Add fuzzing binary for ldb_parse_tree

Signed-off-by: Michael Hanselmann <public@hansmi.ch>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>

2 files changed, 57 insertions, 0 deletions

diff --git a/lib/fuzzing/fuzz_ldb_parse_tree.c b/lib/fuzzing/fuzz_ldb_parse_tree.c
new file mode 100644
index 00000000000..f0f02148142
--- /dev/null
+++ b/lib/fuzzing/fuzz_ldb_parse_tree.c
@@ -0,0 +1,50 @@
+/*
+   Fuzzing for ldb_parse_tree
+   Copyright (C) Michael Hanselmann 2019
+
+   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.h"
+#include "ldb_module.h"
+
+int LLVMFuzzerInitialize(int *argc, char ***argv)
+{
+	return 0;
+}
+
+int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
+{
+	TALLOC_CTX *mem_ctx = talloc_init(__FUNCTION__);
+	struct ldb_parse_tree *tree;
+	char *filter;
+
+	if (len < 1) {
+		return 0;
+	}
+
+	filter = talloc_strndup(mem_ctx, (const char*)buf, len);
+
+	if (filter == NULL) {
+		return 0;
+	}
+
+	tree = ldb_parse_tree(mem_ctx, filter);
+
+	talloc_free(mem_ctx);
+
+	return 0;
+}
diff --git a/lib/fuzzing/wscript_build b/lib/fuzzing/wscript_build
index d035f7e1a3f..7305ce41262 100644
--- a/lib/fuzzing/wscript_build
+++ b/lib/fuzzing/wscript_build
@@ -46,3 +46,10 @@ bld.SAMBA_BINARY('fuzz_ldap_decode',
                  install=False,
                  enabled=bld.env.enable_libfuzzer,
                  )
+
+bld.SAMBA_BINARY('fuzz_ldb_parse_tree',
+                 source='fuzz_ldb_parse_tree.c',
+                 deps='fuzzing ldb',
+                 install=False,
+                 enabled=bld.env.enable_libfuzzer
+                 )