Date: Fri, 30 Dec 2005 23:36:50 -0500
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: COMSPEC environment variable missing
Message-ID: <20051231043650.GB2322@trixie.casa.cgf.cx>
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References: <43b345c3 AT wupperonline DOT de>
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On Thu, Dec 29, 2005 at 03:11:00AM +0100, Ingo Brueckl wrote:
>Hi.
>
>I'm using the 20051227-snapshot of cygwin1.dll. This is my Windows 98SE
>environment as told by the 'set' command:
>
>  TMP=C:\WINDOWS\TEMP
>  TEMP=C:\WINDOWS\TEMP
>  PROMPT=$p$g
>  winbootdir=C:\WINDOWS
>  PATH=C:\WINDOWS;C:\WINDOWS\COMMAND
>  COMSPEC=C:\WINDOWS\COMMAND.COM
>  DIRCMD=/o:gne
>  windir=C:\WINDOWS
>  BLASTER=A220 I5 D1 H5 P330 T6
>  CMDLINE=myset
>
>In a cygwin program, there is no COMSPEC environment variable. I get NULL
>when using getenv().
>
>In order to check my cygwin environment, I wrote the following program:
>
>  #include <stdio.h>
>  #include <unistd.h>
>
>  int main()
>  {
>    int i;
>
>    for(i = 0;; i++)
>      if (environ[i]) puts(environ[i]);
>      else break;
>
>    return 0;
>  }
>
>which returns:
>
>  !C:=C:\WINDOWS\TEMP
>  TMP=/tmp
>  TEMP=/tmp
>  PROMPT=$p$g
>  WINBOOTDIR=C:\WINDOWS
>  PATH=/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/COMMAND
>  DIRCMD=/o:gne
>  WINDIR=C:\WINDOWS
>  BLASTER=A220 I5 D1 H5 P330 T6
>  CMDLINE=myset
>  PATH=/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/COMMAND
>  TERM=cygwin
>  HOME=/home/ib
>
>Indeed, COMSPEC is missing, and PATH is twice.

PATH twice is a bug (but not a regression).  I couldn't duplicate the
missing COMSPEC.  I only have WinME to try this on, though.

cgf


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