Seperating fuzz data producer api impl and header, using data producer on the easy fuzzers

1 files changed, 10 insertions, 3 deletions

diff --git a/ossfuzz/compress_hc_fuzzer.c b/ossfuzz/compress_hc_fuzzer.c
index 4841367..f06f6dd 100644
--- a/ossfuzz/compress_hc_fuzzer.c
+++ b/ossfuzz/compress_hc_fuzzer.c
@@ -10,16 +10,22 @@
 #include <string.h>
 
 #include "fuzz_helpers.h"
+#include "fuzz_data_producer.h"
 #include "lz4.h"
 #include "lz4hc.h"
 
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
-    uint32_t seed = FUZZ_seed(&data, &size);
-    size_t const dstCapacity = FUZZ_rand32(&seed, 0, LZ4_compressBound(size));
+    FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(data, size);
+    size_t const dstCapacity = FUZZ_dataProducer_uint32(
+      producer, 0, LZ4_compressBound(size));
     char* const dst = (char*)malloc(dstCapacity);
     char* const rt = (char*)malloc(size);
-    int const level = FUZZ_rand32(&seed, LZ4HC_CLEVEL_MIN, LZ4HC_CLEVEL_MAX);
+    int const level = FUZZ_dataProducer_uint32(
+      producer, LZ4HC_CLEVEL_MIN, LZ4HC_CLEVEL_MAX);
+
+    /* Restrict to remaining data from producer */
+    size = producer->size;
 
     FUZZ_ASSERT(dst);
     FUZZ_ASSERT(rt);
@@ -52,6 +58,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 
     free(dst);
     free(rt);
+    FUZZ_dataProducer_free(producer);
 
     return 0;
 }