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 static char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/4/93"; 36 #endif /* not lint */ 37 38 #if defined(AUTHENTICATION) || defined(ENCRYPTION) 39 #include "telnetd.h" 40 #include <libtelnet/misc.h> 41 42 int 43 net_write(str, len) 44 unsigned char *str; 45 int len; 46 { 47 if (nfrontp + len < netobuf + BUFSIZ) { 48 bcopy((void *)str, (void *)nfrontp, len); 49 nfrontp += len; 50 return(len); 51 } 52 return(0); 53 } 54 55 void 56 net_encrypt() 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() 69 { 70 ttloop(); 71 return(0); 72 } 73 74 char * 75 telnet_getenv(val) 76 char *val; 77 { 78 extern char *getenv(); 79 return(getenv(val)); 80 } 81 82 char * 83 telnet_gets(prompt, result, length, echo) 84 char *prompt; 85 char *result; 86 int length; 87 int echo; 88 { 89 return((char *)0); 90 } 91 #endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ 92