Libskey changes

[CyberPsychotic <fygrave_(_at_)_tigerteam_(_dot_)_net>]

Hello people,
 I've made some changes in libskey source which I feel being quite
reasonable, (basically took some interesting parts from FreeBSD source
three, and made it compiling cleanly on OpenBSD). I am not sure what would
be proper way to submit these changes(this isn't in FAQ, checked ;-)),
anyway, I've placed the tarball of /usr/src/lib/libskey - as it is on my
system, at http://www.unix.kg/~fygrave/libskey.tar .

Basically changes here are following:

I've added Wietse Venema's skeyaccess routine, which implements
/etc/skey.access checking feature (and is used in pam_cleartext_pass_ok pam
module). Also added skey_pass, and skey_routines, basically because I find
them quite convinient (but they aren't used in libpam, nor in libskey source
itself).

  While making these changes I added _PATH_SKEYACCESS definition to
/usr/include/paths.h (patch included, and changed file supplied). However
the current skeyaccess.c file uses paths.h which resides in current
directory, I basically did that, so the library would compile even if you
didn't run `make beforeinstall' first. Probably this isn't quite good. :)

I also started moving libpam to my OpenBSD box last night, but seems that
things wouldn't go quite fast (so far I managed to tune basic pam library
and some modules (pam_permit/pam_deny/pam_cleartext_pass_ok), since some
other things, which these modules use, should be ported as well..

 Hope, you'll find these changes useful.

Fyodor

PS: sorry if it isn't quite the way to submit such sort of stuff :)

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