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authenc.cc

/*-
 * Copyright (c) 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the University of
 *    California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * From: @(#)authenc.c  5.1 (Berkeley) 3/1/91
 */
char au_rcsid[] = 
  "$Id: authenc.cc,v 1.6 2000/07/23 03:24:53 dholland Exp $";

#if   defined(ENCRYPT) || defined(AUTHENTICATE)
#include <sys/types.h>
#include <arpa/telnet.h>
#include <libtelnet/encrypt.h>
#include <libtelnet/misc.h>

#include "ring.h"
#include "externs.h"
#include "defines.h"
#include "types.h"
#include "proto.h"

      int
net_write(str, len)
      unsigned char *str;
      int len;
{
      if (NETROOM() > len) {
            netoring.supply_data(str, len);
            if (str[0] == IAC && str[1] == SE)
                  printsub('>', &str[2], len-2);
            return(len);
      }
      return(0);
}

      void
net_encrypt()
{
#if   defined(ENCRYPT)
      if (encrypt_output)
            ring_encrypt(&netoring, encrypt_output);
      else
            ring_clearto(&netoring);
#endif
}

      int
telnet_spin()
{
      return(-1);
}

      char *
telnet_getenv(val)
      char *val;
{
      /* not sure about the export_only flag, but this code
       * isn't used anyway --okir */
      return((char *)env_getvalue((unsigned char *)val, 1));
}

      char *
telnet_gets(prompt, result, length, echo)
      char *prompt;
      char *result;
      int length;
      int echo;
{
      extern char *getpass();
      extern int globalmode;
      int om = globalmode;
      char *res;

      TerminalNewMode(-1);
      if (echo) {
            printf("%s", prompt);
            res = fgets(result, length, stdin);
      } 
      else if ((res = getpass(prompt))!=NULL) {
            strncpy(result, res, length);
            res = result;
      }
      TerminalNewMode(om);
      return(res);
}
#endif

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