GO语言实现的端口扫描器分享

端口扫描
这篇文章主要介绍了GO语言实现的端口扫描器分享,本文直接给出实现代码,代码中包含大量注释,需要的朋友可以参考下

//GO语言  实现端口扫描
    //缺陷
    //port  无法设置成全局变量不知道怎么设置的
    //var l = list.New()   这个是数组操作并不是消息队列    跟消息队列功能类似

    //实现功能     //实现生成 IP段     //实现端口扫描     //实现参数传入     //写入文件到本地     //main.go 58.215.20.30 58.215.201.30 80     //文件名 开始IP 结束IP 扫描端口     //QQ29295842   希望认识更多的朋友技术交流     //QQ群367196336   go   golang WEB安全开发     package main

    import (         "container/list"         "fmt"         "net"         "os"         "strconv"         "strings"         "time"     )

    func ip2num(ip string) int {         canSplit := func(c rune) bool { return c == '.' }         lisit := strings.FieldsFunc(ip, canSplit) //[58 215 20 30]         //fmt.Println(lisit)         ip1_str_int, _ := strconv.Atoi(lisit[0])         ip2_str_int, _ := strconv.Atoi(lisit[1])         ip3_str_int, _ := strconv.Atoi(lisit[2])         ip4_str_int, _ := strconv.Atoi(lisit[3])         return ip1_str_int<<24 | ip2_str_int<<16 | ip3_str_int<<8 | ip4_str_int     }

    func num2ip(num int) string {         ip1_int := (num & 0xff000000) >> 24         ip2_int := (num & 0x00ff0000) >> 16         ip3_int := (num & 0x0000ff00) >> 8         ip4_int := num & 0x000000ff         //fmt.Println(ip1_int)         data := fmt.Sprintf("%d.%d.%d.%d", ip1_int, ip2_int, ip3_int, ip4_int)         return data     }

    func gen_ip(Aip1 int, Aip2 int) {         index := Aip1         for index < Aip2 {             //fmt.Println(num2ip(index))             // 入队, 压栈             ip_data := num2ip(index)             //fmt.Println(ip_data)             l.PushBack(ip_data)             index++         }     }

    func text_add(name string, data string) { //向文件中写入数据   text_add("file2.txt", "qqqqqqqqqqqqqqqqqqqqqqq")         f, err := os.OpenFile(name, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0x644)         if err != nil {             panic(err)         }         defer f.Close()

        _, err = f.WriteString(data)         _, err = f.WriteString("\r\n")         if err != nil {             panic(err)         }     }

    //text_add("file2.txt", "qqqqqqqqqqqqqqqqqqqqqqq")     var l = list.New()

    func socket_ip(host string, port string) bool {         var (             remote = host + ":" + port         )

        tcpAddr, _ := net.ResolveTCPAddr("tcp4", remote) //转换IP格式         //fmt.Printf("%s", tcpAddr)         conn, err := net.DialTCP("tcp", nil, tcpAddr) //查看是否连接成功         if err != nil {             fmt.Printf("no==%s:%s\r\n", host, port)             return false

        }         defer conn.Close()         fmt.Printf("ok==%s:%s\r\n", host, port)         return true     }

    func for_ip(port string) {         now := time.Now()         year, mon, day := now.UTC().Date()         file_name := fmt.Sprintf("%d-%d-%d_%s", year, mon, day, port)         for { //死循环             if l.Len() <= 0 {                 fmt.Println("跳出循环")                 break //#跳出             }             // 出队  从前读取             i1 := l.Front()             l.Remove(i1)             IP, _ := i1.Value.(string)             if socket_ip(IP, port) {                 //OK                 //获取当前  日期作为文件名  在把IP写入进去                 text_add(file_name+"_ok.txt", IP)             } //else {             //  text_add(file_name+"_no.txt", IP)             // }

            time.Sleep(time.Millisecond * 500) //纳秒为单位         }     }

    func main() {         argsLen := len(os.Args)         //fmt.Println(argsLen)         if argsLen != 4 {             fmt.Println("main.go 58.215.20.30 58.215.201.30 80")         } else {             gen_ip(ip2num(os.Args[1]), ip2num(os.Args[2]))             for index := 0; index < 200; index++ {                 go for_ip(os.Args[3])             }             for {                 time.Sleep(1 * time.Second) //纳秒为单位             }

        }     }