1 files changed, 55 insertions, 0 deletions
diff --git a/lib/fuzzing/fuzz_ldb_parse_binary_decode.c b/lib/fuzzing/fuzz_ldb_parse_binary_decode.c
new file mode 100644
index 0000000..feb26e2
--- /dev/null
+++ b/lib/fuzzing/fuzz_ldb_parse_binary_decode.c
@@ -0,0 +1,55 @@
+/*
+   Fuzzing ldb_binary_decode and ldb_binary_encode_string
+   Copyright (C) Catalyst IT 2020
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "includes.h"
+#include "fuzzing/fuzzing.h"
+#include "ldb_private.h"
+
+
+#define MAX_LENGTH (2 * 1024 * 1024 - 1)
+char buf[MAX_LENGTH + 1] = {0};
+
+static char * possibly_truncate(uint8_t *input, size_t len)
+{
+	if (len > MAX_LENGTH) {
+		len = MAX_LENGTH;
+	}
+	memcpy(buf, input, len);
+	buf[len] = 0;
+	return buf;
+}
+
+
+int LLVMFuzzerTestOneInput(uint8_t *input, size_t len)
+{
+	TALLOC_CTX *mem_ctx = talloc_init(__FUNCTION__);
+	struct ldb_val val = {0};
+	const char *s = possibly_truncate(input, len);
+
+	/* we treat the same string to encoding and decoding, not
+	 * round-tripping. */
+	val = ldb_binary_decode(mem_ctx, s);
+	ldb_binary_encode_string(mem_ctx, s);
+	TALLOC_FREE(mem_ctx);
+	return 0;
+}
+
+
+int LLVMFuzzerInitialize(int *argc, char ***argv)
+{
+	return 0;
+}