xref: /netbsd-src/libexec/telnetd/authenc.c (revision 17dd36da8292193180754d5047c0926dbb56818c)
1 /*	$NetBSD: authenc.c,v 1.7 2000/06/22 06:47:49 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 1991, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 #ifndef lint
38 #if 0
39 static char sccsid[] = "@(#)authenc.c	8.2 (Berkeley) 5/30/95";
40 #else
41 __RCSID("$NetBSD: authenc.c,v 1.7 2000/06/22 06:47:49 thorpej Exp $");
42 #endif
43 #endif /* not lint */
44 
45 #if	defined(AUTHENTICATION) || defined(ENCRYPTION)
46 #include "telnetd.h"
47 #include <libtelnet/misc.h>
48 
49 	int
50 telnet_net_write(str, len)
51 	unsigned char *str;
52 	int len;
53 {
54 	if (nfrontp + len < netobuf + BUFSIZ) {
55 		memmove((void *)nfrontp, (void *)str, len);
56 		nfrontp += len;
57 		return(len);
58 	}
59 	return(0);
60 }
61 
62 	void
63 net_encrypt()
64 {
65 #ifdef	ENCRYPTION
66 	char *s = (nclearto > nbackp) ? nclearto : nbackp;
67 	if (s < nfrontp && encrypt_output) {
68 		(*encrypt_output)((unsigned char *)s, nfrontp - s);
69 	}
70 	nclearto = nfrontp;
71 #endif	/* ENCRYPTION */
72 }
73 
74 	int
75 telnet_spin()
76 {
77 	ttloop();
78 	return(0);
79 }
80 
81 	char *
82 telnet_getenv(val)
83 	char *val;
84 {
85 	return(getenv(val));
86 }
87 
88 	char *
89 telnet_gets(prompt, result, length, echo)
90 	char *prompt;
91 	char *result;
92 	int length;
93 	int echo;
94 {
95 	return((char *)0);
96 }
97 #endif	/* defined(AUTHENTICATION) || defined(ENCRYPTION) */
98