624 lines
12 KiB
C
624 lines
12 KiB
C
/* $NetBSD: prt3270.c,v 1.3 1997/01/09 20:22:44 tls Exp $ */
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/*-
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* Copyright (c) 1988 The Regents of the University of California.
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* 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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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1988 The Regents of the University of California.\n\
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All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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/*static char sccsid[] = "from: @(#)prt3270.c 4.2 (Berkeley) 4/26/91";*/
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static char rcsid[] = "$NetBSD: prt3270.c,v 1.3 1997/01/09 20:22:44 tls Exp $";
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#endif /* not lint */
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#if defined(unix)
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#endif
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#include <stdio.h>
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#include <ctype.h>
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#include "../general/general.h"
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#include "../api/asc_ebc.h"
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#include "../ctlr/hostctlr.h"
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#include "../ctlr/screen.h"
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#include "../ctlr/function.h"
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#include "../api/astosc.h"
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#include "../general/globals.h"
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#include "../ctlr/kbd.out"
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int NumberColumns = 80;
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int direction;
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int column = 1;
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int indenting = 0;
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int direction = '?';
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unsigned char printBuffer[200], *print = printBuffer;
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#define ColsLeft() (79-column) /* A little room for error */
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void
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putSpace()
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{
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extern void Column1();
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unsigned char *ourPrint = print;
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print = printBuffer; /* For mutual calls */
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*ourPrint = 0;
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if (ColsLeft() < 0) {
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Column1();
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}
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if (column != (indenting*8+1)) {
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putchar(' ');
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} else {
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int i;
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putchar(direction);
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putchar(' ');
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for (i = 0; i < indenting; i++) {
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putchar('\t');
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}
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}
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printf("%s", printBuffer);
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column += strlen(printBuffer);
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}
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void
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Column1()
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{
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if (print != printBuffer) {
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putSpace();
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}
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if (column != (indenting*8+1)) {
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putchar('\n');
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column = indenting*8+1;
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}
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}
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void
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Indent()
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{
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if ((column != (indenting*8+1)) || (print != printBuffer)) {
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Column1();
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}
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indenting++;
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column = indenting*8+1;
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}
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void
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Undent()
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{
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if ((column != (indenting*8+1)) || (print != printBuffer)) {
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Column1();
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}
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indenting--;
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if (indenting < 0) {
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fflush(stdout);
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fprintf(stderr, "INTERNAL ERROR: indenting < 0.\n");
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fflush(stderr);
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} else {
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column = indenting*8+1;
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}
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}
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void
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putChar(character)
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int character;
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{
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*print++ = character;
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column++;
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}
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void
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putstr(s)
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char *s;
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{
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while (*s) {
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putChar(*s++);
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}
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}
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void
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put2hex(i)
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int i;
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{
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char place[40];
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sprintf(place, "%02x", i);
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putstr(place);
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}
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void
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putdecimal(i)
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int i;
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{
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char place[40];
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sprintf(place, "%d", i);
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putstr(place);
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}
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void
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puthex(i)
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int i;
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{
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char place[40];
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sprintf(place, "%x", i);
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putstr(place);
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}
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void
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putEChar(character)
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int character;
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{
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putChar(ebc_asc[character]);
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if (ColsLeft() < 10) {
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Column1();
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}
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}
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void
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PrintAid(i)
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int i;
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{
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struct astosc *this;
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for (this = &astosc[0]; this <= &astosc[highestof(astosc)]; this++) {
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if (this->function == FCN_AID) {
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int j;
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switch (this->shiftstate) {
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case 0:
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j = 0;
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break;
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case SHIFT_UPSHIFT:
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j = 1;
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break;
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case SHIFT_ALT:
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j = 2;
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break;
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case (SHIFT_UPSHIFT|SHIFT_ALT):
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j = 3;
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break;
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default:
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fprintf(stderr, "Bad shiftstate 0x%x.\n", this->shiftstate);
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exit(1);
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}
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if (hits[this->scancode].hit[j].code == i) {
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putstr(this->name);
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return;
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}
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}
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}
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putstr("Unknown AID 0x");
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put2hex(i);
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}
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void
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PrintAddr(i)
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int i;
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{
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if (ColsLeft() < 9) {
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Column1();
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}
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putChar('(');
