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 8.2 (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 */ 32 33 #ifdef AUTHENTICATION 34 #ifdef ENCRYPTION 35 /* Above "#ifdef"s actually "or"'ed together. XXX MarkM 36 */ 37 #include "telnetd.h" 38 #include <libtelnet/misc.h> 39 40 extern void (*encrypt_output)(unsigned char *, int); 41 42 int 43 net_write(unsigned char *str, int len) 44 { 45 if (nfrontp + len < netobuf + BUFSIZ) { 46 output_datalen(str, len); 47 return(len); 48 } 49 return(0); 50 } 51 52 void 53 net_encrypt(void) 54 { 55 #ifdef ENCRYPTION 56 char *s = (nclearto > nbackp) ? nclearto : nbackp; 57 if (s < nfrontp && encrypt_output) { 58 (*encrypt_output)((unsigned char *)s, nfrontp - s); 59 } 60 nclearto = nfrontp; 61 #endif /* ENCRYPTION */ 62 } 63 64 int 65 telnet_spin(void) 66 { 67 ttloop(); 68 return(0); 69 } 70 71 char * 72 telnet_getenv(char *val) 73 { 74 return(getenv(val)); 75 } 76 77 char * 78 telnet_gets(const char *prompt __unused, char *result __unused, int length __unused, int echo __unused) 79 { 80 return(NULL); 81 } 82 #endif /* ENCRYPTION */ 83 #endif /* AUTHENTICATION */ 84