/*

 * Copyright (c) 1989, 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. 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.

 */

/* a *lot* of ugly global definitions that really should be removed...

 */

#include "telnetd.h"

#ifndef __SYMBIAN32__

__RCSID("$Heimdal: global.c,v 1.13 2001/07/19 16:00:42 assar Exp $"

        "$NetBSD: global.c,v 1.2 2003/08/07 09:15:29 agc Exp $");

#endif

/*

 * Telnet server variable declarations

 */

char	options[256];

char	do_dont_resp[256];

char	will_wont_resp[256];

int	linemode;	/* linemode on/off */

int	flowmode;	/* current flow control state */

int	restartany;	/* restart output on any character state */

#ifdef DIAGNOSTICS

int	diagnostic;	/* telnet diagnostic capabilities */

#endif /* DIAGNOSTICS */

int	require_otp;

slcfun	slctab[NSLC + 1];	/* slc mapping table */

char	*terminaltype;

/*

 * I/O data buffers, pointers, and counters.

 */

char	ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;

char	netibuf[BUFSIZ], *netip;

char	netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp;

char	*neturg;		/* one past last bye of urgent data */

int	pcc, ncc;

int	ourpty, net;

int	SYNCHing;		/* we are in TELNET SYNCH mode */

/*

 * The following are some clocks used to decide how to interpret

 * the relationship between various variables.

 */

struct clocks_t clocks;

/* whether to log unauthenticated login attempts */

int log_unauth;

/* do not print warning if connection is not encrypted */

int no_warn;

/*

 * This function appends data to nfrontp and advances nfrontp.

 */

int

output_data (const char *format, ...)

{

  va_list args;

  int remaining, ret;

  va_start(args, format);

  remaining = BUFSIZ - (nfrontp - netobuf);

  ret = vsnprintf (nfrontp,

		   remaining,

		   format,

		   args);

  nfrontp += MIN(ret, remaining-1);

  va_end(args);

  return ret;

}