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main.go
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// Copyright (C) 2013 chenhm. All rights reserved.
package main
import (
//"bytes"
"code.google.com/p/mahonia"
"fmt"
"log"
"os"
"os/exec"
"strconv"
"strings"
"time"
)
/*
亿赛通解锁小工具
亿赛通解密规则是通过判断程序名和扩展名实现的,所以只需要修改程序名符合规则即可正确读出数据,
例如本程序中RTX.exe,你也可以根据自己公司的规则修改程序名,比如用winword.exe打开.doc。
*/
func main() {
if len(os.Args) < 2 {
fmt.Println("usage:\r\n\t" + os.Args[0] + " file1 file2")
return
}
my := os.Args[0]
files := os.Args[1:]
fin, err := os.Open(my)
if err != nil && os.IsNotExist(err) {
my = my + ".exe"
fin, err = os.Open(my)
if err != nil {
fmt.Println(my, err)
return
}
}
defer fin.Close()
//可执行文件就是UnxUtils中的cat命令,build时被append到了本程序之后,参见make.sh
//cat.exe下载 http://sourceforge.net/projects/unxutils/
exeFile := os.TempDir() + string(os.PathSeparator) + "7z.exe"
fout, err := os.Create(exeFile)
defer fout.Close()
if err != nil {
fmt.Println(exeFile, err)
return
}
buf := make([]byte, 1024)
fin.Seek(-22016, os.SEEK_END)
for {
n, _ := fin.Read(buf)
if 0 == n {
break
}
fout.Write(buf[:n])
}
fout.Close()
fin.Close()
encoder := mahonia.NewEncoder("gb18030")
for i := 0; i < len(files); i++ {
if err != nil {
fmt.Println(err)
}
//cmd需要接受GBK编码的命令
fileName := encoder.ConvertString(files[i])
cmd := exec.Command("cmd", "/Q")
cmdstr := exeFile + " \"" + fileName + "\" > \"" + fileName + ".1l\"\r\n"
cmd.Stdin = strings.NewReader(cmdstr)
cmd.Stderr = os.Stdout
cmd.Stdout = new(DevNull) //忽略输出流
err = cmd.Run()
if err != nil {
log.Fatal(err)
}
t := time.Now().Unix()
//生成一个带有时间戳的备份文件
err = os.Rename(files[i], files[i]+"."+strconv.FormatInt(t, 16))
if err != nil {
log.Fatal(err)
}
err = os.Rename(files[i]+".1l", files[i])
if err != nil {
log.Fatal(err)
}
}
}
type DevNull struct{}
func (DevNull) Write(p []byte) (int, error) {
return len(p), nil
}