forked from jeffallen/mqtt
/
main.go
53 lines (43 loc) · 1.09 KB
/
main.go
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package main
import (
"flag"
"fmt"
"net"
"os"
proto "github.com/huin/mqtt"
"github.com/jeffallen/mqtt"
)
var host = flag.String("host", "localhost:1883", "hostname of broker")
var user = flag.String("user", "", "username")
var pass = flag.String("pass", "", "password")
var dump = flag.Bool("dump", false, "dump messages?")
var retain = flag.Bool("retain", false, "retain message?")
var wait = flag.Bool("wait", false, "stay connected after publishing?")
func main() {
flag.Parse()
if flag.NArg() != 2 {
fmt.Fprintln(os.Stderr, "usage: pub topic message")
return
}
conn, err := net.Dial("tcp", *host)
if err != nil {
fmt.Fprintf(os.Stderr, "dial: ", err)
return
}
cc := mqtt.NewClientConn(conn)
cc.Dump = *dump
if err := cc.Connect(*user, *pass); err != nil {
fmt.Fprintf(os.Stderr, "connect: %v\n", err)
os.Exit(1)
}
fmt.Println("Connected with client id ", cc.ClientId)
cc.Publish(&proto.Publish{
Header: proto.Header{Retain: *retain},
TopicName: flag.Arg(0),
Payload: proto.BytesPayload([]byte(flag.Arg(1))),
})
if *wait {
<-make(chan bool)
}
cc.Disconnect()
}