clobbered by longjmp / vfork instead of the gcc "(void)&foo;" hack.

fail anyway so check for that.  Also convert "." to "" since that
way we avoid the lstat() (which we don't need) and the subsequent
chdir() and some dir checks.

OK deraadt@

is called.

on OpenBSD.

to such, permitting them to be discovered, instead of exploited as the ssh
crc insertion detector was.  Idea by theo, written by tdeval.

ftp://ftp.rsasecurity.com/pub/cryptobytes/crypto3n2.pdf, ok deraadt@

jakob@ ok

ok jason@

be a single digit. Powered by mantoya@.
millert@ ok.

bit flags ORed together.  Currently the only flags defined are
_PASSWORD_SECUREONLY and _PASSWORD_OMITV7 but this is enough to
cause pw_mkdb() to run pwd_mkdb with the options we want.
With this change we no longer generate the old V7 passwd file when
only the extra fields in master.passwd (or the encrypted password)
have changed.  There are other programs that could probably use
the _PASSWORD_OMITV7 flag; they will be converted at a future date.

flag and crank the library major due to the interface change.

deraadt@ ok

o) .Sh AUTHOR -> .Sh AUTHORS;
o) We don't like .Pp before/after .Sh;
o) We don't like .Pp before/after .Rs/.Re;
o) NetBSD -> .Nx;
o) OpenBSD -> .Ox;
millert@ ok

libkern and libc versions.