libexec/telnetd/authenc.c

   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) */