private readlink_cache_entry LinkGetEntry(FileInfo link)
{
string rpath = link.InternalPath;
readlink_cache_entry entry;
if (readlink_cache.TryGetValue(rpath, out entry))
{
if (link.LastWriteTime <= entry.informationTime)
{
return(entry);
}
}
else
{
entry = new readlink_cache_entry();
entry.informationTime = System.DateTime.MinValue;
readlink_cache[rpath] = entry;
}
session.Message.Write(1, "$ readlink {0}", rpath);
entry.targetPath = session.Sftp.noglob_readlink(rpath);
entry.informationTime = System.DateTime.Now;
entry.cyglink_data = null;
return(entry);
}
internal byte[] LinkGetCyglinkData(FileInfo link)
{
readlink_cache_entry entry = LinkGetEntry(link);
if (entry.cyglink_data == null)
{
string content = entry.targetPath;
if (content.Length > 0 && content[0] == '/' && content.StartsWith(this.RootDirectory))
{
content = Unix.UnixPath.GetRelativePathTo(content, Unix.UnixPath.GetDirectoryPath(link.InternalPath));
}
byte[] data = new byte[System.Text.Encoding.Unicode.GetByteCount(content) + 14];
System.Text.Encoding.ASCII.GetBytes("!<symlink>", 0, 10, data, 0);
data[10] = (byte)'\xFF';
data[11] = (byte)'\xFE';
System.Text.Encoding.Unicode.GetBytes(content, 0, content.Length, data, 12);
data[data.Length - 2] = (byte)'\0';
data[data.Length - 1] = (byte)'\0';
entry.cyglink_data = data;
}
return(entry.cyglink_data);
}
