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. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if 0
35#ifndef lint
36static const char sccsid[] = "@(#)authenc.c	8.1 (Berkeley) 6/6/93";
37#endif
38#endif
39#include <sys/cdefs.h>
40__FBSDID("$FreeBSD: src/contrib/telnet/telnet/authenc.c,v 1.6 2003/05/04 02:54:48 obrien Exp $");
41
42#ifdef	AUTHENTICATION
43#ifdef	ENCRYPTION
44#include <sys/types.h>
45#include <arpa/telnet.h>
46#include <pwd.h>
47#include <unistd.h>
48#include <libtelnet/encrypt.h>
49#include <libtelnet/misc.h>
50
51#include "general.h"
52#include "ring.h"
53#include "externs.h"
54#include "defines.h"
55#include "types.h"
56
57int
58net_write(unsigned char *str, int len)
59{
60	if (NETROOM() > len) {
61		ring_supply_data(&netoring, str, len);
62		if (str[0] == IAC && str[1] == SE)
63			printsub('>', &str[2], len-2);
64		return(len);
65	}
66	return(0);
67}
68
69void
70net_encrypt(void)
71{
72#ifdef	ENCRYPTION
73	if (encrypt_output)
74		ring_encrypt(&netoring, encrypt_output);
75	else
76		ring_clearto(&netoring);
77#endif	/* ENCRYPTION */
78}
79
80int
81telnet_spin(void)
82{
83	return(-1);
84}
85
86char *
87telnet_getenv(char *val)
88{
89	return((char *)env_getvalue((unsigned char *)val));
90}
91
92char *
93telnet_gets(const char *prom, char *result, int length, int echo)
94{
95	extern int globalmode;
96	int om = globalmode;
97	char *res;
98
99	TerminalNewMode(-1);
100	if (echo) {
101		printf("%s", prom);
102		res = fgets(result, length, stdin);
103	} else if ((res = getpass(prom))) {
104		strncpy(result, res, length);
105		res = result;
106	}
107	TerminalNewMode(om);
108	return(res);
109}
110#endif	/* ENCRYPTION */
111#endif	/* AUTHENTICATION */
112