contrib/lz4/ossfuzz/compress_frame_fuzzer.c in extlz4-0.3.1 vs contrib/lz4/ossfuzz/compress_frame_fuzzer.c in extlz4-0.3.2

@@ -11,22 +11,27 @@
 
 #include "fuzz_helpers.h"
 #include "lz4.h"
 #include "lz4frame.h"
 #include "lz4_helpers.h"
+#include "fuzz_data_producer.h"
 
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
-    uint32_t seed = FUZZ_seed(&data, &size);
-    LZ4F_preferences_t const prefs = FUZZ_randomPreferences(&seed);
+    FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(data, size);
+    LZ4F_preferences_t const prefs = FUZZ_dataProducer_preferences(producer);
+    size_t const dstCapacitySeed = FUZZ_dataProducer_retrieve32(producer);
+    size = FUZZ_dataProducer_remainingBytes(producer);
+
     size_t const compressBound = LZ4F_compressFrameBound(size, &prefs);
-    size_t const dstCapacity = FUZZ_rand32(&seed, 0, compressBound);
+    size_t const dstCapacity = FUZZ_getRange_from_uint32(dstCapacitySeed, 0, compressBound);
+
     char* const dst = (char*)malloc(dstCapacity);
     char* const rt = (char*)malloc(size);
 
-    FUZZ_ASSERT(dst);
-    FUZZ_ASSERT(rt);
+    FUZZ_ASSERT(dst!=NULL);
+    FUZZ_ASSERT(rt!=NULL);
 
     /* If compression succeeds it must round trip correctly. */
     size_t const dstSize =
             LZ4F_compressFrame(dst, dstCapacity, data, size, &prefs);
     if (!LZ4F_isError(dstSize)) {
@@ -35,8 +40,9 @@
         FUZZ_ASSERT_MSG(!memcmp(data, rt, size), "Corruption!");
     }
 
     free(dst);
     free(rt);
+    FUZZ_dataProducer_free(producer);
 
     return 0;
 }