conf fuzzer: also check for an empty file

[openssl.git] / fuzz / ct.c

diff --git a/fuzz/ct.c b/fuzz/ct.c
index 5dc47f1f1550d12271b6acc55d6d06019130644c..411ccef4a06e54cc53c8f7a2103d33ba9ed55519 100644 (file)
--- a/fuzz/ct.c
+++ b/fuzz/ct.c
@@ -22,7 +22,19 @@ int FuzzerInitialize(int *argc, char ***argv) {
 
 int FuzzerTestOneInput(const uint8_t *buf, size_t len) {
     const uint8_t **pp = &buf;
+    unsigned char *der = NULL;
     STACK_OF(SCT) *scts = d2i_SCT_LIST(NULL, pp, len);
-    SCT_LIST_free(scts);
+    if (scts != NULL) {
+        BIO *bio = BIO_new(BIO_s_null());
+        SCT_LIST_print(scts, bio, 4, "\n", NULL);
+        BIO_free(bio);
+
+        if (i2d_SCT_LIST(scts, &der)) {
+            /* Silence unused result warning */
+        }
+        OPENSSL_free(der);
+
+        SCT_LIST_free(scts);
+    }
     return 0;
 }