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32 lines
448 B
32 lines
448 B
package main
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import (
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"fmt"
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"net"
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"os"
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"time"
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)
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func main() {
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if len(os.Args) != 2 {
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fmt.Printf("Usage: %s hostname\n", os.Args[0])
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os.Exit(1)
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}
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start := time.Now()
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addrs, err := net.LookupHost(os.Args[1])
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end := time.Now()
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elapsed := end.Sub(start)
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if err != nil {
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fmt.Println(err)
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os.Exit(2)
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}
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for _, addr := range addrs {
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fmt.Println(addr)
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}
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fmt.Println()
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fmt.Printf("Elapsed: %d ms\n", elapsed.Milliseconds())
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}
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