本文实例讲述了Go语言实现的简单网络端口扫描方法。分享给大家供大家参考。具体实现方法如下:
复制代码 代码如下:package main
import (
"net"
"fmt"
"os"
"runtime"
"time"
"strconv"
)
func loop(startport, endport int, inport chan int) {
for i := startport; i <= endport; i++{
inport <- i
}
}
func scanner(inport, outport, out chan int, ip net.IP, endport int){
for{
in := <- inport
//fmt.Println(in)
tcpaddr := &net.TCPAddr{ip,in}
conn, err := net.DialTCP("tcp", nil, tcpaddr)
if err != nil {
outport <- 0
}else{
outport <- in
}
conn.Close()
if in == endport{
out <- in
}
}
}
func main() {
starttime := time.Now().Unix()
runtime.GOMAXPROCS(4)
inport := make(chan int)
outport := make(chan int)
out := make(chan int)
collect := []int{}
if len(os.Args) != 4 {
fmt.Println("Usage: scanner.exe IP startport endport")
fmt.Println("Endport must be larger than startport")
os.Exit(0)
}
ip := net.ParseIP(os.Args[1])
if(os.Args[3] < os.Args[2]) {
fmt.Println("Usage: scanner IP startport endport")
fmt.Println("Endport must be larger than startport")
os.Exit(0)
}
startport, _:= strconv.Atoi(os.Args[2])
endport, _ := strconv.Atoi(os.Args[3])
go loop(startport, endport, inport)
for{
select {
case <-out:
fmt.Println(collect)
endtime := time.Now().Unix()
fmt.Println("The scan process has spent ",endtime-starttime,"second")
os.Exit(0)
default:
go scanner(inport, outport, out, ip, endport)
port := <- outport
if port != 0{
collect = append(collect, port)
}
}
}
}
希望本文所述对大家的Go语言程序设计有所帮助。
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
更新日志
- 白玛多吉《梦》限量1:1母盘直刻[低速原抓WAV+CUE][508M]
- 魏金栋-金歌新曲-梦里全是桂花香2CD[天凡之音][WAV+CUE]
- 鲛岛有美子-樱花赋HQCD[天龙][WAV+CUE]
- [In-Akustik7506]ReferenceSoundEdition-GreatWomenOfSong(2014)HQCD[WAV+CUE]
- 日本EMI超级名盘TOGE-11035-36BeethovenFidelio-Furtwngler
- 宝丽金50周年2010《古典篇》3CD限定盘[低速原抓WAV+CUE]
- 华纳群星.1992-永远新一天华纳15周年金钻群星演唱会2CD【华纳】【WAV+CUE】
- 原声《功夫熊猫4 OST》[FLAC][545M]
- 陈奕迅《酝酿》[WAV分轨][502M]
- Taylor Swift《THE TORTURED POETS DEPARTMENT- THE ANTHOLOGY》[320K/MP3][279.09MB]
- 崔健《85回顾+梦中的倾诉》2CD [WAV+CUE][771M]
- 群星《安桥试音碟》3CD[FLAC][1.1G]
- Taylor Swift《THE TORTURED POETS DEPARTMENT- THE ANTHOLOGY》][24bit 48kH][FLAC/分轨]
- 群星1995-阿诗玛·中国歌剧金曲[中唱][WAV+CUE]
- [JVC]吴文光-中国古琴:流水[FLAC分轨]