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55 lines
1.4 KiB
55 lines
1.4 KiB
// Copyright 2017 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"errors"
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"fmt"
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"os"
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"strings"
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"github.com/ethereum/go-ethereum/core/asm"
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"github.com/urfave/cli/v2"
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)
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var disasmCommand = &cli.Command{
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Action: disasmCmd,
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Name: "disasm",
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Usage: "Disassembles evm binary",
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ArgsUsage: "<file>",
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}
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func disasmCmd(ctx *cli.Context) error {
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var in string
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switch {
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case len(ctx.Args().First()) > 0:
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fn := ctx.Args().First()
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input, err := os.ReadFile(fn)
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if err != nil {
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return err
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}
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in = string(input)
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case ctx.IsSet(InputFlag.Name):
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in = ctx.String(InputFlag.Name)
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default:
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return errors.New("missing filename or --input value")
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}
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code := strings.TrimSpace(in)
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fmt.Printf("%v\n", code)
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return asm.PrintDisassembled(code)
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}
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