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Rob Hague
eba6e8210e
The C, D and T record patterns were not anchored and D was tried before C, so a file named, for example, "zD0755 0 x" was treated as a directory and its content read as SCP records, letting whoever controls a file on the server choose the names and contents of files written locally. The patterns now match the whole line. An invalid or unexpected record is reported to the server and thrown as ScpException; previously an unknown record was reported and ignored, and Download(string, Stream) then returned normally with an empty stream. Download(string, FileInfo) no longer shares the directory loop. It accepts an optional T record followed by a C record, so a D or E record can no longer cause an InvalidCastException or let later C records overwrite the file. The directory loop moves to DownloadDirectoryContent and the content copy is renamed DownloadFileContent.