Editando: fuzz.go
// Copyright 2019 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. //go:build gofuzz package png import ( "bytes" "fmt" ) func Fuzz(data []byte) int { cfg, err := DecodeConfig(bytes.NewReader(data)) if err != nil { return 0 } if cfg.Width*cfg.Height > 1e6 { return 0 } img, err := Decode(bytes.NewReader(data)) if err != nil { return 0 } levels := []CompressionLevel{ DefaultCompression, NoCompression, BestSpeed, BestCompression, } for _, l := range levels { var w bytes.Buffer e := &Encoder{CompressionLevel: l} err = e.Encode(&w, img) if err != nil { panic(err) } img1, err := Decode(&w) if err != nil { panic(err) } got := img1.Bounds() want := img.Bounds() if !got.Eq(want) { fmt.Printf("bounds0: %#v\n", want) fmt.Printf("bounds1: %#v\n", got) panic("bounds have changed") } } return 1 }
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