appl/telnet/telnetd/authenc.c

   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("$Id$");
  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