73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
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#include "hb-fuzzer.hh"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "hb-subset.h"
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void trySubset (hb_face_t *face,
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const hb_codepoint_t text[],
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int text_length,
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bool drop_hints,
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bool drop_layout)
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{
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hb_subset_input_t *input = hb_subset_input_create_or_fail ();
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hb_subset_input_set_drop_hints (input, drop_hints);
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hb_subset_input_set_drop_layout (input, drop_layout);
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hb_set_t *codepoints = hb_subset_input_unicode_set (input);
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for (int i = 0; i < text_length; i++)
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{
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hb_set_add (codepoints, text[i]);
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}
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hb_face_t *result = hb_subset (face, input);
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hb_face_destroy (result);
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hb_subset_input_destroy (input);
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}
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void trySubset (hb_face_t *face,
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const hb_codepoint_t text[],
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int text_length)
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{
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for (unsigned int drop_hints = 0; drop_hints < 2; drop_hints++)
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{
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for (unsigned int drop_layout = 0; drop_layout < 2; drop_layout++)
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{
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trySubset (face, text, text_length,
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(bool) drop_hints, (bool) drop_layout);
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}
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}
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
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{
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hb_blob_t *blob = hb_blob_create ((const char *)data, size,
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HB_MEMORY_MODE_READONLY, NULL, NULL);
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hb_face_t *face = hb_face_create (blob, 0);
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const hb_codepoint_t text[] =
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{
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'A', 'B', 'C', 'D', 'E', 'X', 'Y', 'Z', '1', '2',
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'3', '@', '_', '%', '&', ')', '*', '$', '!'
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};
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trySubset (face, text, sizeof (text) / sizeof (hb_codepoint_t));
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hb_codepoint_t text_from_data[16];
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if (size > sizeof(text_from_data)) {
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memcpy(text_from_data,
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data + size - sizeof(text_from_data),
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sizeof(text_from_data));
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unsigned int text_size = sizeof (text_from_data) / sizeof (hb_codepoint_t);
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trySubset (face, text_from_data, text_size);
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}
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hb_face_destroy (face);
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hb_blob_destroy (blob);
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return 0;
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}
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