1 /* $NetBSD: authenc.c,v 1.12 2005/02/06 05:58:20 perry Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)authenc.c 8.2 (Berkeley) 5/30/95"; 36 #else 37 __RCSID("$NetBSD: authenc.c,v 1.12 2005/02/06 05:58:20 perry Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #if defined(AUTHENTICATION) || defined(ENCRYPTION) 42 #include "telnetd.h" 43 #include <libtelnet/misc.h> 44 45 int 46 telnet_net_write(unsigned char *str, int len) 47 { 48 if (nfrontp + len < netobuf + BUFSIZ) { 49 output_datalen((const char *)str, len); 50 return(len); 51 } 52 return(0); 53 } 54 55 void 56 net_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 67 int 68 telnet_spin(void) 69 { 70 ttloop(); 71 return(0); 72 } 73 74 char * 75 telnet_getenv(char *val) 76 { 77 return(getenv(val)); 78 } 79 80 char * 81 telnet_gets(char *prompt, char *result, int length, int echo) 82 { 83 return((char *)0); 84 } 85 #endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ 86