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* Fix OTP KDC module get_string error handlingGreg Hudson2013-07-171-2/+4
| | | | | | If cb->get_string returns 0 with no result in otp_edata, make sure we set retval to avoid sending an empty OTP hint. If cb->get_string returns an error code in otp_verify, avoid masking that code.
* Use k5calloc instead of k5alloc where appropriateGreg Hudson2013-07-111-2/+2
| | | | | Wherever we use k5alloc with a multiplication in the size parameter,, use the new k5calloc helper function instead.
* Add server-side otp preauth pluginNathaniel McCallum2013-07-116-0/+1145
This plugin implements the proposal for providing OTP support by proxying requests to RADIUS. Details can be found inside the provided documentation as well as on the project page. http://k5wiki.kerberos.org/wiki/Projects/OTPOverRADIUS ticket: 7678