func openSyncConn(target string, passwd string) (net.Conn, <-chan int64) {
c := openNetConn(target, passwd)
if _, err := c.Write(redis.MustEncodeToBytes(redis.NewCommand("sync"))); err != nil {
log.PanicError(errors.Trace(err), "write sync command failed")
}
return c, waitRdbDump(c)
}
func authPassword(c net.Conn, passwd string) {
if passwd == "" {
return
}
_, err := c.Write(redis.MustEncodeToBytes(redis.NewCommand("auth", passwd)))
if err != nil {
log.PanicError(errors.Trace(err), "write auth command failed")
}
var b = make([]byte, 5)
if _, err := io.ReadFull(c, b); err != nil {
log.PanicError(errors.Trace(err), "read auth response failed")
}
if strings.ToUpper(string(b)) != "+OK\r\n" {
log.Panic("auth failed")
}
}