1 #include "hb-fuzzer.hh"
9 void trySubset (hb_face_t *face,
10 const hb_codepoint_t text[],
15 hb_subset_profile_t *profile = hb_subset_profile_create ();
17 hb_subset_input_t *input = hb_subset_input_create_or_fail ();
18 *hb_subset_input_drop_hints (input) = drop_hints;
19 *hb_subset_input_drop_ot_layout (input) = drop_ot_layout;
20 hb_set_t *codepoints = hb_subset_input_unicode_set (input);
22 for (int i = 0; i < text_length; i++)
24 hb_set_add (codepoints, text[i]);
27 hb_face_t *result = hb_subset (face, profile, input);
28 hb_face_destroy (result);
30 hb_subset_input_destroy (input);
31 hb_subset_profile_destroy (profile);
34 void trySubset (hb_face_t *face,
35 const hb_codepoint_t text[],
38 for (unsigned int drop_hints = 0; drop_hints < 2; drop_hints++)
40 for (unsigned int drop_ot_layout = 0; drop_ot_layout < 2; drop_ot_layout++)
42 trySubset (face, text, text_length,
43 (bool) drop_hints, (bool) drop_ot_layout);
48 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
50 hb_blob_t *blob = hb_blob_create ((const char *)data, size,
51 HB_MEMORY_MODE_READONLY, NULL, NULL);
52 hb_face_t *face = hb_face_create (blob, 0);
54 const hb_codepoint_t text[] =
56 'A', 'B', 'C', 'D', 'E', 'X', 'Y', 'Z', '1', '2',
57 '3', '@', '_', '%', '&', ')', '*', '$', '!'
60 trySubset (face, text, sizeof (text) / sizeof (hb_codepoint_t));
62 hb_codepoint_t text_from_data[16];
63 if (size > sizeof(text_from_data)) {
64 memcpy(text_from_data,
65 data + size - sizeof(text_from_data),
66 sizeof(text_from_data));
67 unsigned int text_size = sizeof (text_from_data) / sizeof (hb_codepoint_t);
68 trySubset (face, text_from_data, text_size);
71 hb_face_destroy (face);
72 hb_blob_destroy (blob);