revert 7d4c7513: bring back S/Key prototypes
(but leave RCSID changes)
diff --git a/auth.h b/auth.h
index fffbe6c..b235906 100644
--- a/auth.h
+++ b/auth.h
@@ -180,6 +180,8 @@
void auth2_challenge_stop(Authctxt *);
int bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **);
int bsdauth_respond(void *, u_int, char **);
+int skey_query(void *, char **, char **, u_int *, char ***, u_int **);
+int skey_respond(void *, u_int, char **);
int allowed_user(struct passwd *);
struct passwd * getpwnamallow(const char *user);