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Add GetFileEntry() to FAT plugin.

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Natalia Portillo
2019-04-27 00:45:36 +01:00
parent 47fe9adf34
commit 4399f8c3c0
1 changed files with 31 additions and 0 deletions
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31
DiscImageChef.Filesystems/FAT/File.cs
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@@ -32,6 +32,7 @@
using System;
using System.Collections.Generic;
using System.Linq;
using DiscImageChef.CommonTypes.Structs;
namespace DiscImageChef.Filesystems.FAT
@@ -122,5 +123,35 @@ namespace DiscImageChef.Filesystems.FAT
return clusters.ToArray();
}
Errno GetFileEntry(string path, out DirectoryEntry entry)
{
entry = new DirectoryEntry();
string cutPath =
path.StartsWith("/") ? path.Substring(1).ToLower(cultureInfo) : path.ToLower(cultureInfo);
string[] pieces = cutPath.Split(new[] {'/'}, StringSplitOptions.RemoveEmptyEntries);
if(pieces.Length == 0) return Errno.InvalidArgument;
string parentPath = string.Join("/", pieces, 0, pieces.Length - 1);
Errno err = ReadDir(parentPath, out _);
if(err != Errno.NoError) return err;
Dictionary<string, DirectoryEntry> parent;
if(pieces.Length == 1) parent = rootDirectoryCache;
else if(!directoryCache.TryGetValue(parentPath, out parent)) return Errno.InvalidArgument;
KeyValuePair<string, DirectoryEntry> dirent =
parent.FirstOrDefault(t => t.Key.ToLower(cultureInfo) == pieces[pieces.Length - 1]);
if(string.IsNullOrEmpty(dirent.Key)) return Errno.NoSuchFile;
entry = dirent.Value;
return Errno.NoError;
}
}
}