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#include "telnet_locl.h"
35
36RCSID("$Id$");
37
38#if	defined(AUTHENTICATION) || defined(ENCRYPTION)
39int
40telnet_net_write(unsigned char *str, int len)
41{
42	if (NETROOM() > len) {
43		ring_supply_data(&netoring, str, len);
44		if (str[0] == IAC && str[1] == SE)
45			printsub('>', &str[2], len-2);
46		return(len);
47	}
48	return(0);
49}
50
51void
52net_encrypt(void)
53{
54#if	defined(ENCRYPTION)
55	if (encrypt_output)
56		ring_encrypt(&netoring, encrypt_output);
57	else
58		ring_clearto(&netoring);
59#endif
60}
61
62int
63telnet_spin(void)
64{
65    int ret = 0;
66
67    scheduler_lockout_tty = 1;
68    if (Scheduler(0) == -1)
69	ret = 1;
70    scheduler_lockout_tty = 0;
71
72    return ret;
73
74}
75
76char *
77telnet_getenv(const char *val)
78{
79	return((char *)env_getvalue((unsigned char *)val));
80}
81
82char *
83telnet_gets(char *prompt, char *result, int length, int echo)
84{
85	int om = globalmode;
86	char *res;
87
88	TerminalNewMode(-1);
89	if (echo) {
90		printf("%s", prompt);
91		res = fgets(result, length, stdin);
92	} else if ((res = getpass(prompt))) {
93		strlcpy(result, res, length);
94		res = result;
95	}
96	TerminalNewMode(om);
97	return(res);
98}
99#endif
100