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putdecimal(ScreenLine(i));
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putChar(',');
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putdecimal(ScreenLineOffset(i));
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putChar(')');
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}
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/* returns the number of characters consumed */
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int
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DataFromNetwork(buffer, count, control)
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register unsigned char *buffer; /* what the data is */
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register int count; /* and how much there is */
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int control; /* this buffer ended block? */
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{
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int origCount;
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register int c;
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register int i;
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static int Command;
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static int Wcc;
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static int LastWasTerminated = 1; /* was "control" = 1 last time? */
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if (count == 0) {
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Column1();
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return 0;
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}
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origCount = count;
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if (LastWasTerminated) {
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if (count < 2) {
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if (count == 0) {
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fflush(stdout);
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fprintf(stderr, "Short count received from host!\n");
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fflush(stderr);
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return(count);
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}
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Command = buffer[0];
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switch (Command) { /* This had better be a read command */
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case CMD_READ_MODIFIED:
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putstr("read_modified command\n");
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break;
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case CMD_SNA_READ_MODIFIED:
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putstr("sna_read_modified command\n");
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break;
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case CMD_SNA_READ_MODIFIED_ALL:
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putstr("sna_read_modified_all command\n");
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break;
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case CMD_READ_BUFFER:
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putstr("read_buffer command\n");
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break;
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case CMD_SNA_READ_BUFFER:
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putstr("sna_read_buffer command\n");
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break;
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default:
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break;
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}
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return(1); /* We consumed everything */
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}
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Command = buffer[0];
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Wcc = buffer[1];
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switch (Command) {
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case CMD_ERASE_WRITE:
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putstr("erase write command ");
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break;
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case CMD_ERASE_WRITE_ALTERNATE:
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putstr("erase write alternate command ");
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break;
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case CMD_SNA_ERASE_WRITE:
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putstr("sna erase write command ");
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break;
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case CMD_SNA_ERASE_WRITE_ALTERNATE:
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putstr("erase write alternate command ");
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break;
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case CMD_ERASE_ALL_UNPROTECTED:
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putstr("erase all unprotected command ");
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break;
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case CMD_SNA_ERASE_ALL_UNPROTECTED:
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putstr("sna erase write command ");
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break;
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case CMD_WRITE:
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putstr("write command ");
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break;
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case CMD_SNA_WRITE:
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putstr("sna write command ");
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break;
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default:
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putstr("Unexpected command code 0x");
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puthex(Command);
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putstr(" received.");
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Column1();
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break;
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}
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putstr("WCC is 0x");
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puthex(Wcc);
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Column1();
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count -= 2; /* strip off command and wcc */
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buffer += 2;
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}
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LastWasTerminated = 0; /* then, reset at end... */
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while (count) {
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count--;
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c = *buffer++;
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if (IsOrder(c)) {
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/* handle an order */
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switch (c) {
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# define Ensure(x) if (count < x) { \
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if (!control) { \
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return(origCount-(count+1)); \
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} else { \
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/* XXX - should not occur */ \
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count = 0; \
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break; \
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} \
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}
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case ORDER_SF:
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Ensure(1);
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c = *buffer++;
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count--;
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putstr("SF (0x");
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put2hex(c);
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putstr(") ");
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break;
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case ORDER_SBA:
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Ensure(2);
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i = buffer[0];
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c = buffer[1];
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buffer += 2;
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count -= 2;
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putstr("SBA to ");
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PrintAddr(Addr3270(i,c));
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putSpace();
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break;
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case ORDER_IC:
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putstr("IC");
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putSpace();
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break;
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case ORDER_PT:
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putstr("PT");
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putSpace();
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break;
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case ORDER_RA:
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Ensure(3);
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i = Addr3270(buffer[0], buffer[1]);
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c = buffer[2];
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buffer += 3;
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count -= 3;
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putstr("RA to ");
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PrintAddr(i);
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putstr(" of 0x");
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put2hex(c);
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putSpace();
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break;
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case ORDER_EUA: /* (from [here,there), ie: half open interval] */
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Ensure(2);
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putstr("EUA to ");
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PrintAddr(Addr3270(buffer[0], buffer[1]));
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putSpace();
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buffer += 2;
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count -= 2;
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break;
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case ORDER_YALE: /* special YALE defined order */
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Ensure(2); /* need at least two characters */
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putstr("YALE order");
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putSpace();
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break;
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default:
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putstr("UNKNOWN ORDER: 0x");
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put2hex(c);
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putSpace();
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break;
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}
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if (count < 0) {
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count = 0;
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}
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} else {
