1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static const char sccsid[] = "@(#)authenc.c	8.2 (Berkeley) 5/30/95";
33#endif
34#endif
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD: stable/11/contrib/telnet/telnetd/authenc.c 351432 2019-08-23 17:40:47Z emaste $");
37
38#ifdef	AUTHENTICATION
39#ifdef	ENCRYPTION
40/* Above "#ifdef"s actually "or"'ed together. XXX MarkM
41 */
42#include "telnetd.h"
43#include <libtelnet/misc.h>
44
45int
46net_write(unsigned char *str, int len)
47{
48	if (nfrontp + len < netobuf + BUFSIZ) {
49		output_datalen(str, len);
50		return(len);
51	}
52	return(0);
53}
54
55void
56net_encrypt(void)
57{
58#ifdef	ENCRYPTION
59	char *s = (nclearto > nbackp) ? nclearto : nbackp;
60	if (s < nfrontp && encrypt_output) {
61		(*encrypt_output)((unsigned char *)s, nfrontp - s);
62	}
63	nclearto = nfrontp;
64#endif /* ENCRYPTION */
65}
66
67int
68telnet_spin(void)
69{
70	ttloop();
71	return(0);
72}
73
74char *
75telnet_getenv(char *val)
76{
77	return(getenv(val));
78}
79
80char *
81telnet_gets(const char *prompt __unused, char *result __unused, int length __unused, int echo __unused)
82{
83	return(NULL);
84}
85#endif	/* ENCRYPTION */
86#endif	/* AUTHENTICATION */
87