1 files changed, 31 insertions, 0 deletions
diff --git a/src/fuzz/fuzz-json.c b/src/fuzz/fuzz-json.c
new file mode 100644
index 0000000..f9a0e81
--- /dev/null
+++ b/src/fuzz/fuzz-json.c
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "fileio.h"
+#include "fd-util.h"
+#include "fuzz.h"
+#include "json.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+        _cleanup_free_ char *out = NULL; /* out should be freed after g */
+        size_t out_size;
+        _cleanup_fclose_ FILE *f = NULL, *g = NULL;
+        _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+
+        if (size == 0)
+                return 0;
+
+        f = fmemopen_unlocked((char*) data, size, "re");
+        assert_se(f);
+
+        if (json_parse_file(f, NULL, 0, &v, NULL, NULL) < 0)
+                return 0;
+
+        g = open_memstream_unlocked(&out, &out_size);
+        assert_se(g);
+
+        json_variant_dump(v, 0, g, NULL);
+        json_variant_dump(v, JSON_FORMAT_PRETTY|JSON_FORMAT_COLOR|JSON_FORMAT_SOURCE, g, NULL);
+
+        return 0;
+}