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33
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1 package main
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2
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3 import (
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4 "bytes"
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5 "fmt"
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6 "net"
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7 "log"
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8 "os"
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9 )
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10
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11 func main() {
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12 if len(os.Args) < 2 {
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13 fmt.Fprintln(os.Stderr, "wol mac-address1 mac-address2 ...")
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14 os.Exit(1)
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15 }
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16 for i, m := range os.Args {
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17 if i == 0 {
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18 continue
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19 }
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20 hw, err := net.ParseMAC(m)
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21 if err != nil {
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22 log.Fatal(err)
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23 }
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24
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25 b := [][]byte{bytes.Repeat([]byte{255}, 6), bytes.Repeat([]byte(hw), 16)}
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26 pkt := bytes.Join(b, nil)
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27
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28 conn, err := net.Dial("udp", "255.255.255.255:9")
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29 if err != nil {
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30 log.Fatal(err)
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31 }
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32 defer conn.Close()
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33
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34 conn.Write(pkt)
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35 }
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36 }
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37
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