also, make it pull prototypes directly from sk-api.c and #error
if the expected version changes. This will make any future regress
test breakage because of SK API changes much more apparent
OpenBSD-Regress-ID: 79b07055de4feb988e31da71a89051ad5969829d
and PIN prompting in the dummy middleware that we use for the tests. Should
fix breakage spotted by dtucker@
OpenBSD-Regress-ID: 379cf9eabfea57aaf7f3f59dafde59889566c484
markus@
This will allow us to test U2F/FIDO2 support in OpenSSH without
requiring real hardware.
ok markus@
OpenBSD-Regress-ID: 88b309464b8850c320cf7513f26d97ee1fdf9aae