On Sun, Apr 06, 2008 at 02:45:24PM -0700, Jeremy Chadwick wrote: > 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
Follow-up: the manpages between 6.3-PRERELEASE and 7.0-STABLE do document said change: http://www.freebsd.org/cgi/man.cgi?query=getenv&apropos=0&sektion=3&manpath=FreeBSD+6.3-RELEASE&format=html http://www.freebsd.org/cgi/man.cgi?query=getenv&apropos=0&sektion=3&manpath=FreeBSD+7.0-stable&format=html -- | 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 | _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
