authenc.c revision 31622
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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static const char sccsid[] = "@(#)authenc.c 8.2 (Berkeley) 5/30/95"; 37#endif 38static const char rcsid[] = 39 "$Id$"; 40#endif /* not lint */ 41 42#if defined(AUTHENTICATION) || defined(ENCRYPTION) 43#include "telnetd.h" 44#include <libtelnet/misc.h> 45 46 int 47net_write(str, len) 48 unsigned char *str; 49 int len; 50{ 51 if (nfrontp + len < netobuf + BUFSIZ) { 52 memmove((void *)nfrontp, (void *)str, len); 53 nfrontp += len; 54 return(len); 55 } 56 return(0); 57} 58 59 void 60net_encrypt() 61{ 62#ifdef ENCRYPTION 63 char *s = (nclearto > nbackp) ? nclearto : nbackp; 64 if (s < nfrontp && encrypt_output) { 65 (*encrypt_output)((unsigned char *)s, nfrontp - s); 66 } 67 nclearto = nfrontp; 68#endif /* ENCRYPTION */ 69} 70 71 int 72telnet_spin() 73{ 74 ttloop(); 75 return(0); 76} 77 78 char * 79telnet_getenv(val) 80 char *val; 81{ 82 return(getenv(val)); 83} 84 85 char * 86telnet_gets(prompt, result, length, echo) 87 char *prompt; 88 char *result; 89 int length; 90 int echo; 91{ 92 return((char *)0); 93} 94#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ 95