telnet.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   8.1 (Berkeley) 6/6/93";
  59 #endif /* not lint */
  60
  61 #if     defined(AUTHENTICATION) || defined(ENCRYPTION)
  62 #include <sys/types.h>
  63 #include <arpa/telnet.h>
  64 #include <libtelnet/encrypt.h>
  65 #include <libtelnet/misc.h>
  66
  67 #include "general.h"
  68 #include "ring.h"
  69 #include "externs.h"
  70 #include "defines.h"
  71 #include "types.h"
  72
  73         int
  74 net_write(str, len)
  75         unsigned char *str;
  76         int len;
  77 {
  78         if (NETROOM() > len) {
  79                 ring_supply_data(&netoring, str, len);
  80                 if (str[0] == IAC && str[1] == SE)
  81                         printsub('>', &str[2], len-2);
  82                 return(len);
  83         }
  84         return(0);
  85 }
  86
  87         void
  88 net_encrypt()
  89 {
  90 #ifdef  ENCRYPTION
  91         if (encrypt_output)
  92                 ring_encrypt(&netoring, encrypt_output);
  93         else
  94                 ring_clearto(&netoring);
  95 #endif  /* ENCRYPTION */
  96 }
  97
  98         int
  99 telnet_spin()
 100 {
 101         return(-1);
 102 }
 103
 104         char *
 105 telnet_getenv(val)
 106         char *val;
 107 {
 108         return((char *)env_getvalue((unsigned char *)val));
 109 }
 110
 111         char *
 112 telnet_gets(prompt, result, length, echo)
 113         char *prompt;
 114         char *result;
 115         int length;
 116         int echo;
 117 {
 118         extern char *getpass();
 119         extern int globalmode;
 120         int om = globalmode;
 121         char *res;
 122
 123         TerminalNewMode(-1);
 124         if (echo) {
 125                 printf("%s", prompt);
 126                 res = fgets(result, length, stdin);
 127         } else if (res = getpass(prompt)) {
 128                 strncpy(result, res, length);
 129                 res = result;
 130         }
 131         TerminalNewMode(om);
 132         return(res);
 133 }
 134 #endif  /* defined(AUTHENTICATION) || defined(ENCRYPTION) */