freebsd-dev/crypto/telnet/telnetd/authenc.c

/*-
 * 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.
 */

#include <sys/cdefs.h>

__FBSDID("$FreeBSD$");

#ifndef lint
static const char sccsid[] = "@(#)authenc.c	8.2 (Berkeley) 5/30/95";
#endif

#ifdef	AUTHENTICATION
#ifdef	ENCRYPTION
/* Above "#ifdef"s actually "or"'ed together. XXX MarkM
 */
#include "telnetd.h"
#include <libtelnet/misc.h>

int
net_write(unsigned char *str, int len)
{
	if (nfrontp + len < netobuf + BUFSIZ) {
		output_datalen(str, len);
		return(len);
	}
	return(0);
}

void
net_encrypt(void)
{
#ifdef	ENCRYPTION
	char *s = (nclearto > nbackp) ? nclearto : nbackp;
	if (s < nfrontp && encrypt_output) {
		(*encrypt_output)((unsigned char *)s, nfrontp - s);
	}
	nclearto = nfrontp;
#endif /* ENCRYPTION */
}

int
telnet_spin(void)
{
	ttloop();
	return(0);
}

char *
telnet_getenv(char *val)
{
	return(getenv(val));
}

char *
telnet_gets(const char *prompt __unused, char *result __unused, int length __unused, int echo __unused)
{
	return(NULL);
}
#endif	/* ENCRYPTION */
#endif	/* AUTHENTICATION */