);
}
public TarEntry GetNextEntry()
{
if (this.hasHitEOF)
{
return(null);
}
if (this.currentEntry != null)
{
SkipToNextEntry();
}
byte[] headerBuf = this.buffer.ReadBlock();
if (headerBuf == null)
{
this.hasHitEOF = true;
}
else if (TarBuffer.IsEndOfArchiveBlock(headerBuf))
{
this.hasHitEOF = true;
}
if (this.hasHitEOF)
{
this.currentEntry = null;
}
else
{
try {
TarHeader header = new TarHeader();
header.ParseBuffer(headerBuf);
if (!header.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
this.entryOffset = 0;
this.entrySize = header.Size;
StringBuilder longName = null;
if (header.TypeFlag == TarHeader.LF_GNU_LONGNAME)
{
byte[] nameBuffer = new byte[TarBuffer.BlockSize];
long numToRead = this.entrySize;
longName = new StringBuilder();
while (numToRead > 0)
{
int numRead = this.Read(nameBuffer, 0, (numToRead > nameBuffer.Length ? nameBuffer.Length : (int)numToRead));
if (numRead == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
longName.Append(TarHeader.ParseName(nameBuffer, 0, numRead).ToString());
numToRead -= numRead;
}
SkipToNextEntry();
headerBuf = this.buffer.ReadBlock();
}
else if (header.TypeFlag == TarHeader.LF_GHDR)
{
SkipToNextEntry();
headerBuf = this.buffer.ReadBlock();
}
else if (header.TypeFlag == TarHeader.LF_XHDR)
{
SkipToNextEntry();
headerBuf = this.buffer.ReadBlock();
}
else if (header.TypeFlag == TarHeader.LF_GNU_VOLHDR)
{
SkipToNextEntry();
headerBuf = this.buffer.ReadBlock();
}
else if (header.TypeFlag != TarHeader.LF_NORMAL &&
header.TypeFlag != TarHeader.LF_OLDNORM &&
header.TypeFlag != TarHeader.LF_DIR)
{
SkipToNextEntry();
headerBuf = this.buffer.ReadBlock();
}
if (this.entryFactory == null)
{
this.currentEntry = new TarEntry(headerBuf);
if (longName != null)
{
currentEntry.Name = longName.ToString();
}
}
else
{
this.currentEntry = this.entryFactory.CreateEntry(headerBuf);
}
this.entryOffset = 0;
this.entrySize = this.currentEntry.Size;
} catch (InvalidHeaderException ex) {
this.entrySize = 0;
this.entryOffset = 0;
this.currentEntry = null;
string errorText = string.Format("Bad header in record {0} block {1} {2}",
buffer.CurrentRecord, buffer.CurrentBlock, ex.Message);
throw new InvalidHeaderException(errorText);
}
}
return(this.currentEntry);
}
public TarInputStream(Stream inputStream, int blockFactor)
{
this.inputStream = inputStream;
this.buffer = TarBuffer.CreateInputTarBuffer(inputStream, blockFactor);
this.readBuf = null;
this.debug = false;
this.hasHitEOF = false;
this.eFactory = null;
}
/// <summary>
/// Construct TarBuffer for writing Tar output to streams.
/// </summary>
/// <param name="outputStream">Output stream to write to.</param>
/// <param name="blockFactor">Blocking factor to apply</param>
/// <returns>A new <see cref="TarBuffer"/> suitable for output.</returns>
public static TarBuffer CreateOutputTarBuffer(Stream outputStream, int blockFactor)
{
if ( outputStream == null )
{
throw new ArgumentNullException("outputStream");
}
if ( blockFactor <= 0 )
{
throw new ArgumentOutOfRangeException("blockFactor");
}
TarBuffer tarBuffer = new TarBuffer();
tarBuffer.inputStream = null;
tarBuffer.outputStream = outputStream;
tarBuffer.Initialize(blockFactor);
return tarBuffer;
}
/// <summary>
/// Construct TarBuffer for writing Tar output to streams.
