lib/fuzzing: Also confirm we can make a string filter from the parsed tree in fuzz_ld...

This also avoids tree being an unused variable.

This is similar to doing an ndr_push() in ndr_fuzz_X, it
catches some of the cases where the parse is successful but
the application code could misinterpret the structure.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>

diff --git a/lib/fuzzing/fuzz_ldb_parse_tree.c b/lib/fuzzing/fuzz_ldb_parse_tree.c
index f0f021481422fff7d84a223843c9dbd61a1f1686..bbcdeab2e67c039892112cdf05776f354f1f898e 100644 (file)
--- a/lib/fuzzing/fuzz_ldb_parse_tree.c
+++ b/lib/fuzzing/fuzz_ldb_parse_tree.c
@@ -44,6 +44,8 @@ int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len)
 
        tree = ldb_parse_tree(mem_ctx, filter);
 
+       (void)ldb_filter_from_tree(tree, mem_ctx);
+
        talloc_free(mem_ctx);
 
        return 0;