36 lines
768 B
Go
36 lines
768 B
Go
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package main
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import (
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"fmt"
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"net"
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"time"
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)
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func scan() string {
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information := ""
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ifaces, _ := net.Interfaces()
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for _, i := range ifaces {
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addrs, _ := i.Addrs()
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for _, j := range addrs {
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ipv4, _, _ := net.ParseCIDR(j.String())
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if ipv4.IsGlobalUnicast() && ipv4.To4() != nil {
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ipv4 = ipv4.To4()
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ipv4 = ipv4.Mask(ipv4.DefaultMask())
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ipv4[3]++
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for i := 1; i < 256; i++ {
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_, dialErr := net.DialTimeout("tcp", ipv4.String()+":8081", time.Duration(1)*time.Second)
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if dialErr != nil {
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fmt.Println("Cannot connect to " + ipv4.String())
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} else {
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fmt.Println("Response from " + ipv4.String())
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information = fmt.Sprintf("%s\n%s", information, ipv4)
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}
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ipv4[3]++
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}
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}
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}
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}
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return information
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}
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