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 * @(#)authenc.c 8.1 (Berkeley) 6/6/93
30 * $FreeBSD: src/crypto/telnet/telnet/authenc.c,v 1.2.8.2 2002/04/13 10:59:08 markm Exp $
31 */
32
33 #ifdef AUTHENTICATION
34 #ifdef ENCRYPTION
35 #include <sys/types.h>
36 #include <arpa/telnet.h>
37 #include <pwd.h>
38 #include <unistd.h>
39 #include <libtelnet/encrypt.h>
40 #include <libtelnet/misc.h>
41
42 #include "general.h"
43 #include "ring.h"
44 #include "externs.h"
45 #include "defines.h"
46 #include "types.h"
47
48 int
net_write(unsigned char * str,int len)49 net_write(unsigned char *str, int len)
50 {
51 if (NETROOM() > len) {
52 ring_supply_data(&netoring, str, len);
53 if (str[0] == IAC && str[1] == SE)
54 printsub('>', &str[2], len-2);
55 return(len);
56 }
57 return(0);
58 }
59
60 void
net_encrypt(void)61 net_encrypt(void)
62 {
63 #ifdef ENCRYPTION
64 if (encrypt_output)
65 ring_encrypt(&netoring, encrypt_output);
66 else
67 ring_clearto(&netoring);
68 #endif /* ENCRYPTION */
69 }
70
71 int
telnet_spin(void)72 telnet_spin(void)
73 {
74 return(-1);
75 }
76
77 char *
telnet_getenv(char * val)78 telnet_getenv(char *val)
79 {
80 return((char *)env_getvalue((unsigned char *)val));
81 }
82
83 char *
telnet_gets(const char * prom,char * result,int length,int echo)84 telnet_gets(const char *prom, char *result, int length, int echo)
85 {
86 extern int globalmode;
87 int om = globalmode;
88 char *res;
89
90 TerminalNewMode(-1);
91 if (echo) {
92 printf("%s", prom);
93 res = fgets(result, length, stdin);
94 } else if ((res = getpass(prom))) {
95 strncpy(result, res, length);
96 res = result;
97 }
98 TerminalNewMode(om);
99 return(res);
100 }
101 #endif /* ENCRYPTION */
102 #endif /* AUTHENTICATION */
103