public static ParseName ( byte header, int offset, int length ) : StringBuilder | ||
header | byte | /// The header buffer from which to parse. /// |
offset | int | /// The offset into the buffer from which to parse. /// |
length | int | /// The number of header bytes to parse. /// |
return | StringBuilder |
/// <summary> /// Parse TarHeader information from a header buffer. /// </summary> /// <param name = "header"> /// The tar entry header buffer to get information from. /// </param> public void ParseBuffer(byte[] header) { if (header == null) { throw new ArgumentNullException("header"); } int offset = 0; name = TarHeader.ParseName(header, offset, TarHeader.NAMELEN).ToString(); offset += TarHeader.NAMELEN; mode = (int)TarHeader.ParseOctal(header, offset, TarHeader.MODELEN); offset += TarHeader.MODELEN; UserId = (int)TarHeader.ParseOctal(header, offset, TarHeader.UIDLEN); offset += TarHeader.UIDLEN; GroupId = (int)TarHeader.ParseOctal(header, offset, TarHeader.GIDLEN); offset += TarHeader.GIDLEN; Size = TarHeader.ParseOctal(header, offset, TarHeader.SIZELEN); offset += TarHeader.SIZELEN; ModTime = GetDateTimeFromCTime(TarHeader.ParseOctal(header, offset, TarHeader.MODTIMELEN)); offset += TarHeader.MODTIMELEN; checksum = (int)TarHeader.ParseOctal(header, offset, TarHeader.CHKSUMLEN); offset += TarHeader.CHKSUMLEN; TypeFlag = header[offset++]; LinkName = TarHeader.ParseName(header, offset, TarHeader.NAMELEN).ToString(); offset += TarHeader.NAMELEN; Magic = TarHeader.ParseName(header, offset, TarHeader.MAGICLEN).ToString(); offset += TarHeader.MAGICLEN; Version = TarHeader.ParseName(header, offset, TarHeader.VERSIONLEN).ToString(); offset += TarHeader.VERSIONLEN; UserName = TarHeader.ParseName(header, offset, TarHeader.UNAMELEN).ToString(); offset += TarHeader.UNAMELEN; GroupName = TarHeader.ParseName(header, offset, TarHeader.GNAMELEN).ToString(); offset += TarHeader.GNAMELEN; DevMajor = (int)TarHeader.ParseOctal(header, offset, TarHeader.DEVLEN); offset += TarHeader.DEVLEN; DevMinor = (int)TarHeader.ParseOctal(header, offset, TarHeader.DEVLEN); // Fields past this point not currently parsed or used... isChecksumValid = Checksum == TarHeader.MakeCheckSum(header); }
/// <summary> /// Parse TarHeader information from a header buffer. /// </summary> /// <param name = "header"> /// The tar entry header buffer to get information from. /// </param> public void ParseBuffer(byte[] header) { int offset = 0; name = TarHeader.ParseName(header, offset, TarHeader.NAMELEN); offset += TarHeader.NAMELEN; mode = (int)TarHeader.ParseOctal(header, offset, TarHeader.MODELEN); offset += TarHeader.MODELEN; userId = (int)TarHeader.ParseOctal(header, offset, TarHeader.UIDLEN); offset += TarHeader.UIDLEN; groupId = (int)TarHeader.ParseOctal(header, offset, TarHeader.GIDLEN); offset += TarHeader.GIDLEN; size = TarHeader.ParseOctal(header, offset, TarHeader.SIZELEN); offset += TarHeader.SIZELEN; modTime = GetDateTimeFromCTime(TarHeader.ParseOctal(header, offset, TarHeader.MODTIMELEN)); offset += TarHeader.MODTIMELEN; checkSum = (int)TarHeader.ParseOctal(header, offset, TarHeader.CHKSUMLEN); offset += TarHeader.CHKSUMLEN; typeFlag = header[offset++]; linkName = TarHeader.ParseName(header, offset, TarHeader.NAMELEN); offset += TarHeader.NAMELEN; magic = TarHeader.ParseName(header, offset, TarHeader.MAGICLEN); offset += TarHeader.MAGICLEN; version = TarHeader.ParseName(header, offset, TarHeader.VERSIONLEN); offset += TarHeader.VERSIONLEN; userName = TarHeader.ParseName(header, offset, TarHeader.UNAMELEN); offset += TarHeader.UNAMELEN; groupName = TarHeader.ParseName(header, offset, TarHeader.GNAMELEN); offset += TarHeader.GNAMELEN; devMajor = (int)TarHeader.ParseOctal(header, offset, TarHeader.DEVLEN); offset += TarHeader.DEVLEN; devMinor = (int)TarHeader.ParseOctal(header, offset, TarHeader.DEVLEN); // Fields past this point not currently parsed or used... }
