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51 lines
853 B
Go
51 lines
853 B
Go
package main
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import (
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"flag"
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"github.com/fangdingjun/gpp/util"
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"github.com/miekg/dns"
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"log"
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"os"
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"time"
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)
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func initListeners(c *cfg) {
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for _, a := range c.listen {
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log.Printf("Listen on %s %s...\n", a.network, a.addr)
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s := &dns.Server{Addr: a.addr, Net: a.network}
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go func(s *dns.Server) {
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err := s.ListenAndServe()
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if err != nil {
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log.Println(err)
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os.Exit(-1)
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}
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}(s)
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}
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}
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func main() {
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var configFile string
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flag.StringVar(&configFile, "c", "", "config file")
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flag.Parse()
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config, err := parseCfg(configFile)
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if err != nil {
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log.Println(err)
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os.Exit(-1)
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}
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initRouters(config)
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initListeners(config)
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// make a delay to make sure net bind completed before drop privilege
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time.Sleep(time.Second)
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err = util.DropPrivilege(config.User, config.Group)
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if err != nil {
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log.Println(err)
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}
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select {}
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}
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