2 // Mono.Unix/UnixSymbolicLinkInfo.cs
5 // Jonathan Pryor (jonpryor@vt.edu)
7 // (C) 2004 Jonathan Pryor
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 public sealed class UnixSymbolicLinkInfo : UnixFileSystemInfo
38 public UnixSymbolicLinkInfo (string path)
43 internal UnixSymbolicLinkInfo (string path, Stat stat)
48 public override string Name {
49 get {return UnixPath.GetFileName (FullPath);}
52 public UnixFileSystemInfo Contents {
54 return UnixFileSystemInfo.Create (ContentsPath);
58 public string ContentsPath {
64 public bool HasContents {
66 return TryReadLink () != null;
70 public void CreateSymbolicLinkTo (string path)
72 int r = Syscall.symlink (path, OriginalPath);
73 UnixMarshal.ThrowExceptionForLastErrorIf (r);
76 public void CreateSymbolicLinkTo (UnixFileSystemInfo path)
78 int r = Syscall.symlink (path.FullName, OriginalPath);
79 UnixMarshal.ThrowExceptionForLastErrorIf (r);
82 public override void Delete ()
84 int r = Syscall.unlink (FullPath);
85 UnixMarshal.ThrowExceptionForLastErrorIf (r);
89 public override void SetOwner (uint owner, uint group)
91 int r = Syscall.lchown (FullPath, owner, group);
92 UnixMarshal.ThrowExceptionForLastErrorIf (r);
95 protected override int GetFileStatus (string path, out Stat stat)
97 return Syscall.lstat (path, out stat);
100 // TODO: Should ReadLink be in UnixSymbolicLinkInfo?
101 private string ReadLink ()
103 string r = TryReadLink ();
105 UnixMarshal.ThrowExceptionForLastError ();
109 private string TryReadLink ()
111 return UnixPath.ReadSymbolicLink (FullPath);