60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
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package main
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import (
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"fmt"
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"log"
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"os"
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"time"
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"github.com/grandcat/zeroconf"
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"golang.org/x/net/context"
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)
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func main() {
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// Create or open a log file
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logFile, err := os.OpenFile("program.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
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if err != nil {
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log.Fatalf("Failed to open log file: %v", err)
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}
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defer logFile.Close()
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// Set log output to the file
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log.SetOutput(logFile)
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// Log a startup message
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log.Println("Starting mDNS query for 'hue-bridge'")
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// Create a new resolver
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resolver, err := zeroconf.NewResolver(nil)
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if err != nil {
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log.Fatalf("Failed to initialize resolver: %v", err)
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}
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// Set up a context with a timeout
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
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defer cancel()
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// Channel to recive the results
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entries := make(chan *zeroconf.ServiceEntry)
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// Start the lookup for the Hue Bridge
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go func() {
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err = resolver.Browse(ctx, "_hue._tcp", "local.", entries)
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if err != nil {
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log.Fatalf("Failed to browse for Hue Bridge: %v", err)
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}
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}()
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// Process the results
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go func() {
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for entry := range entries {
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fmt.Printf("Found Device: %s\n", entry.HostName)
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fmt.Printf("IP Addresses: %v\n", entry.AddrIPv4)
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}
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fmt.Printf("Number of devices found: %d\n", len(entries))
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}()
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// Wait for the context to expire
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<-ctx.Done()
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fmt.Println("mDNS query finished")
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}
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