| 12 | ) |
| 13 | |
| 14 | func FuzzParser(f *testing.F) { |
| 15 | if pf := fixtures.Basic().One().Packfile(); pf != nil { |
| 16 | if data, rerr := io.ReadAll(pf); rerr == nil { |
| 17 | f.Add(data) |
| 18 | } |
| 19 | } |
| 20 | |
| 21 | var overflow bytes.Buffer |
| 22 | overflow.WriteString("PACK") |
| 23 | _ = binary.Write(&overflow, binary.BigEndian, uint32(2)) |
| 24 | _ = binary.Write(&overflow, binary.BigEndian, uint32(1)) |
| 25 | overflow.WriteByte(0x90) |
| 26 | overflow.Write(bytes.Repeat([]byte{0x80}, 9)) |
| 27 | sum := sha1.Sum(overflow.Bytes()) |
| 28 | overflow.Write(sum[:]) |
| 29 | f.Add(overflow.Bytes()) |
| 30 | |
| 31 | f.Fuzz(func(_ *testing.T, data []byte) { |
| 32 | scanner := packfile.NewScanner(bytes.NewReader(data)) |
| 33 | parser, err := packfile.NewParser(scanner) |
| 34 | if err != nil { |
| 35 | return |
| 36 | } |
| 37 | _, _ = parser.Parse() |
| 38 | }) |
| 39 | } |