5.4

1 files changed, 39 insertions, 4 deletions

diff --git a/zen/FindFilePlus/find_file_plus.cpp b/zen/FindFilePlus/find_file_plus.cpp
index ad385668..9fba5f1a 100644
--- a/zen/FindFilePlus/find_file_plus.cpp
+++ b/zen/FindFilePlus/find_file_plus.cpp
@@ -265,14 +265,49 @@ void FileSearcher::readDirImpl(FileInformation& output) //throw FileError
                                            false);      //__in BOOLEAN restartScan
         if (!NT_SUCCESS(rv))
         {
-            if (rv == STATUS_NO_SUCH_FILE) //harmonize ntQueryDirectoryFile() error handling! failure to find a file on first call returns STATUS_NO_SUCH_FILE,
-                rv = STATUS_NO_MORE_FILES; //while on subsequent accesses returns STATUS_NO_MORE_FILES
-            //note: not all directories contain "., .." entries! E.g. a drive's root directory or NetDrive + ftp.gnu.org\CRYPTO.README"
-            //-> addon: this is NOT a directory, it looks like one in NetDrive, but it's a file in Opera
+            /*
+            fallback to default directory query method, if FileIdBothDirectoryInformation is not properly implemented
+            this is required for NetDrive mounted Webdav, e.g. www.box.net and NT4, 2000 remote drives, et al.
+
+            NT status code                  |  Win32 error code
+            --------------------------------|------------------------
+            STATUS_INVALID_LEVEL            | ERROR_INVALID_LEVEL
+            STATUS_NOT_SUPPORTED            | ERROR_NOT_SUPPORTED
+            STATUS_UNEXPECTED_NETWORK_ERROR | ERROR_UNEXP_NET_ERR -> traverse network drive hosted by Win98
+            STATUS_INVALID_PARAMETER        | ERROR_INVALID_PARAMETER
+            STATUS_INVALID_NETWORK_RESPONSE | ERROR_BAD_NET_RESP
+            STATUS_INVALID_INFO_CLASS       | ERROR_INVALID_PARAMETER
+            STATUS_UNSUCCESSFUL             | ERROR_GEN_FAILURE
+            STATUS_ACCESS_VIOLATION         | ERROR_NOACCESS      ->FileIdBothDirectoryInformation on XP accessing UDF
+            STATUS_NO_SUCH_FILE             | ERROR_FILE_NOT_FOUND
+
+            rv == STATUS_NO_SUCH_FILE:
+            failure to find a file on first call returns STATUS_NO_SUCH_FILE, while subsequent accesses return STATUS_NO_MORE_FILES
+            note: not all directories contain ".", ".." entries! E.g. a drive's root directory or NetDrive + ftp.gnu.org\CRYPTO.README"
+            -> addon: this is NOT a directory, it looks like one in NetDrive, but it's a file in Opera
+            STATUS_NO_SUCH_FILE is abused by some citrix shares instead of "STATUS_INVALID_PARAMETER" so we treat it as such!
+            => since the directory is "truly empty" a fallback won't hurt
+            */
+            if (rv == STATUS_INVALID_LEVEL            ||
+                rv == STATUS_NOT_SUPPORTED            ||
+                rv == STATUS_UNEXPECTED_NETWORK_ERROR ||
+                rv == STATUS_INVALID_PARAMETER        ||
+                rv == STATUS_INVALID_NETWORK_RESPONSE ||
+                rv == STATUS_INVALID_INFO_CLASS       ||
+                rv == STATUS_UNSUCCESSFUL             ||
+                rv == STATUS_ACCESS_VIOLATION         ||
+                rv == STATUS_NO_SUCH_FILE)
+                rv = STATUS_NOT_SUPPORTED;
 
             throw NtFileError(rv); //throws STATUS_NO_MORE_FILES when finished
         }
 
+        //for (NTSTATUS i = 0xC0000000L; i != -1; ++i)
+        //{
+        //    if (rtlNtStatusToDosError(i) == 59) //ERROR_UNEXP_NET_ERR
+        //        __asm int 3;
+        //}
+
         if (status.Information == 0)                   //except for the first call to call ::NtQueryDirectoryFile():
             throw NtFileError(STATUS_BUFFER_OVERFLOW); //if buffer size is too small, return value is STATUS_SUCCESS and Information == 0 -> we don't expect this!
     }