/// <summary> /// Construct an entry from an archive's header bytes. File is set /// to null. /// </summary> /// <param name = "headerBuffer"> /// The header bytes from a tar archive entry. /// </param> public TarEntry(byte[] headerBuffer) { header = new TarHeader(); header.ParseBuffer(headerBuffer); }
/// <summary> /// Initialise a default instance of <see cref="TarEntry"/>. /// </summary> private TarEntry() { header = new TarHeader(); }
/// <summary> /// Fill in a TarHeader with information from a File. /// </summary> /// <param name="header"> /// The TarHeader to fill in. /// </param> /// <param name="file"> /// The file from which to get the header information. /// </param> public void GetFileTarHeader(TarHeader header, string file) { if (header == null) { throw new ArgumentNullException("header"); } if (file == null) { throw new ArgumentNullException("file"); } this.file = file; // bugfix from torhovl from #D forum: string name = file; #if !NETCF_1_0 && !NETCF_2_0 // 23-Jan-2004 GnuTar allows device names in path where the name is not local to the current directory if (name.IndexOf(Environment.CurrentDirectory) == 0) { name = name.Substring(Environment.CurrentDirectory.Length); } #endif /* * if (Path.DirectorySeparatorChar == '\\') * { * // check if the OS is Windows * // Strip off drive letters! * if (name.Length > 2) * { * char ch1 = name[0]; * char ch2 = name[1]; * * if (ch2 == ':' && Char.IsLetter(ch1)) * { * name = name.Substring(2); * } * } * } */ name = name.Replace(Path.DirectorySeparatorChar, '/'); // No absolute pathnames // Windows (and Posix?) paths can start with UNC style "\\NetworkDrive\", // so we loop on starting /'s. while (name.StartsWith("/")) { name = name.Substring(1); } header.LinkName = String.Empty; header.Name = name; if (Directory.Exists(file)) { header.Mode = 1003; // Magic number for security access for a UNIX filesystem header.TypeFlag = TarHeader.LF_DIR; if ((header.Name.Length == 0) || header.Name[header.Name.Length - 1] != '/') { header.Name = header.Name + "/"; } header.Size = 0; } else { header.Mode = 33216; // Magic number for security access for a UNIX filesystem header.TypeFlag = TarHeader.LF_NORMAL; header.Size = new FileInfo(file.Replace('/', Path.DirectorySeparatorChar)).Length; } header.ModTime = System.IO.File.GetLastWriteTime(file.Replace('/', Path.DirectorySeparatorChar)).ToUniversalTime(); header.DevMajor = 0; header.DevMinor = 0; }
/// <summary> /// Convenience method that will modify an entry's name directly /// in place in an entry header buffer byte array. /// </summary> /// <param name="buffer"> /// The buffer containing the entry header to modify. /// </param> /// <param name="newName"> /// The new name to place into the header buffer. /// </param> static public void AdjustEntryName(byte[] buffer, string newName) { TarHeader.GetNameBytes(newName, buffer, 0, TarHeader.NAMELEN); }
/// <summary> /// Add the checksum integer to header buffer. /// </summary> /// <param name = "value"></param> /// <param name = "buffer">The header buffer to set the checksum for</param> /// <param name = "offset">The offset into the buffer for the checksum</param> /// <param name = "length">The number of header bytes to update. /// It's formatted differently from the other fields: it has 6 digits, a /// null, then a space -- rather than digits, a space, then a null. /// The final space is already there, from checksumming /// </param> /// <returns>The modified buffer offset</returns> static int GetCheckSumOctalBytes(long value, byte[] buffer, int offset, int length) { TarHeader.GetOctalBytes(value, buffer, offset, length - 1); return(offset + length); }