add command line arguments
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parent
98bc2c21ba
commit
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28
main.go
28
main.go
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@ -1,8 +1,10 @@
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package main
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import (
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"flag"
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"fmt"
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"log"
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"strings"
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"git.freifunk-franken.de/jkimmel/abbel/capture"
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"git.freifunk-franken.de/jkimmel/abbel/packet"
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@ -14,18 +16,26 @@ type options struct {
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Group string
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Port uint16
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Ifs []string
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UseCapture bool
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UseMulticast bool
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}
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func parseOpts() (options, error) {
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var opt options
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var err error
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opt = options{
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Group: "ff02:0:0:0:0:0:1:6",
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Port: 6696,
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Ifs: []string{"babel"},
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UseCapture: false,
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flag.StringVar(&opt.Group, "group", "ff02:0:0:0:0:0:1:6", "Multicast group to join")
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port := flag.Uint("port", 6696, "Port to listen on")
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flag.BoolVar(&opt.UseMulticast, "m", false, "Use multicast mode")
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ifs := flag.String("i", "any", "Comma-seperated list of interfaces to listen on or \"any\" for all interfaces in capture mode")
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flag.Parse()
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if *port == 0 || *port >= 0xffff {
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return options{}, fmt.Errorf("Invalid port %q", *port)
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}
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opt.Port = uint16(*port)
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for _, iface := range strings.Split(*ifs, ",") {
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opt.Ifs = append(opt.Ifs, iface)
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}
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return opt, err
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@ -50,10 +60,10 @@ func run(opt options) error {
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var err error
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var conn BabelPacketConn
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if opt.UseCapture {
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conn, err = capture.FromInterface(opt.Ifs[0])
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} else {
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if opt.UseMulticast {
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conn, err = packet.Listen(opt.Group, opt.Port, opt.Ifs...)
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} else {
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conn, err = capture.FromInterface(opt.Ifs[0])
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}
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if err != nil {
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return err
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