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
32 static const char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93";
33 #endif
34 #endif
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37
38 #ifdef AUTHENTICATION
39 #ifdef ENCRYPTION
40 #include <sys/types.h>
41 #include <arpa/telnet.h>
42 #include <pwd.h>
43 #include <unistd.h>
44 #include <libtelnet/encrypt.h>
45 #include <libtelnet/misc.h>
46
47 #include "general.h"
48 #include "ring.h"
49 #include "externs.h"
50 #include "defines.h"
51 #include "types.h"
52
53 int
net_write(unsigned char * str,int len)54 net_write(unsigned char *str, int len)
55 {
56 if (NETROOM() > len) {
57 ring_supply_data(&netoring, str, len);
58 if (str[0] == IAC && str[1] == SE)
59 printsub('>', &str[2], len-2);
60 return(len);
61 }
62 return(0);
63 }
64
65 void
net_encrypt(void)66 net_encrypt(void)
67 {
68 #ifdef ENCRYPTION
69 if (encrypt_output)
70 ring_encrypt(&netoring, encrypt_output);
71 else
72 ring_clearto(&netoring);
73 #endif /* ENCRYPTION */
74 }
75
76 int
telnet_spin(void)77 telnet_spin(void)
78 {
79 return(-1);
80 }
81
82 char *
telnet_getenv(char * val)83 telnet_getenv(char *val)
84 {
85 return((char *)env_getvalue((unsigned char *)val));
86 }
87
88 char *
telnet_gets(const char * prom,char * result,int length,int echo)89 telnet_gets(const char *prom, char *result, int length, int echo)
90 {
91 extern int globalmode;
92 int om = globalmode;
93 char *res;
94
95 TerminalNewMode(-1);
96 if (echo) {
97 printf("%s", prom);
98 res = fgets(result, length, stdin);
99 } else if ((res = getpass(prom))) {
100 strncpy(result, res, length);
101 res = result;
102 }
103 TerminalNewMode(om);
104 return(res);
105 }
106 #endif /* ENCRYPTION */
107 #endif /* AUTHENTICATION */
108