/// </summary>
/// <param name="outputStream">Output stream to write to.</param>
/// <param name="blockFactor">Blocking factor to apply</param>
/// <returns>A new <see cref="TarBuffer"/> suitable for output.</returns>
public static TarBuffer CreateOutputTarBuffer(Stream outputStream, int blockFactor)
{
if (outputStream == null) {
throw new ArgumentNullException(nameof(outputStream));
}
if (blockFactor <= 0) {
throw new ArgumentOutOfRangeException(nameof(blockFactor), "Factor cannot be negative");
}
var tarBuffer = new TarBuffer();
tarBuffer.inputStream = null;
tarBuffer.outputStream = outputStream;
tarBuffer.Initialize(blockFactor);
return tarBuffer;
}
/// <summary>
/// Construct a TarInputStream with user specified block factor
/// </summary>
/// <param name="inputStream">stream to source data from</param>
/// <param name="blockFactor">block factor to apply to archive</param>
/// <param name="nameEncoding">The <see cref="Encoding"/> used for the Name fields, or null for ASCII only</param>
public TarInputStream(Stream inputStream, int blockFactor, Encoding nameEncoding)
{
this.inputStream = inputStream;
tarBuffer = TarBuffer.CreateInputTarBuffer(inputStream, blockFactor);
encoding = nameEncoding;
}
public TarEntry GetNextEntry()
{
if (this.hasHitEOF)
{
return(null);
}
if (this.currentEntry != null)
{
this.SkipToNextEntry();
}
byte[] block = this.tarBuffer.ReadBlock();
if (block == null)
{
this.hasHitEOF = true;
}
else if (TarBuffer.IsEndOfArchiveBlock(block))
{
this.hasHitEOF = true;
}
if (this.hasHitEOF)
{
this.currentEntry = null;
}
else
{
try
{
TarHeader header = new TarHeader();
header.ParseBuffer(block);
if (!header.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
this.entryOffset = 0L;
this.entrySize = header.Size;
StringBuilder builder = null;
if (header.TypeFlag == 0x4c)
{
byte[] buffer = new byte[0x200];
long entrySize = this.entrySize;
builder = new StringBuilder();
while (entrySize > 0L)
{
int length = this.Read(buffer, 0, (entrySize > buffer.Length) ? buffer.Length : ((int)entrySize));
if (length == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
builder.Append(TarHeader.ParseName(buffer, 0, length).ToString());
entrySize -= length;
}
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 0x67)
{
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 120)
{
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == 0x56)
{
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
else if (((header.TypeFlag != 0x30) && (header.TypeFlag != 0)) && (header.TypeFlag != 0x35))
{
this.SkipToNextEntry();
block = this.tarBuffer.ReadBlock();
}
if (this.entryFactory == null)
{
this.currentEntry = new TarEntry(block);
if (builder != null)
{
this.currentEntry.Name = builder.ToString();
}
}
else
{
this.currentEntry = this.entryFactory.CreateEntry(block);
}
this.entryOffset = 0L;
this.entrySize = this.currentEntry.Size;
}
catch (InvalidHeaderException exception)
{
this.entrySize = 0L;
this.entryOffset = 0L;
this.currentEntry = null;
throw new InvalidHeaderException(string.Format("Bad header in record {0} block {1} {2}", this.tarBuffer.CurrentRecord, this.tarBuffer.CurrentBlock, exception.Message));
}
}
return(this.currentEntry);
}
/// <summary>
/// Get the next entry in this tar archive. This will skip
/// over any remaining data in the current entry, if there
/// is one, and place the input stream at the header of the
/// next entry, and read the header and instantiate a new
/// TarEntry from the header bytes and return that entry.
/// If there are no more entries in the archive, null will
/// be returned to indicate that the end of the archive has
/// been reached.
/// </summary>
/// <returns>
/// The next TarEntry in the archive, or null.
/// </returns>
public TarEntry GetNextEntry()
{
if (hasHitEOF)
{
return(null);
}
if (currentEntry != null)
{
SkipToNextEntry();
}
byte[] headerBuf = tarBuffer.ReadBlock();
if (headerBuf == null)
{
hasHitEOF = true;
}
else if (TarBuffer.IsEndOfArchiveBlock(headerBuf))
{
hasHitEOF = true;
}
if (hasHitEOF)
{
currentEntry = null;
}
else
{
try {
TarHeader header = new TarHeader();
header.ParseBuffer(headerBuf);
if (!header.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
this.entryOffset = 0;
this.entrySize = header.Size;
StringBuilder longName = null;
if (header.TypeFlag == TarHeader.LF_GNU_LONGNAME)
{
byte[] nameBuffer = new byte[TarBuffer.BlockSize];
long numToRead = this.entrySize;
longName = new StringBuilder();
while (numToRead > 0)
{
int numRead = this.Read(nameBuffer, 0, (numToRead > nameBuffer.Length ? nameBuffer.Length : (int)numToRead));
if (numRead == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
longName.Append(TarHeader.ParseName(nameBuffer, 0, numRead).ToString());
numToRead -= numRead;
}
SkipToNextEntry();
headerBuf = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == TarHeader.LF_GHDR) // POSIX global extended header
// Ignore things we dont understand completely for now
{
SkipToNextEntry();
headerBuf = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == TarHeader.LF_XHDR) // POSIX extended header
// Ignore things we dont understand completely for now
{
SkipToNextEntry();
headerBuf = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag == TarHeader.LF_GNU_VOLHDR)
{
// TODO: could show volume name when verbose
SkipToNextEntry();
headerBuf = this.tarBuffer.ReadBlock();
}
else if (header.TypeFlag != TarHeader.LF_NORMAL &&
header.TypeFlag != TarHeader.LF_OLDNORM &&
header.TypeFlag != TarHeader.LF_DIR)
{
// Ignore things we dont understand completely for now
SkipToNextEntry();
headerBuf = tarBuffer.ReadBlock();
}
if (entryFactory == null)
{
currentEntry = new TarEntry(headerBuf);
if (longName != null)
{
currentEntry.Name = longName.ToString();
}
}
else
{
currentEntry = entryFactory.CreateEntry(headerBuf);
}
// Magic was checked here for 'ustar' but there are multiple valid possibilities
// so this is not done anymore.
