72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
// 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 <cairo-pdf.h>
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#include "fuzzer_temp_file.h"
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static cairo_surface_t *
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acquire (cairo_pattern_t *pattern, void *closure,
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cairo_surface_t *target,
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const cairo_rectangle_int_t *extents)
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{
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return cairo_image_surface_create_from_png(closure);
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}
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static void
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release (cairo_pattern_t *pattern, void *closure, cairo_surface_t *surface)
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{
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cairo_surface_destroy(surface);
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}
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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cairo_t *cr;
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cairo_surface_t *surface;
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cairo_pattern_t *pattern;
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cairo_content_t content;
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cairo_status_t status;
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int w, h;
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char *tmpfile = fuzzer_get_tmpfile(data, size);
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surface = cairo_image_surface_create_from_png(tmpfile);
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status = cairo_surface_status (surface);
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if (status != CAIRO_STATUS_SUCCESS) {
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fuzzer_release_tmpfile(tmpfile);
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return 0;
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}
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cr = cairo_create(surface);
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content = cairo_surface_get_content(surface);
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w = cairo_image_surface_get_width(surface);
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h = cairo_image_surface_get_height(surface);
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char *buf = (char *) calloc(size + 1, sizeof(char));
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memcpy(buf, data, size);
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buf[size] = '\0';
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pattern = cairo_pattern_create_raster_source(buf, content, w, h);
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cairo_raster_source_pattern_set_acquire (pattern, acquire, release);
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cairo_set_source(cr, pattern);
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cairo_pdf_surface_set_page_label(surface, buf);
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cairo_pdf_surface_set_metadata(surface, CAIRO_PDF_METADATA_KEYWORDS, buf);
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cairo_paint(cr);
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cairo_destroy(cr);
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cairo_pattern_destroy(pattern);
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cairo_surface_destroy(surface);
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free(buf);
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fuzzer_release_tmpfile(tmpfile);
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return 0;
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}
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