Make x509 and asn1 fuzzer reproducible
[openssl.git] / fuzz / x509.c
index 8d383e4..83b00f6 100644 (file)
 #include <openssl/x509.h>
 #include <openssl/bio.h>
 #include <openssl/err.h>
+#include <openssl/rand.h>
 #include "fuzzer.h"
 
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+extern int rand_predictable;
+#endif
+#define ENTROPY_NEEDED 32
+
 int FuzzerInitialize(int *argc, char ***argv)
 {
     OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
     ERR_get_state();
     CRYPTO_free_ex_index(0, -1);
+    RAND_add("", 1, ENTROPY_NEEDED);
+    RAND_status();
+
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+    rand_predictable = 1;
+#endif
     return 1;
 }