mirror of https://github.com/google/oss-fuzz.git
50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
// Copyright 2022 Google LLC. All Rights Reserved.
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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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package tailfile
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import (
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fuzz "github.com/AdaLogics/go-fuzz-headers"
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"os"
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)
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func FuzzTailfile(data []byte) int {
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if len(data) < 5 {
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return 0
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}
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f := fuzz.NewConsumer(data)
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n, err := f.GetUint64()
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if err != nil {
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return 0
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}
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fileBytes, err := f.GetBytes()
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if err != nil {
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return 0
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}
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defer os.Remove("tailfile")
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fil, err := os.Create("tailfile")
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if err != nil {
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return 0
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}
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defer fil.Close()
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_, err = fil.Write(fileBytes)
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if err != nil {
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return 0
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}
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fil.Seek(0, 0)
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_, _ = TailFile(fil, int(n))
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return 1
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}
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