1 // Copyright 2020 Google LLC
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include <cairo.h>
16 #include "fuzzer_temp_file.h"
17
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)18 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
19 cairo_surface_t *image;
20 cairo_surface_t *surface;
21 cairo_status_t status;
22 cairo_format_t format;
23
24 char *tmpfile = fuzzer_get_tmpfile(data, size);
25 image = cairo_image_surface_create_from_png(tmpfile);
26 status = cairo_surface_status (image);
27 if (status != CAIRO_STATUS_SUCCESS) {
28 fuzzer_release_tmpfile(tmpfile);
29 return 0;
30 }
31
32 format = cairo_image_surface_get_format(image);
33 surface = cairo_image_surface_create_for_data((unsigned char*)data, format, 1, 1, size);
34 status = cairo_surface_status (surface);
35 if (status != CAIRO_STATUS_SUCCESS) {
36 cairo_surface_destroy(image);
37 fuzzer_release_tmpfile(tmpfile);
38 return 0;
39 }
40 cairo_surface_write_to_png(surface, tmpfile);
41
42 cairo_surface_destroy(surface);
43 cairo_surface_destroy(image);
44 fuzzer_release_tmpfile(tmpfile);
45 return 0;
46 }
47