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 #include "telnetd.h" 35 36 RCSID("$Id: authenc.c,v 1.10 2000/11/15 23:20:43 assar Exp $"); 37 38 #ifdef AUTHENTICATION 39 40 int 41 telnet_net_write(unsigned char *str, int len) 42 { 43 if (nfrontp + len < netobuf + BUFSIZ) { 44 memmove(nfrontp, str, len); 45 nfrontp += 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 61 } 62 63 int 64 telnet_spin(void) 65 { 66 return ttloop(); 67 } 68 69 char * 70 telnet_getenv(const char *val) 71 { 72 return(getenv(val)); 73 } 74 75 char * 76 telnet_gets(char *prompt, char *result, int length, int echo) 77 { 78 return NULL; 79 } 80 #endif 81