From: arne@vajhoej.dk   
      
   On 9/4/2025 12:52 PM, hb0815 wrote:   
   > On 9/4/25 00:38, Johnny Billquist wrote:   
   >> Really? The length bytes are not actually any data in the file. Same   
   >> with padding. I would say it would be a very bad bug to actually   
   >> include them.   
   >>   
   >>> And here I thought “binary” meant “transfer all the bytes in the   
   file as   
   >>> is” ...   
   >>   
   >> And it does. All the bytes of the file. Not all the metadata that   
   >> exists outside of the data content.   
   >   
   > Although the length and padding bytes are not data, they are still bytes   
   > of the file. What was shown indicates that only the data, not all the   
   > bytes, were transferred. I don't think that this makes sense or is   
   > useful. But, VMS users very likely use the (unsupported) zip and unzip   
   > utility to ensure that they get transferred what they really want/need.   
      
   Discussing binary ftp of text files is a bit odd, because it   
   is not expected to work.   
      
   Binary FTP from VMS to Linux loose line structure. But even   
   if it did transfer all bytes Linux would just see a bunch   
   of bytes not making any sense as lines.   
      
   But that not working is not unique for VMS-*nix. Between   
   Windows and *nix you can end up with text files with a   
   trailing CR on all lines on *nix or lines not recognized   
   due to missing CR in older Windows apps.   
      
   I still think the FIX odd record length is a much better   
   example.   
      
   It is something that could happen in real world.   
      
   The expectation would be that it could be FTP'ed   
   binary.   
      
   And I would say that the least surprising handling   
   is what FTP actually does: loose the padding zero.   
      
   It would be quite confusing to write a FIX 1 file   
   on VMS, binary FTP it to Linux and see those   
   null bytes.   
      
   Arne   
      
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