add main.gp

README.md

@@ -0,0 +1 @@
+# Gaping ---  A remote host port stability test tool inspired by paping 

go.mod

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+module zlx/zlxGO/study/gaping
+
+go 1.12
+
+require (
+	github.com/labstack/gommon v0.2.8
+	github.com/mattn/go-colorable v0.1.1 // indirect
+	github.com/mattn/go-isatty v0.0.7 // indirect
+)

go.sum

@@ -0,0 +1,8 @@
+github.com/labstack/gommon v0.2.8 h1:JvRqmeZcfrHC5u6uVleB4NxxNbzx6gpbJiQknDbKQu0=
+github.com/labstack/gommon v0.2.8/go.mod h1:/tj9csK2iPSBvn+3NLM9e52usepMtrd5ilFYA+wQNJ4=
+github.com/mattn/go-colorable v0.1.1 h1:G1f5SKeVxmagw/IyvzvtZE4Gybcc4Tr1tf7I8z0XgOg=
+github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=
+github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.7 h1:UvyT9uN+3r7yLEYSlJsbQGdsaB/a0DlgWP3pql6iwOc=
+github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=

main.go

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+package main
+
+import (
+	"fmt"
+	"github.com/labstack/gommon/color"
+	"net"
+	"time"
+	"flag"
+	"os"
+)
+var (
+	help bool
+	v,V bool
+	h string
+	p string
+	c int
+)
+
+func init()  {
+	flag.BoolVar(&help,"help",false,"Show gaping help")
+	flag.BoolVar(&v,"v",false,"Show Version and exit")
+	flag.BoolVar(&V,"V",false,"Show Version and exit")
+	flag.StringVar(&h,"h","","Dest host ipaddress")
+	flag.StringVar(&p,"p","","Dest host port")
+	flag.IntVar(&c,"c",100000000,"Tcp test conuts")
+}
+
+// version
+func Version()  {
+	if v || V {
+		fmt.Println("gaping  v0.01")
+		os.Exit(3)
+	}
+}
+
+// tcp 端口连通性测试
+func TcpConnect(address string) (err error, costTime time.Duration) {
+	nets := new(net.Dialer)
+	nets.Timeout = time.Millisecond * 3000
+	startTime := time.Now()
+	conn, err := nets.Dial("tcp", address)
+	if err != nil {
+		return err, 1000000
+	}
+	conn.Write([]byte("hello I'm test!"))
+	times := time.Since(startTime).Round(time.Microsecond)
+	defer conn.Close()
+	return nil, times
+}
+
+
+// help
+func Help()  {
+	fmt.Println(`Gaping  v0.01- Copyright (c) 2019 Mike chulinx
+Example: pping -h 127.0.0.1 -p 80`)
+	flag.PrintDefaults()
+	os.Exit(2)
+}
+
+// usage
+func Usages() {
+	if help {
+		Help()
+	}
+}
+
+// 格式化打印输出
+func PingPrint(address, port string) {
+	date := time.Now().Format("2006-01-02 15:04:05")
+	err, t := TcpConnect(address)
+	if err != nil {
+		fmt.Printf("%s %s", date, color.Red("Connection timed out\n"))
+	} else {
+		fmt.Printf("%s Connected to %s: time=%s protocol=%s port=%s\n",
+			date, color.Green(address), color.Green(t), color.Green("TCP"), color.Green(port))
+	}
+	time.Sleep(1000 * time.Millisecond)
+}
+
+func main() {
+	flag.Parse()
+	address := fmt.Sprintf("%s:%s", h, p)
+	Version()
+	Usages()
+	if h == "" || p == "" {
+		Help()
+	}
+	for i := 0;i < c; i++ {
+		PingPrint(address, p)
+	}
+}