gitee.com/liu-zhao234568/cntest@v1.0.0/cmd/abidump/main.go (about)

     1  // Copyright 2019 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package main
    18  
    19  import (
    20  	"encoding/hex"
    21  	"flag"
    22  	"fmt"
    23  	"os"
    24  	"strings"
    25  
    26  	"gitee.com/liu-zhao234568/cntest/signer/core"
    27  	"gitee.com/liu-zhao234568/cntest/signer/fourbyte"
    28  )
    29  
    30  func init() {
    31  	flag.Usage = func() {
    32  		fmt.Fprintln(os.Stderr, "Usage:", os.Args[0], "<hexdata>")
    33  		flag.PrintDefaults()
    34  		fmt.Fprintln(os.Stderr, `
    35  Parses the given ABI data and tries to interpret it from the fourbyte database.`)
    36  	}
    37  }
    38  
    39  func parse(data []byte) {
    40  	db, err := fourbyte.New()
    41  	if err != nil {
    42  		die(err)
    43  	}
    44  	messages := core.ValidationMessages{}
    45  	db.ValidateCallData(nil, data, &messages)
    46  	for _, m := range messages.Messages {
    47  		fmt.Printf("%v: %v\n", m.Typ, m.Message)
    48  	}
    49  }
    50  
    51  // Example
    52  // ./abidump a9059cbb000000000000000000000000ea0e2dc7d65a50e77fc7e84bff3fd2a9e781ff5c0000000000000000000000000000000000000000000000015af1d78b58c40000
    53  func main() {
    54  	flag.Parse()
    55  
    56  	switch {
    57  	case flag.NArg() == 1:
    58  		hexdata := flag.Arg(0)
    59  		data, err := hex.DecodeString(strings.TrimPrefix(hexdata, "0x"))
    60  		if err != nil {
    61  			die(err)
    62  		}
    63  		parse(data)
    64  	default:
    65  		fmt.Fprintln(os.Stderr, "Error: one argument needed")
    66  		flag.Usage()
    67  		os.Exit(2)
    68  	}
    69  }
    70  
    71  func die(args ...interface{}) {
    72  	fmt.Fprintln(os.Stderr, args...)
    73  	os.Exit(1)
    74  }