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 * 4. 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 8.2 (Berkeley) 5/30/95 30 * $FreeBSD: src/crypto/telnet/telnetd/authenc.c,v 1.4.2.2 2002/04/13 10:59:08 markm Exp $ 31 * $DragonFly: src/crypto/telnet/telnetd/authenc.c,v 1.2 2003/06/17 04:24:37 dillon Exp $ 32 */ 33 34 #ifdef AUTHENTICATION 35 #ifdef ENCRYPTION 36 /* Above "#ifdef"s actually "or"'ed together. XXX MarkM 37 */ 38 #include "telnetd.h" 39 #include <libtelnet/misc.h> 40 41 int 42 net_write(unsigned char *str, int len) 43 { 44 if (nfrontp + len < netobuf + BUFSIZ) { 45 output_datalen(str, len); 46 return(len); 47 } 48 return(0); 49 } 50 51 void 52 net_encrypt(void) 53 { 54 #ifdef ENCRYPTION 55 char *s = (nclearto > nbackp) ? nclearto : nbackp; 56 if (s < nfrontp && encrypt_output) { 57 (*encrypt_output)((unsigned char *)s, nfrontp - s); 58 } 59 nclearto = nfrontp; 60 #endif /* ENCRYPTION */ 61 } 62 63 int 64 telnet_spin(void) 65 { 66 ttloop(); 67 return(0); 68 } 69 70 char * 71 telnet_getenv(char *val) 72 { 73 return(getenv(val)); 74 } 75 76 char * 77 telnet_gets(const char *prompt __unused, char *result __unused, int length __unused, int echo __unused) 78 { 79 return(NULL); 80 } 81 #endif /* ENCRYPTION */ 82 #endif /* AUTHENTICATION */ 83