mirror of https://github.com/google/oss-fuzz.git
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
/* Copyright 2022 Google LLC
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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#include "gs_fuzzlib.h"
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// Returns 1 if this has a valid PDF header and 0 otherwise
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static int quick_check_pdf(const uint8_t *data, size_t size) {
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// PDF checks. Exit early if we don't have a valid PDF signature.
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if (size < 5) {
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return 0;
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}
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// Check PDF tag. We do this because we want to use seeds
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if (data[0] != 0x25 || data[1] != 0x50 || data[2] != 0x44 || data[3] != 0x46 || data[4] != 0x2d) {
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return 0;
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}
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return 1;
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (quick_check_pdf(data, size) != 1) {
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return 0;
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}
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/* Tests using RGB color scheme */
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gs_to_raster_fuzz(data, size, 1);
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return 0;
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}
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