unfortunately tame "stdio" can only happen well after the sequence of:
authorderaadt <deraadt@openbsd.org>
Tue, 6 Oct 2015 03:25:02 +0000 (03:25 +0000)
committerderaadt <deraadt@openbsd.org>
Tue, 6 Oct 2015 03:25:02 +0000 (03:25 +0000)
commitd2f658a972cf4ff38f61aa9d796b3cb471034bb1
treec3add9e679550c7337961bda9e831413b773868b
parent34c8ff87a45440601b55bcd520299dba7b7f6f43
unfortunately tame "stdio" can only happen well after the sequence of:
utmp parsing, tty opening, setresgid to drop privs.  it only protects
a basic io loop.
discussed with doug
usr.bin/write/write.c