git subrepo pull (merge) --force deps/libchdr

[pcsx_rearmed.git] / deps / libchdr / deps / zstd-1.5.5 / tests / fuzz / fuzz_helpers.c

diff --git a/deps/libchdr/deps/zstd-1.5.5/tests/fuzz/fuzz_helpers.c b/deps/libchdr/deps/zstd-1.5.5/tests/fuzz/fuzz_helpers.c
new file mode 100644 (file)
index 0000000..f47ff2e
--- /dev/null
+++ b/deps/libchdr/deps/zstd-1.5.5/tests/fuzz/fuzz_helpers.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under both the BSD-style license (found in the
+ * LICENSE file in the root directory of this source tree) and the GPLv2 (found
+ * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
+ */
+#include "fuzz_helpers.h"
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+void* FUZZ_malloc(size_t size)
+{
+    if (size > 0) {
+        void* const mem = malloc(size);
+        FUZZ_ASSERT(mem);
+        return mem;
+    }
+    return NULL;
+}
+
+void* FUZZ_malloc_rand(size_t size, FUZZ_dataProducer_t *producer)
+{
+    if (size > 0) {
+        void* const mem = malloc(size);
+        FUZZ_ASSERT(mem);
+        return mem;
+    } else {
+        uintptr_t ptr = 0;
+        /* Add +- 1M 50% of the time */
+        if (FUZZ_dataProducer_uint32Range(producer, 0, 1))
+            FUZZ_dataProducer_int32Range(producer, -1000000, 1000000);
+        return (void*)ptr;
+    }
+
+}
+
+int FUZZ_memcmp(void const* lhs, void const* rhs, size_t size)
+{
+    if (size == 0) {
+        return 0;
+    }
+    return memcmp(lhs, rhs, size);
+}