On Sun, Apr 06, 2008 at 03:02:44PM -0700, Doug Hardie wrote: > On Apr 6, 2008, at 14:45, 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 > > Did that prior to my original posting. I find nothing there on it.
The manpage change is documented in revision 1.27. See my other mail documenting proof that the manpages do in fact document the change: http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/stdlib/getenv.3 Using that commit message as a cross-reference, we can correlate the commit in getenv.c -- revision 1.9: http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/stdlib/getenv.c http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/stdlib/getenv.c.diff?r1=1.8;r2=1.9;f=h -- | 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]"
