make post failure simulation reversible in all cases
diff --git a/fips/fips.h b/fips/fips.h
index 8833dd2..b626357 100644
--- a/fips/fips.h
+++ b/fips/fips.h
@@ -97,9 +97,8 @@
 int FIPS_selftest_dsa(void);
 int FIPS_selftest_ecdsa(void);
 int FIPS_selftest_ecdh(void);
-void FIPS_corrupt_drbg(void);
-void FIPS_x931_stick(void);
-void FIPS_drbg_stick(void);
+void FIPS_x931_stick(int onoff);
+void FIPS_drbg_stick(int onoff);
 int FIPS_selftest_x931(void);
 int FIPS_selftest_hmac(void);
 int FIPS_selftest_drbg(void);