Coverage Report

Created: 2025-02-19 06:30

/src/fuzz/surface_write_png_fuzzer.c
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// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//      http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <cairo.h>
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#include "fuzzer_temp_file.h"
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3.13k
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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3.13k
    cairo_surface_t *image;
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3.13k
    cairo_surface_t *surface;
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3.13k
    cairo_status_t status;
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3.13k
    cairo_format_t format;
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3.13k
    char *tmpfile = fuzzer_get_tmpfile(data, size);
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3.13k
    image = cairo_image_surface_create_from_png(tmpfile);
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3.13k
    status = cairo_surface_status (image);
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3.13k
    if (status != CAIRO_STATUS_SUCCESS) {
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3.08k
        fuzzer_release_tmpfile(tmpfile);
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3.08k
        return 0;
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3.08k
    }
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    format = cairo_image_surface_get_format(image);
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    surface = cairo_image_surface_create_for_data((unsigned char*)data, format, 1, 1, size);
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    status = cairo_surface_status (surface);
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    if (status != CAIRO_STATUS_SUCCESS) {
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        cairo_surface_destroy(image);
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        fuzzer_release_tmpfile(tmpfile);
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        return 0;
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    }
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    cairo_surface_write_to_png(surface, tmpfile);
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    cairo_surface_destroy(surface);
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    cairo_surface_destroy(image);
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    fuzzer_release_tmpfile(tmpfile);
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    return 0;
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}