/*	Create authentication keys for Clive. 	usage: auth [-f] [-d adir] name user secret [group...]		-d adir: clive auth dir		-f: force write of key file when file already exists 	Creates a key file at the clive auth dir for the authdomain name	and user given, containing the key corresponding to the given secret. 	Under flag -f it rewrites the key file even if it exists.*/package main import (	"clive/cmd"	"clive/cmd/opt"	"clive/net/auth"	"os") var (	dir   string	force bool	opts  = opt.New("name user secret [group...]")) func main() {	cmd.UnixIO()	dfltdir := auth.KeyDir()	dir = dfltdir	opts.NewFlag("d", "adir: clive auth dir", &dir)	opts.NewFlag("f", "force write of key file when file already exists", &force)	args := opts.Parse()	if len(args) < 3 {		opts.Usage()	}	name, user, secret := args[0], args[1], args[2]	groups := args[3:]	file := auth.KeyFile(dir, name)	fi, _ := os.Stat(file)	if fi != nil && !force {		cmd.Fatal("key file already exists")	}	err := auth.SaveKey(dir, name, user, secret, groups...)	if err != nil {		cmd.Fatal("%s: %s", file, err)	}	ks, err := auth.LoadKey(dir, name)	if err != nil {		cmd.Fatal("can't load key: %s", err)	}	for _, k := range ks {		if k.Uid == user {			cmd.Warn("%s", file)			return		}	}	cmd.Fatal("bad user")}