telnetd.tproj/authenc.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*-
  25  * Copyright (c) 1991, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  */
  56
  57 #ifndef lint
  58 static char sccsid[] = "@(#)authenc.c   8.2 (Berkeley) 5/30/95";
  59 #endif /* not lint */
  60
  61 #if     defined(AUTHENTICATION) || defined(ENCRYPTION)
  62 #include "telnetd.h"
  63 #include <libtelnet/misc.h>
  64
  65         int
  66 net_write(str, len)
  67         unsigned char *str;
  68         int len;
  69 {
  70         if (nfrontp + len < netobuf + BUFSIZ) {
  71                 memmove((void *)nfrontp, (void *)str, len);
  72                 nfrontp += len;
  73                 return(len);
  74         }
  75         return(0);
  76 }
  77
  78         void
  79 net_encrypt()
  80 {
  81 #ifdef  ENCRYPTION
  82         char *s = (nclearto > nbackp) ? nclearto : nbackp;
  83         if (s < nfrontp && encrypt_output) {
  84                 (*encrypt_output)((unsigned char *)s, nfrontp - s);
  85         }
  86         nclearto = nfrontp;
  87 #endif /* ENCRYPTION */
  88 }
  89
  90         int
  91 telnet_spin()
  92 {
  93         ttloop();
  94         return(0);
  95 }
  96
  97         char *
  98 telnet_getenv(val)
  99         char *val;
 100 {
 101         extern char *getenv();
 102         return(getenv(val));
 103 }
 104
 105         char *
 106 telnet_gets(prompt, result, length, echo)
 107         char *prompt;
 108         char *result;
 109         int length;
 110         int echo;
 111 {
 112         return((char *)0);
 113 }
 114 #endif  /* defined(AUTHENTICATION) || defined(ENCRYPTION) */