heimdal: Properly ix bus fault when zero-length request received

Zero length client requests result in a bus fault when attempting to
free malloc()ed pointers within the requests softc. Return an error
when the request is zero length.

This properly fixes PR/268062 without regressions.

PR: 268062
Reported by: Robert Morris <rtm@lcs.mit.edu>
MFC after: 3 days

heimdal: Add additional checks for bad kadmind input

Check return codes for bad input.

MFC after: 3 days

heimdal: Add missing kadmind error checks

Inspired by: Heimdal commmit 1b213c1082be4ef5a1c23928d614c762f837dbe7
MFC after: 3 days

heimdal: Fix NULL dereference when mangled realm message

Fix a NULL dereference in _kadm5_s_init_context() when the client
sends a mangled realm message.

PR: 267912
Reported by: Robert Morris <rtm@lcs.mit.edu>
MFC after: 3 days

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Vendor import of Heimdal 1.1

Vendor import of Heimdal 0.6.

Import of Heimdal 0.5.1.

Approved by: re

Import of Heimdal Kerberos from KTH repository circa 2002/09/16.

Import of Heimdal Kerberos from KTH repository circa 2002/08/29.

Import of Heimdal Kerberos from KTH repository circa 2002/02/17.

import of heimdal 0.3e

Import KTH Heimdal, which will be the core of our Kerberos5.
Userland to follow.