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/* Data comes in large clumps - take it all */
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putstr("DATA:");
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Indent();
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putEChar(c);
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c = *buffer;
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while (count && !IsOrder(c)) {
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putEChar(c);
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count--;
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buffer++;
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c = *buffer;
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}
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Undent();
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}
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}
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LastWasTerminated = control;
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return origCount - count;
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}
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int
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DataToNetwork(buffer, count, control)
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unsigned char *buffer;
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int count;
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int control;
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{
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#define NEED_AID 0
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#define JUST_GOT_AID 1
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#define DATA 2
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#define DATA_CONTINUE 3
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static int state = NEED_AID;
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static int aid;
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int origCount = count;
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if (count == 0) {
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if (control) {
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state = NEED_AID;
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}
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Column1();
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return 0;
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}
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switch (state) {
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case NEED_AID:
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aid = buffer[0];
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buffer++;
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count--;
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PrintAid(aid);
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putSpace();
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if (aid == AID_TREQ) {
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state = DATA;
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} else {
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state = JUST_GOT_AID;
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}
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return origCount - count + DataToNetwork(buffer, count, control);
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case JUST_GOT_AID:
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Ensure(2);
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PrintAddr(Addr3270(buffer[0], buffer[1]));
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putSpace();
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buffer += 2;
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count -= 2;
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state = DATA;
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return origCount - count + DataToNetwork(buffer, count, control);
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case DATA:
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case DATA_CONTINUE:
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while (count) {
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if (*buffer == ORDER_SBA) {
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if (state == DATA_CONTINUE) {
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Undent();
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state = DATA;
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}
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putstr("SBA ");
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PrintAddr(Addr3270(buffer[1], buffer[2]));
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putSpace();
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buffer += 3;
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count -= 3;
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} else {
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if (state == DATA) {
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putstr("DATA:");
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Indent();
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state = DATA_CONTINUE;
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}
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putEChar(*buffer);
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buffer++;
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count--;
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}
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}
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if (control) {
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if (state == DATA_CONTINUE) {
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Undent();
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}
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state = NEED_AID;
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}
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return origCount-count;
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}
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}
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int
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GetXValue(c)
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int c;
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{
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if (!isascii(c)) {
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fflush(stdout);
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fprintf(stderr, "Non-hex digit 0x%x.\n");
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fflush(stderr);
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return 0;
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} else {
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if (islower(c)) {
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return (c-'a')+10;
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} else if (isupper(c)) {
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return (c-'A')+10;
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} else {
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return c-'0';
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}
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}
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}
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unsigned char outbound[8192], inbound[8192],
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*outnext = outbound, *innext = inbound, *p = 0;
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void
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termblock(old, new, control)
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int old,
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new; /* old and new directions */
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{
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int count;
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if (p) {
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if (old == '<') {
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outnext = p;
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count = DataFromNetwork(outbound, outnext-outbound, control);
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if (outbound+count == outnext) {
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outnext = outbound;
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} else {
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memcpy(outbound, outbound+count, outnext-(outbound+count));
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outnext = outbound+count;
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}
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} else {
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innext = p;
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count = DataToNetwork(inbound, innext-inbound, control);
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if (inbound+count == innext) {
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innext = inbound;
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} else {
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memcpy(inbound, inbound+count, innext-(inbound+count));
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innext = inbound+count;
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}
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}
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}
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if (new == '<') {
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p = outnext;
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} else if (new == '>') {
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p = innext;
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} else {
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fprintf(stderr, "Bad direction character '%c'.\n", new);
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exit(1);
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}
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}
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main()
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{
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int location;
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char new;
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int c, c1;
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memset(Orders, 0, sizeof Orders);
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Orders[ORDER_SF] = Orders[ORDER_SBA] = Orders[ORDER_IC]
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= Orders[ORDER_PT] = Orders[ORDER_RA] = Orders[ORDER_EUA]
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= Orders[ORDER_YALE] = 1;
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while (scanf("%c 0x%x\t", &new, &location) != EOF) {
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if (new != direction) {
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termblock(direction, new, 0);
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direction = new;
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}
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while (((c = getchar()) != EOF) && (c != '\n') && (isxdigit(c))) {
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#define NORMAL 0
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#define GOT0XFF 0xff
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static int state = NORMAL;
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c1 = getchar();
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c = (GetXValue(c) << 4) + GetXValue(c1);
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switch (state) {
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case NORMAL:
|
|
if (c == 0xff) {
|
|
state = GOT0XFF;
|
|
} else {
|
|
*p++ = c;
|
|
}
|
|
break;
|
|
case GOT0XFF:
|
|
if (c == 0xef) {
|
|
termblock(direction, direction, 1);
|
|
} else {
|
|
*p++ = 0xff;
|
|
*p++ = c;
|
|
}
|
|
state = NORMAL;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|