public void ParseBuffer(byte[] header) { if (header == null) { throw new ArgumentNullException("header"); } int num = 0; this.name = TarHeader.ParseName(header, num, 100).ToString(); num += 100; this.mode = (int)TarHeader.ParseOctal(header, num, 8); num += 8; this.UserId = (int)TarHeader.ParseOctal(header, num, 8); num += 8; this.GroupId = (int)TarHeader.ParseOctal(header, num, 8); num += 8; this.Size = TarHeader.ParseBinaryOrOctal(header, num, 12); num += 12; this.ModTime = TarHeader.GetDateTimeFromCTime(TarHeader.ParseOctal(header, num, 12)); num += 12; this.checksum = (int)TarHeader.ParseOctal(header, num, 8); num += 8; this.TypeFlag = header[num++]; this.LinkName = TarHeader.ParseName(header, num, 100).ToString(); num += 100; this.Magic = TarHeader.ParseName(header, num, 6).ToString(); num += 6; if (this.Magic == "ustar") { this.Version = TarHeader.ParseName(header, num, 2).ToString(); num += 2; this.UserName = TarHeader.ParseName(header, num, 32).ToString(); num += 32; this.GroupName = TarHeader.ParseName(header, num, 32).ToString(); num += 32; this.DevMajor = (int)TarHeader.ParseOctal(header, num, 8); num += 8; this.DevMinor = (int)TarHeader.ParseOctal(header, num, 8); num += 8; string text = TarHeader.ParseName(header, num, 155).ToString(); if (!string.IsNullOrEmpty(text)) { this.Name = text + '/' + this.Name; } } this.isChecksumValid = (this.Checksum == TarHeader.MakeCheckSum(header)); }
/// <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> /// 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 (this.hasHitEOF) { return(null); } if (this.currEntry != null) { SkipToNextEntry(); } byte[] headerBuf = this.buffer.ReadBlock(); if (headerBuf == null) { if (this.debug) { //Console.WriteLine.WriteLine("READ NULL BLOCK"); } this.hasHitEOF = true; } else if (this.buffer.IsEOFBlock(headerBuf)) { if (this.debug) { //Console.WriteLine.WriteLine( "READ EOF BLOCK" ); } this.hasHitEOF = true; } if (this.hasHitEOF) { this.currEntry = null; } else { try { TarHeader header = new TarHeader(); header.ParseBuffer(headerBuf); this.entryOffset = 0; this.entrySize = (int)header.size; StringBuilder longName = null; if (header.typeFlag == TarHeader.LF_GNU_LONGNAME) { Console.WriteLine("TarInputStream: Long name found '" + header.name + "' size = " + header.size); // DEBUG byte[] nameBuffer = new byte[TarBuffer.BlockSize]; int numToRead = this.entrySize; longName = new StringBuilder(); while (numToRead > 0) { int numRead = this.Read(nameBuffer, 0, (numToRead > nameBuffer.Length ? nameBuffer.Length : numToRead)); if (numRead == -1) { throw new InvalidHeaderException("Failed to read long name entry"); } longName.Append(TarHeader.ParseName(nameBuffer, 0, numRead).ToString()); numToRead -= numRead; } Console.WriteLine("TarInputStream: Long name is '" + longName.ToString()); // DEBUG SkipToNextEntry(); headerBuf = this.buffer.ReadBlock(); } else if (header.typeFlag == TarHeader.LF_GHDR) // POSIX global extended header { // Ignore things we dont understand completely for now SkipToNextEntry(); headerBuf = this.buffer.ReadBlock(); } else if (header.typeFlag == TarHeader.LF_XHDR) // POSIX extended header { // Ignore things we dont understand completely for now SkipToNextEntry(); headerBuf = this.buffer.ReadBlock(); } else if (header.typeFlag == TarHeader.LF_GNU_VOLHDR) { // TODO could show volume name when verbose? SkipToNextEntry(); headerBuf = this.buffer.ReadBlock(); } else if (header.typeFlag != TarHeader.LF_NORMAL && header.typeFlag != TarHeader.LF_OLDNORM) { // Ignore things we dont understand completely for now SkipToNextEntry(); headerBuf = this.buffer.ReadBlock(); } if (this.eFactory == null) { this.currEntry = new TarEntry(headerBuf); if (longName != null) { this.currEntry.TarHeader.name.Length = 0; this.currEntry.TarHeader.name.Append(longName.ToString()); } } else { this.currEntry = this.eFactory.CreateEntry(headerBuf); } // TODO -jr- ustar is not the only magic possible by any means // tar, xtar, ... if (!