entryOffset = 0;
// TODO: Review How do we resolve this discrepancy?!
entrySize = this.currentEntry.Size;
} catch (InvalidHeaderException ex) {
entrySize = 0;
entryOffset = 0;
currentEntry = null;
string errorText = string.Format("Bad header in record {0} block {1} {2}",
tarBuffer.CurrentRecord, tarBuffer.CurrentBlock, ex.Message);
throw new InvalidHeaderException(errorText);
}
}
return(currentEntry);
}
/// <summary>
/// Construct TarBuffer for writing Tar output to streams.
/// </summary>
/// <param name="outputStream">Output stream to write to.</param>
/// <param name="blockFactor">Blocking factor to apply</param>
/// <returns>TarBuffer</returns>
public static TarBuffer CreateOutputTarBuffer(Stream outputStream, int blockFactor)
{
TarBuffer tarBuffer = new TarBuffer();
tarBuffer.inputStream = null;
tarBuffer.outputStream = outputStream;
tarBuffer.Initialize(blockFactor);
return tarBuffer;
}
/// <summary>
/// Construct a TarInputStream with user specified block factor
/// </summary>
/// <param name="inputStream">stream to source data from</param>
/// <param name="blockFactor">block factor to apply to archive</param>
public TarInputStream(Stream inputStream, int blockFactor)
{
this.inputStream = inputStream;
tarBuffer = TarBuffer.CreateInputTarBuffer(inputStream, blockFactor);
}
public TarEntry GetNextEntry()
{
//IL_00a6: Unknown result type (might be due to invalid IL or missing references)
//IL_00ac: Expected O, but got Unknown
if (hasHitEOF)
{
return(null);
}
if (currentEntry != null)
{
SkipToNextEntry();
}
byte[] array = tarBuffer.ReadBlock();
if (array == null)
{
hasHitEOF = true;
}
else if (TarBuffer.IsEndOfArchiveBlock(array))
{
hasHitEOF = true;
}
if (hasHitEOF)
{
currentEntry = null;
}
else
{
try
{
TarHeader tarHeader = new TarHeader();
tarHeader.ParseBuffer(array);
if (!tarHeader.IsChecksumValid)
{
throw new TarException("Header checksum is invalid");
}
entryOffset = 0L;
entrySize = tarHeader.Size;
StringBuilder val = null;
if (tarHeader.TypeFlag == 76)
{
byte[] array2 = new byte[512];
long num = entrySize;
val = new StringBuilder();
while (num > 0)
{
int num2 = ((Stream)this).Read(array2, 0, (int)((num > array2.Length) ? array2.Length : num));
if (num2 == -1)
{
throw new InvalidHeaderException("Failed to read long name entry");
}
val.Append(((object)TarHeader.ParseName(array2, 0, num2)).ToString());
num -= num2;
}
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 103)
{
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 120)
{
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
else if (tarHeader.TypeFlag == 86)
{
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
else if (tarHeader.TypeFlag != 48 && tarHeader.TypeFlag != 0 && tarHeader.TypeFlag != 53)
{
SkipToNextEntry();
array = tarBuffer.ReadBlock();
}
if (entryFactory == null)
{
currentEntry = new TarEntry(array);
if (val != null)
{
currentEntry.Name = ((object)val).ToString();
}
}
else
{
currentEntry = entryFactory.CreateEntry(array);
}
entryOffset = 0L;
entrySize = currentEntry.Size;
}
catch (InvalidHeaderException ex)
{
entrySize = 0L;
entryOffset = 0L;
currentEntry = null;
string message = $"Bad header in record {tarBuffer.CurrentRecord} block {tarBuffer.CurrentBlock} {((global::System.Exception)(object)ex).get_Message()}";
throw new InvalidHeaderException(message);
}
}
return(currentEntry);
}
