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Date: Fri, 3 Sep 2004 10:06:06 -0400 (EDT)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Christopher Cobb <ccobb AT email DOT com>
cc: cygwin AT cygwin DOT com
Subject: Re: Problem executing a .bat script in a directory with spaces using bash
In-Reply-To: <loom.20040903T154613-572@post.gmane.org>
Message-ID: <Pine.GSO.4.61.0409030951520.28876@slinky.cs.nyu.edu>
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On Fri, 3 Sep 2004, Christopher Cobb wrote:

> I get different results than you do.  It seems to work as expected:
>
> chcobb AT CHCOBB-054009 /c/Documents and Settings 09:45:46
> 511$ cat test.bat
> echo %1
>
> chcobb AT CHCOBB-054009 /c/Documents and Settings 09:45:48
> 511$ ./test.bat
>
> C:\Documents and Settings>echo
> ECHO is on.

I believe you're missing the point.  Try

./test.bat "hello world"

and you'll get the error.

I've come across this when writing a pure Windows loader for another
program.  The above is actually an idiosyncrasy of the way spawn() works
in Cygwin (and, incidentally, in Windows' own MSVCRT) -- it calls
CreateProcess, which expects all arguments combined into one command
string (which, in turn, is later parsed for separate arguments - yes,
retarded, I know).  The fact is that, if any argument contains spaces, it
has to be quoted before CreateProcess() is invoked.  Cygwin apparently
doesn't do this properly to the first argument, so the above breaks.  See
spawn_guts() in winsup/cygwin/spawn.cc (warning: a 590!-line function).
<http://cygwin.com/acronyms/#PTC>.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_		pechtcha AT cs DOT nyu DOT edu
ZZZzz /,`.-'`'    -.  ;-;;,_		igor AT watson DOT ibm DOT com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski, Ph.D.
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"Happiness lies in being privileged to work hard for long hours in doing
whatever you think is worth doing."  -- Dr. Jubal Harshaw

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