(headerBuf[257] == 'u' && headerBuf[258] == 's' && headerBuf[259] == 't' && headerBuf[260] == 'a' && headerBuf[261] == 'r')) { throw new InvalidHeaderException("header magic is not 'ustar', but '" + headerBuf[257] + headerBuf[258] + headerBuf[259] + headerBuf[260] + headerBuf[261] + "', or (dec) " + ((int)headerBuf[257]) + ", " + ((int)headerBuf[258]) + ", " + ((int)headerBuf[259]) + ", " + ((int)headerBuf[260]) + ", " + ((int)headerBuf[261])); } if (this.debug) { //Console.WriteLine.WriteLine("TarInputStream: SET CURRENTRY '" + this.currEntry.Name + "' size = " + this.currEntry.Size); } this.entryOffset = 0; // TODO REVIEW How do we resolve this discrepancy?! this.entrySize = (int)this.currEntry.Size; } catch (InvalidHeaderException ex) { this.entrySize = 0; this.entryOffset = 0; this.currEntry = null; throw new InvalidHeaderException("bad header in record " + this.buffer.GetCurrentBlockNum() + " block " + this.buffer.GetCurrentBlockNum() + ", " + ex.Message); } } return(this.currEntry); }
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 TarEntry GetNextEntry() { if (this.hasHitEOF) { return(null); } if (this.currentEntry != null) { this.SkipToNextEntry(); } byte[] block = this.buffer.ReadBlock(); if (block == null) { this.hasHitEOF = true; } else if (this.buffer.IsEOFBlock(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.buffer.ReadBlock(); } else if (header.TypeFlag == 0x67) { this.SkipToNextEntry(); block = this.buffer.ReadBlock(); } else if (header.TypeFlag == 120) { this.SkipToNextEntry(); block = this.buffer.ReadBlock(); } else if (header.TypeFlag == 0x56) { this.SkipToNextEntry(); block = this.buffer.ReadBlock(); } else if (((header.TypeFlag != 0x30) && (header.TypeFlag != 0)) && (header.TypeFlag != 0x35)) { this.SkipToNextEntry(); block = this.buffer.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($"Bad header in record {this.buffer.CurrentRecord} block {this.buffer.CurrentBlock} {exception.Message}"); } } return(this.currentEntry); }
public TarEntry GetNextEntry() { if (hasHitEOF) { return(null); } if (currentEntry != null) { SkipToNextEntry(); } byte[] array = tarBuffer.ReadBlock(); if (array == null) { hasHitEOF = true; } else { hasHitEOF |= TarBuffer.IsEndOfArchiveBlock(array); } if (!hasHitEOF) { try { TarHeader tarHeader = new TarHeader(); tarHeader.ParseBuffer(array); if (!tarHeader.IsChecksumValid) { throw new TarException("Header checksum is invalid"); } entryOffset = 0L; entrySize = tarHeader.Size; StringBuilder stringBuilder = null; if (tarHeader.TypeFlag == 76) { byte[] array2 = new byte[512]; long num = entrySize; stringBuilder = new StringBuilder(); while (num > 0) { int num2 = Read(array2, 0, (int)((num > array2.Length) ? array2.Length : num)); if (num2 == -1) { throw new InvalidHeaderException("Failed to read long name entry"); } stringBuilder.Append(TarHeader.ParseName(array2, 0, num2).ToString()); num -= num2; } SkipToNextEntry(); array = tarBuffer.ReadBlock(); } else if (tarHeader.TypeFlag == 103) { SkipToNextEntry(); array = tarBuffer.ReadBlock(); } else if (tarHeader.TypeFlag == 120) { SkipToNextEntry(); array = tarBuffer.ReadBlock(); } else if (tarHeader.TypeFlag == 86) { SkipToNextEntry(); array = tarBuffer.ReadBlock(); } else if (tarHeader.TypeFlag != 48 && tarHeader.TypeFlag != 0 && tarHeader.TypeFlag != 49 && tarHeader.TypeFlag != 50 && tarHeader.TypeFlag != 53) { SkipToNextEntry(); array = tarBuffer.ReadBlock(); } if (entryFactory == null) { currentEntry = new TarEntry(array); if (stringBuilder != null) { currentEntry.Name = stringBuilder.ToString(); } } else { currentEntry = entryFactory.CreateEntry(array); } entryOffset = 0L; entrySize = currentEntry.Size; } catch (InvalidHeaderException ex) { entrySize = 0L; entryOffset = 0L; currentEntry = null; throw new InvalidHeaderException($"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 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); }