stdin in binary mode under Windows - how?

["Dr. Markus Walther" <walther@...>]

Hi all,

I am using a Lua 5.1. CGI script to handle HTTP POST-based file uploads 
under Windows/Apache. The script reads blocks of data from stdin until 
EOF, and strips multipart boundaries.

Since stdin is set to text mode, I am losing all carriage returns that 
were present in the original file before upload.

Question: Is there an easy way to change stdin to binary mode under Windows?

--Markus

PS: I briefly studied Kepler sources and _if_ I didn't overlook 
something, there is no provision against this problem as well.