DebTik/cmd/aerotun-keygen/main.go

// aerotun-keygen creates an identity on its owner host without printing secrets.
package main

import (
	"encoding/json"
	"flag"
	"fmt"
	"log"
	"os"
	"debtik/internal/aerotun"
)

func main() {
	out := flag.String("out", "", "new identity JSON path (created once with mode 0600)")
	flag.Parse()
	if *out == "" {
		flag.Usage()
		os.Exit(2)
	}
	private, public, err := aerotun.GenerateIdentity()
	if err != nil {
		log.Fatal(err)
	}
	data, err := json.MarshalIndent(map[string]string{"private_key": private, "public_key": public}, "", "  ")
	if err != nil {
		log.Fatal(err)
	}
	f, err := os.OpenFile(*out, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0600)
	if err != nil {
		log.Fatal(err)
	}
	if _, err = f.Write(data); err != nil {
		f.Close()
		os.Remove(*out)
		log.Fatal(err)
	}
	if err = f.Sync(); err != nil {
		f.Close()
		os.Remove(*out)
		log.Fatal(err)
	}
	if err = f.Close(); err != nil {
		log.Fatal(err)
	}
	fmt.Println(public)
}