87 lines
3.7 KiB
C#
87 lines
3.7 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.IO;
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namespace GeekDesk.Util
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{
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public class Functions
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{
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public static string GetShortcutTarget(string file)
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{
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try
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{
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if (System.IO.Path.GetExtension(file).ToLower() != ".lnk")
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{
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throw new Exception("Supplied file must be a .LNK file");
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}
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FileStream fileStream = File.Open(file, FileMode.Open, FileAccess.Read);
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using (System.IO.BinaryReader fileReader = new BinaryReader(fileStream))
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{
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fileStream.Seek(0x14, SeekOrigin.Begin); // Seek to flags
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uint flags = fileReader.ReadUInt32(); // Read flags
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if ((flags & 1) == 1)
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{ // Bit 1 set means we have to
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// skip the shell item ID list
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fileStream.Seek(0x4c, SeekOrigin.Begin); // Seek to the end of the header
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uint offset = fileReader.ReadUInt16(); // Read the length of the Shell item ID list
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fileStream.Seek(offset, SeekOrigin.Current); // Seek past it (to the file locator info)
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}
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long fileInfoStartsAt = fileStream.Position; // Store the offset where the file info
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// structure begins
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uint totalStructLength = fileReader.ReadUInt32(); // read the length of the whole struct
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fileStream.Seek(0xc, SeekOrigin.Current); // seek to offset to base pathname
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uint fileOffset = fileReader.ReadUInt32(); // read offset to base pathname
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// the offset is from the beginning of the file info struct (fileInfoStartsAt)
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fileStream.Seek((fileInfoStartsAt + fileOffset), SeekOrigin.Begin); // Seek to beginning of
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// base pathname (target)
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long pathLength = (totalStructLength + fileInfoStartsAt) - fileStream.Position - 2; // read
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// the base pathname. I don't need the 2 terminating nulls.
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char[] linkTarget = fileReader.ReadChars((int)pathLength); // should be unicode safe
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var link = new string(linkTarget);
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int begin = link.IndexOf("\0\0");
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if (begin > -1)
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{
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int end = link.IndexOf("\\\\", begin + 2) + 2;
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end = link.IndexOf('\0', end) + 1;
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string firstPart = link.Substring(0, begin);
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string secondPart = link.Substring(end);
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return firstPart + secondPart;
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}
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else
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{
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return link;
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}
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}
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}
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catch
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{
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return "";
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}
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}
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}
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class Program
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{
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static void Main(string[] args)
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{
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if (args.Length == 0)
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{
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System.Console.WriteLine("Please try again with a file path");
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}
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else
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{
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System.Console.WriteLine("LNK File: " + args[0]);
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System.Console.WriteLine("LNK Path: " + Functions.GetShortcutTarget(args[0]));
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}
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}
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}
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}
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