[Bug 45320] cmd creates an environment variable with an empty name

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45320

Jason Edmeades <us at edmeades.me.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #62293|0                           |1
        is obsolete|                            |

--- Comment #10 from Jason Edmeades <us at edmeades.me.uk> ---
Created attachment 62294
  --> https://bugs.winehq.org/attachment.cgi?id=62294
Program in the form of individual pass/fail tests

I reworked my program and added more experiments, plus converted it more to a
pass/fail set of operations. It highlights wine gets it wrong when the exe is
built with /MD (In my case, imports from MSVCR110.dll) and passes when the exe
is build with /MT (I believe this builds in the calls).

Under wine:
Script started on 2018-09-14 23:25:41+0100
wine cmd /c testmd
OK - Prove not in getenv:   Getenv (null)
ERROR - Found in Environ: =Z:=Z:\jason\test\45320
OK - Prove found via GetEnvironmentVariable Z:\jason\test\45320 (19, 0)
ERROR - Found in Envp: =Z:=Z:\jason\test\45320
OK - Prove found in GetEnvironmentStrings: =Z:=Z:\jason\test\45320
Prove current directory and =Z:: are independant:
  Before, curdir: Z:\jason\test\45320
  Change env var with SetEnvironmentVariable (19, 0)
  Check env var change works with GetEnvironmentVariable2 Z:\ (3, 0)
OK - Has dir changed (it shouldnt) - Curdir: Z:\jason\test\45320
Prove changing directory does not change =Z:
  Change into a subdir
  Has the variable changed? Should be what was set higher, ie Z:\ 
    Current directory: Z:\jason\test\45320\subdir
OK - GetEnvironmentVariable3 Z:\ (3, 0)
Prove putenv fails to set one:
OK - putenv failed
OK - Prove not in environment now Getenv empty
OK - Not in win32 environ either  (0, 203)
Press any key to end


wine cmd /c testmt
OK - Prove not in getenv:   Getenv (null)
OK - Prove not found in Environ
OK - Prove found via GetEnvironmentVariable Z:\jason\test\45320 (19, 0)
OK - Prove not found in envp
OK - Prove found in GetEnvironmentStrings: =Z:=Z:\jason\test\45320
Prove current directory and =Z:: are independant:
  Before, curdir: Z:\jason\test\45320
  Change env var with SetEnvironmentVariable (19, 0)
  Check env var change works with GetEnvironmentVariable2 Z:\ (3, 0)
OK - Has dir changed (it shouldnt) - Curdir: Z:\jason\test\45320
Prove changing directory does not change =Z:
  Change into a subdir
  Has the variable changed? Should be what was set higher, ie Z:\ 
    Current directory: Z:\jason\test\45320\subdir
OK - GetEnvironmentVariable3 Z:\ (3, 0)
Prove putenv fails to set one:
OK - putenv failed
OK - Prove not in environment now Getenv empty
OK - Not in win32 environ either  (0, 203)
Press any key to end

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