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 32static const char sccsid[] = "@(#)authenc.c 8.2 (Berkeley) 5/30/95"; 33#endif 34#endif 35#include <sys/cdefs.h> 36__FBSDID("$FreeBSD: stable/11/contrib/telnet/telnetd/authenc.c 351432 2019-08-23 17:40:47Z emaste $"); 37 38#ifdef AUTHENTICATION 39#ifdef ENCRYPTION 40/* Above "#ifdef"s actually "or"'ed together. XXX MarkM 41 */ 42#include "telnetd.h" 43#include <libtelnet/misc.h> 44 45int 46net_write(unsigned char *str, int len) 47{ 48 if (nfrontp + len < netobuf + BUFSIZ) { 49 output_datalen(str, len); 50 return(len); 51 } 52 return(0); 53} 54 55void 56net_encrypt(void) 57{ 58#ifdef ENCRYPTION 59 char *s = (nclearto > nbackp) ? nclearto : nbackp; 60 if (s < nfrontp && encrypt_output) { 61 (*encrypt_output)((unsigned char *)s, nfrontp - s); 62 } 63 nclearto = nfrontp; 64#endif /* ENCRYPTION */ 65} 66 67int 68telnet_spin(void) 69{ 70 ttloop(); 71 return(0); 72} 73 74char * 75telnet_getenv(char *val) 76{ 77 return(getenv(val)); 78} 79 80char * 81telnet_gets(const char *prompt __unused, char *result __unused, int length __unused, int echo __unused) 82{ 83 return(NULL); 84} 85#endif /* ENCRYPTION */ 86#endif /* AUTHENTICATION */ 87