telnetd/telnet/authenc.c

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/*-
* Copyright (c) 1991, 1993
* 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.
*/
#if 0
#ifndef lint
static const char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93";
#endif
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifdef AUTHENTICATION
#ifdef ENCRYPTION
#include <sys/types.h>
#include <arpa/telnet.h>
#include <pwd.h>
#include <unistd.h>
#include <libtelnet/encrypt.h>
#include <libtelnet/misc.h>
#include "general.h"
#include "ring.h"
#include "externs.h"
#include "defines.h"
#include "types.h"
int
net_write(unsigned char *str, int len)
{
if (NETROOM() > len) {
ring_supply_data(&netoring, str, len);
if (str[0] == IAC && str[1] == SE)
printsub('>', &str[2], len-2);
return(len);
}
return(0);
}
void
net_encrypt(void)
{
#ifdef ENCRYPTION
if (encrypt_output)
ring_encrypt(&netoring, encrypt_output);
else
ring_clearto(&netoring);
#endif /* ENCRYPTION */
}
int
telnet_spin(void)
{
return(-1);
}
char *
telnet_getenv(char *val)
{
return((char *)env_getvalue((unsigned char *)val));
}
char *
telnet_gets(const char *prom, char *result, int length, int echo)
{
extern int globalmode;
int om = globalmode;
char *res;
TerminalNewMode(-1);
if (echo) {
printf("%s", prom);
res = fgets(result, length, stdin);
} else if ((res = getpass(prom))) {
strncpy(result, res, length);
res = result;
}
TerminalNewMode(om);
return(res);
}
#endif /* ENCRYPTION */
#endif /* AUTHENTICATION */