[syslinux] Enhanced MDISKCHK.COM and MEMDISK patches

[Gert Hulselmans]

Shao Miller wrote:
> Good day to all,
>
> Gert Hulselmans requested a feature for MDISKCHK.COM that would function
> roughly like GETARGS.COM[1] by Murali Krishnan Ganapathy: DOS SET
> command output for MEMDISK kernel arguments passed by previous
> boot-loaders.  He also needed to support the case for
> MEMDISK-in-a-MEMDISK type situations, where all MEMDISK kernel arguments
> could be gathered together and output as a list of DOS SET commands.
>
> One way to search for "outer" MEMDISKs is via mBFT and/or INT 13h "safe
> hook" scanning.  To support this, some modifications to MEMDISK were
> needed to allow the sharing of common structure information to
> MDISKCHK.COM's source code.  Also, one MEMDISK bug was found.
>
> If you are currently a GETARGS.COM user and your batch file goes like:
>
> @echo off
> getargs.com>setenv.bat
> call setenv.bat>nul
>
> you can accomplish the same thing with MDISKCHK.COM using:
>
> @echo off
> echo @echo off>setenv.bat
> mdiskchk.com -b>>setenv.bat
> call setenv.bat>nul
>
> Some of the work done on MEMDISK might be useful for COM32 modules at
> some point, too.
>
> How about getting this[2] merged?  Thanks for your time,
>
> - Shao Miller
>
> [1] http://people.cs.uchicago.edu/~gmurali/gui/downloads.html
> [2]
> http://git.etherboot.org/?p=people/sha0/syslinux.git;a=log;h=refs/heads/mdiskchk_enhanced
>

A big thank you.

So for an optimal result, you need to compile the MEMDISK version included
in your branch?

- Gert Hulselmans