108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* a *lot* of ugly global definitions that really should be removed...
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*/
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#include "telnetd.h"
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RCSID("$Id: global.c,v 1.12 1997/05/11 06:29:59 assar Exp $");
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/*
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* Telnet server variable declarations
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*/
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char options[256];
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char do_dont_resp[256];
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char will_wont_resp[256];
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int linemode; /* linemode on/off */
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int flowmode; /* current flow control state */
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int restartany; /* restart output on any character state */
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#ifdef DIAGNOSTICS
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int diagnostic; /* telnet diagnostic capabilities */
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#endif /* DIAGNOSTICS */
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int require_otp;
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slcfun slctab[NSLC + 1]; /* slc mapping table */
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char *terminaltype;
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/*
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* I/O data buffers, pointers, and counters.
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*/
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char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;
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char netibuf[BUFSIZ], *netip;
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char netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp;
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char *neturg; /* one past last bye of urgent data */
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int pcc, ncc;
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int ourpty, net;
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int SYNCHing; /* we are in TELNET SYNCH mode */
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/*
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* The following are some clocks used to decide how to interpret
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* the relationship between various variables.
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*/
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struct clocks_t clocks;
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/* whether to log unauthenticated login attempts */
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int log_unauth;
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/* do not print warning if connection is not encrypted */
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int no_warn;
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/*
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* This function appends data to nfrontp and advances nfrontp.
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*/
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int
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output_data (const char *format, ...)
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{
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va_list args;
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size_t remaining, ret;
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va_start(args, format);
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remaining = BUFSIZ - (nfrontp - netobuf);
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ret = vsnprintf (nfrontp,
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remaining,
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format,
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args);
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nfrontp += ret;
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va_end(args);
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return ret;
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}
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