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diff --git a/remote_cmds/telnet.tproj/tn3270.c b/remote_cmds/telnet.tproj/tn3270.c
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+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
+ * Reserved. This file contains Original Code and/or Modifications of
+ * Original Code as defined in and that are subject to the Apple Public
+ * Source License Version 1.0 (the 'License'). You may not use this file
+ * except in compliance with the License. Please obtain a copy of the
+ * License at http://www.apple.com/publicsource and read it before using
+ * this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License."
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1988, 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>
+#ifndef lint
+__unused static char sccsid[] = "@(#)tn3270.c 8.2 (Berkeley) 5/30/95";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <arpa/telnet.h>
+
+#include "general.h"
+
+#include "defines.h"
+#include "ring.h"
+#include "externs.h"
+#include "fdset.h"
+
+#if defined(TN3270)
+
+#include "../ctlr/screen.h"
+#include "../general/globals.h"
+
+#include "../sys_curses/telextrn.h"
+#include "../ctlr/externs.h"
+
+#if defined(unix) || defined(__APPLE__)
+int
+ HaveInput, /* There is input available to scan */
+ cursesdata, /* Do we dump curses data? */
+ sigiocount; /* Number of times we got a SIGIO */
+
+char tline[200];
+char *transcom = 0; /* transparent mode command (default: none) */
+#endif /* defined(unix) || defined(__APPLE__) */
+
+char Ibuf[8*BUFSIZ], *Ifrontp, *Ibackp;
+
+static char sb_terminal[] = { IAC, SB,
+ TELOPT_TTYPE, TELQUAL_IS,
+ 'I', 'B', 'M', '-', '3', '2', '7', '8', '-', '2',
+ IAC, SE };
+#define SBTERMMODEL 13
+
+static int
+ Sent3270TerminalType; /* Have we said we are a 3270? */
+
+#endif /* defined(TN3270) */
+
+
+ void
+init_3270()
+{
+#if defined(TN3270)
+#if defined(unix) || defined(__APPLE__)
+ HaveInput = 0;
+ sigiocount = 0;
+#endif /* defined(unix) || defined(__APPLE__) */
+ Sent3270TerminalType = 0;
+ Ifrontp = Ibackp = Ibuf;
+ init_ctlr(); /* Initialize some things */
+ init_keyboard();
+ init_screen();
+ init_system();
+#endif /* defined(TN3270) */
+}
+
+
+#if defined(TN3270)
+
+/*
+ * DataToNetwork - queue up some data to go to network. If "done" is set,
+ * then when last byte is queued, we add on an IAC EOR sequence (so,
+ * don't call us with "done" until you want that done...)
+ *
+ * We actually do send all the data to the network buffer, since our
+ * only client needs for us to do that.
+ */
+
+ int
+DataToNetwork(buffer, count, done)
+ register char *buffer; /* where the data is */
+ register int count; /* how much to send */
+ int done; /* is this the last of a logical block */
+{
+ register int loop, c;
+ int origCount;
+
+ origCount = count;
+
+ while (count) {
+ /* If not enough room for EORs, IACs, etc., wait */
+ if (NETROOM() < 6) {
+ fd_set o;
+
+ FD_ZERO(&o);
+ netflush();
+ while (NETROOM() < 6) {
+ FD_SET(net, &o);
+ (void) select(net+1, (fd_set *) 0, &o, (fd_set *) 0,
+ (struct timeval *) 0);
+ netflush();
+ }
+ }
+ c = ring_empty_count(&netoring);
+ if (c > count) {
+ c = count;
+ }
+ loop = c;
+ while (loop) {
+ if (((unsigned char)*buffer) == IAC) {
+ break;
+ }
+ buffer++;
+ loop--;
+ }
+ if ((c = c-loop)) {
+ ring_supply_data(&netoring, buffer-c, c);
+ count -= c;
+ }
+ if (loop) {
+ NET2ADD(IAC, IAC);
+ count--;
+ buffer++;
+ }
+ }
+
+ if (done) {
+ NET2ADD(IAC, EOR);
+ netflush(); /* try to move along as quickly as ... */
+ }
+ return(origCount - count);
+}
+
+
+#if defined(unix) || defined(__APPLE__)
+ void
+inputAvailable(signo)
+ int signo;
+{
+ HaveInput = 1;
+ sigiocount++;
+}
+#endif /* defined(unix) || defined(__APPLE__) */
+
+ void
+outputPurge()
+{
+ (void) ttyflush(1);
+}
+
+
+/*
+ * The following routines are places where the various tn3270
+ * routines make calls into telnet.c.
+ */
+
+/*
+ * DataToTerminal - queue up some data to go to terminal.
+ *
+ * Note: there are people who call us and depend on our processing
+ * *all* the data at one time (thus the select).
+ */
+
+ int
+DataToTerminal(buffer, count)
+ register char *buffer; /* where the data is */
+ register int count; /* how much to send */
+{
+ register int c;
+ int origCount;
+
+ origCount = count;
+
+ while (count) {
+ if (TTYROOM() == 0) {
+#if defined(unix) || defined(__APPLE__)
+ fd_set o;
+
+ FD_ZERO(&o);
+#endif /* defined(unix) || defined(__APPLE__) */
+ (void) ttyflush(0);
+ while (TTYROOM() == 0) {
+#if defined(unix) || defined(__APPLE__)
+ FD_SET(tout, &o);
+ (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
+ (struct timeval *) 0);
+#endif /* defined(unix) || defined(__APPLE__) */
+ (void) ttyflush(0);
+ }
+ }
+ c = TTYROOM();
+ if (c > count) {
+ c = count;
+ }
+ ring_supply_data(&ttyoring, buffer, c);
+ count -= c;
+ buffer += c;
+ }
+ return(origCount);
+}
+
+
+/*
+ * Push3270 - Try to send data along the 3270 output (to screen) direction.
+ */
+
+ int
+Push3270()
+{
+ int save = ring_full_count(&netiring);
+
+ if (save) {
+ if (Ifrontp+save > Ibuf+sizeof Ibuf) {
+ if (Ibackp != Ibuf) {
+ memmove(Ibuf, Ibackp, Ifrontp-Ibackp);
+ Ifrontp -= (Ibackp-Ibuf);
+ Ibackp = Ibuf;
+ }
+ }
+ if (Ifrontp+save < Ibuf+sizeof Ibuf) {
+ (void)telrcv();
+ }
+ }
+ return save != ring_full_count(&netiring);
+}
+
+
+/*
+ * Finish3270 - get the last dregs of 3270 data out to the terminal
+ * before quitting.
+ */
+
+ void
+Finish3270()
+{
+ while (Push3270() || !DoTerminalOutput()) {
+#if defined(unix) || defined(__APPLE__)
+ HaveInput = 0;
+#endif /* defined(unix) || defined(__APPLE__) */
+ ;
+ }
+}
+
+
+/* StringToTerminal - output a null terminated string to the terminal */
+
+ void
+StringToTerminal(s)
+ char *s;
+{
+ int count;
+
+ count = strlen(s);
+ if (count) {
+ (void) DataToTerminal(s, count); /* we know it always goes... */
+ }
+}
+
+
+#if ((!defined(NOT43)) || defined(PUTCHAR))
+/* _putchar - output a single character to the terminal. This name is so that
+ * curses(3x) can call us to send out data.
+ */
+
+ void
+_putchar(c)
+ char c;
+{
+#if defined(sun) /* SunOS 4.0 bug */
+ c &= 0x7f;
+#endif /* defined(sun) */
+ if (cursesdata) {
+ Dump('>', &c, 1);
+ }
+ if (!TTYROOM()) {
+ (void) DataToTerminal(&c, 1);
+ } else {
+ TTYADD(c);
+ }
+}
+#endif /* ((!defined(NOT43)) || defined(PUTCHAR)) */
+
+ void
+SetIn3270()
+{
+ if (Sent3270TerminalType && my_want_state_is_will(TELOPT_BINARY)
+ && my_want_state_is_do(TELOPT_BINARY) && !donebinarytoggle) {
+ if (!In3270) {
+ In3270 = 1;
+ Init3270(); /* Initialize 3270 functions */
+ /* initialize terminal key mapping */
+ InitTerminal(); /* Start terminal going */
+ setconnmode(0);
+ }
+ } else {
+ if (In3270) {
+ StopScreen(1);
+ In3270 = 0;
+ Stop3270(); /* Tell 3270 we aren't here anymore */
+ setconnmode(0);
+ }
+ }
+}
+
+/*
+ * tn3270_ttype()
+ *
+ * Send a response to a terminal type negotiation.
+ *
+ * Return '0' if no more responses to send; '1' if a response sent.
+ */
+
+ int
+tn3270_ttype()
+{
+ /*
+ * Try to send a 3270 type terminal name. Decide which one based
+ * on the format of our screen, and (in the future) color
+ * capaiblities.
+ */
+ InitTerminal(); /* Sets MaxNumberColumns, MaxNumberLines */
+ if ((MaxNumberLines >= 24) && (MaxNumberColumns >= 80)) {
+ Sent3270TerminalType = 1;
+ if ((MaxNumberLines >= 27) && (MaxNumberColumns >= 132)) {
+ MaxNumberLines = 27;
+ MaxNumberColumns = 132;
+ sb_terminal[SBTERMMODEL] = '5';
+ } else if (MaxNumberLines >= 43) {
+ MaxNumberLines = 43;
+ MaxNumberColumns = 80;
+ sb_terminal[SBTERMMODEL] = '4';
+ } else if (MaxNumberLines >= 32) {
+ MaxNumberLines = 32;
+ MaxNumberColumns = 80;
+ sb_terminal[SBTERMMODEL] = '3';
+ } else {
+ MaxNumberLines = 24;
+ MaxNumberColumns = 80;
+ sb_terminal[SBTERMMODEL] = '2';
+ }
+ NumberLines = 24; /* before we start out... */
+ NumberColumns = 80;
+ ScreenSize = NumberLines*NumberColumns;
+ if ((MaxNumberLines*MaxNumberColumns) > MAXSCREENSIZE) {
+ ExitString("Programming error: MAXSCREENSIZE too small.\n",
+ 1);
+ /*NOTREACHED*/
+ }
+ printsub('>', sb_terminal+2, sizeof sb_terminal-2);
+ ring_supply_data(&netoring, sb_terminal, sizeof sb_terminal);
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+#if defined(unix) || defined(__APPLE__)
+ int
+settranscom(argc, argv)
+ int argc;
+ char *argv[];
+{
+ int i;
+
+ if (argc == 1 && transcom) {
+ transcom = 0;
+ }
+ if (argc == 1) {
+ return 1;
+ }
+ transcom = tline;
+ (void) strcpy(transcom, argv[1]);
+ for (i = 2; i < argc; ++i) {
+ (void) strcat(transcom, " ");
+ (void) strcat(transcom, argv[i]);
+ }
+ return 1;
+}
+#endif /* defined(unix) || defined(__APPLE__) */
+
+#endif /* defined(TN3270) */
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