root node doesn't have a parent, and POSIX does not say what should be
done in that case. Warn developers that different implementations
may do different things.

pointer to the freed root node, but return a pointer to the new
root node. POSIX does not define, what should be returned in
that case.
Fixes Coverity CID 2528.
ok millert@ otto@

remove redundant check on size. ok millert@ deraadt@

actually help us find bugs later (with lint, not cc), if they get
introduced

ok jmc@ otto@

or if malloc must be used suggest check.
Get rid of "one".
OK deraadt@ and jmc@, OK kjell@ to earlier version with "one"s.

David Hill's diffs.
ok otto

originally reported by Gergely Kovacs; help from dhartmei@;
ok tedu@ millert@

`looks to be safe' millert, okay tedu.

fixes pr #4996, from joachim schipper;

"yes, that is correct." jmc@ (a while back)

Remove an extraneous check for dtoa returning Inf/Nan

Decimal point was missing for some exponential output
Only divide sign by 10 once per loop
Add a missing NUL terminator for one case
If there is no whole number portion, print a leading zero (e.g. 0.1 not .1)

and remove fallback code. If somebody is dumb enough to make the
sysctl fail using systrace, he deserves what he gets. Saves 7 syscalls
on process startup.
looks good miod@ ok deraadt@ tedu@

okay deraadt@, otto@
Minor bump (nobody stepped forward with other changes, so let's do this one)

tweaked by tedu@ and myself;

from ray lai;

and then setting errno to EFAULT.  that is balony programming!  they
should keep stumbling along to purposely create a crash, so that the
programmer stops doing that kind of stupid crap.  ok otto

- use err() for error handling
- add lint hints
- spacing nits and missing braces
ok otto

okay otto@

Patch by Leonardo Chiquitto Filho <leonardo@iken.com.br>
Thanks.

Kill old files that are no longer compiled.
okay theo

Make sure tolower/toupper use the whole 8 bits.
okay deraadt@
thanks to everyone who tested

relevant anyway;
ok jaredy@