_, err := ctl.WriteString(msg)
		return err
	}
	written := make(chan struct{})
	errc := make(chan error)
	go func() {
		select {
		case <-ctx.Done():
			ctl.WriteString("hangup")
			errc <- mapErr(ctx.Err())
		case <-written:
			errc <- nil
		}
	}()
	_, err := ctl.WriteString(msg)
	close(written)
	if e := <-errc; err == nil && e != nil { // we hung up
		return e
	}
	return err

		return ip4[0] == 127
	}
	return ip.Equal(IPv6loopback)
}

// IsPrivate reports whether ip is a private address, according to
// RFC 1918 (IPv4 addresses) and RFC 4193 (IPv6 addresses).
func (ip IP) IsPrivate() bool {
	if ip4 := ip.To4(); ip4 != nil {
		// Following RFC 1918, Section 3. Private Address Space which says:
		//   The Internet Assigned Numbers Authority (IANA) has reserved the

	// RFC-6335 and https://www.iana.org/assignments/service-names).
	//
	// * Kubernetes-defined prefixed names:
	//   * 'kubernetes.io/h2c' - HTTP/2 prior knowledge over cleartext as described in https://www.rfc-editor.org/rfc/rfc9113.html#name-starting-http-2-with-prior-
	//   * 'kubernetes.io/ws'  - WebSocket over cleartext as described in https://www.rfc-editor.org/rfc/rfc6455

// maxBits is the maximum number of bits permitted for symbols in the table.
// The FSE is written into table, which must be at least 1<<maxBits in size.
// This returns the number of bits in the FSE table and the new offset.
// RFC 4.1.1.
func (r *Reader) readFSE(data block, off, maxSym, maxBits int, table []fseEntry) (tableBits, roff int, err error) {
	br := r.makeBitReader(data, off)
	if err := br.moreBits(); err != nil {
		return 0, 0, err
	}

	for delta > ((base-tmin)*tmax)/2 {
		delta /= base - tmin
		k += base
	}
	return k + (base-tmin+1)*delta/(delta+skew)
}

// Strictly speaking, the remaining code below deals with IDNA (RFC 5890 and
// friends) and not Punycode (RFC 3492) per se.

// acePrefix is the ASCII Compatible Encoding prefix.
const acePrefix = "xn--"

// toASCII converts a domain or domain label to its ASCII form. For example,

/* jcifs msrpc client library in Java
 * Copyright (C) 2006  "Michael B. Allen" <jcifs at samba dot org>
 *                     "Eric Glass" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 

package time

import "errors"

// RFC 3339 is the most commonly used format.
//
// It is implicitly used by the Time.(Marshal|Unmarshal)(Text|JSON) methods.
// Also, according to analysis on https://go.dev/issue/52746,
// RFC 3339 accounts for 57% of all explicitly specified time formats,
// with the second most popular format only being used 8% of the time.
// The overwhelming use of RFC 3339 compared to all other formats justifies

/* jcifs msrpc client library in Java
 * Copyright (C) 2006  "Michael B. Allen" <jcifs at samba dot org>
 *                     "Eric Glass" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 

/* jcifs msrpc client library in Java
 * Copyright (C) 2006  "Michael B. Allen" <jcifs at samba dot org>
 *                     "Eric Glass" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 

/* jcifs msrpc client library in Java
 * Copyright (C) 2006  "Michael B. Allen" <jcifs at samba dot org>
 *                     "Eric Glass" <jcifs at samba dot org>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *