make the monitor sync the transfer ssh1 session key;
transfer keycontext only for RC4 (this is still depends on EVP
implementation details and is broken).

__FUNCTION__ -> __func__

save the session id (hash) for ssh2 (it will be passed with the initial sign request)
and verify that this value is used during authentication; ok provos@

only allow enabled authentication methods; ok provos@

'monitor' variable clashes with at least one lame platform (NeXT). Renamed
to 'pmonitor'. provos@

Fix sshd Banner option for privsep; ok markus@ provos@

check waitpid for EINTR; based on patch from peter@ifm.liu.se

monitor_allowed_key() returns int instead of pointer. ok markus@

remove "\n" from fatal()

fix NULL %s on debug3(); ok markus@

use SSH_SESSION_KEY_LENGTH for key length

make getpwnamallow() allways call pwcopy()

whitespace KNF

clean up prototypes

implementation of the interface between privileged and unprivileged process
for ssh-privsep