getenv in FreeBSD 7

[Jeremy Chadwick]

On Sun, Apr 06, 2008 at 02:37:06PM -0700, Doug Hardie wrote:
> Somewhere between FreeBSD 6.2 and 7.0 getenv has been changed to return a 
> null if an environment variable is set but has no value.  I don't find 
> anything anywhere in the documentation/man pages on this.  As a result, you 
> cannot distinguish between a variable that is not set and one that is set 
> to a value of "".  Is this a bug or a feature change?

I'd begin peeking here:

http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/stdlib/getenv.c

-- 
| Jeremy Chadwick                                    jdc at parodius.com |
| Parodius Networking                           http://www.parodius.com/ |
| UNIX Systems Administrator                      Mountain View, CA, USA |
| Making life hard for others since 1977.                  PGP: 4BD6C0CB |