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NetBSD/usr.bin/tn3270/tools/prt3270/prt3270.c

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/* $NetBSD: prt3270.c,v 1.7 2002/06/13 23:41:23 wiz Exp $ */
/*-
* Copyright (c) 1988 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>
#if defined(__COPYRIGHT) && !defined(lint)
__COPYRIGHT(
"@(#) Copyright (c) 1988 The Regents of the University of California.\n\
All rights reserved.\n");
#endif /* not lint */
#if defined(__RCSID) && !defined(lint)
#if 0
static char sccsid[] = "@(#)prt3270.c 4.2 (Berkeley) 4/26/91";
#else
__RCSID("$NetBSD: prt3270.c,v 1.7 2002/06/13 23:41:23 wiz Exp $");
#endif
#endif /* not lint */
#include <stdio.h>
#include <ctype.h>
#define DEFINING_INSTANCES
#include "../general/general.h"
#include "../api/asc_ebc.h"
#include "../ctlr/hostctlr.h"
#include "../ctlr/screen.h"
#include "../ctlr/function.h"
#include "../api/astosc.h"
#include "../general/globals.h"
#include "kbd.out"
int NumberColumns = 80;
int direction;
int column = 1;
int indenting = 0;
int direction = '?';
unsigned char printBuffer[200], *print = printBuffer;
#define ColsLeft() (79-column) /* A little room for error */
/* prt3270.c */
void putSpace(void);
void Column1(void);
void Indent(void);
void Undent(void);
void putChar(int);
void putstr(char *);
void put2hex(int);
void putdecimal(int);
void puthex(int);
void putEChar(int);
void PrintAid(int);
void PrintAddr(int);
int DataFromNetwork(unsigned char *, int, int);
int DataToNetwork(unsigned char *, int, int);
int GetXValue(int);
void termblock(int, int , int);
int main(int, char *[]);
void
putSpace()
{
unsigned char *ourPrint = print;
print = printBuffer; /* For mutual calls */
*ourPrint = 0;
if (ColsLeft() < 0) {
Column1();
}
if (column != (indenting*8+1)) {
putchar(' ');
} else {
int i;
putchar(direction);
putchar(' ');
for (i = 0; i < indenting; i++) {
putchar('\t');
}
}
printf("%s", printBuffer);
column += strlen(printBuffer);
}
void
Column1()
{
if (print != printBuffer) {
putSpace();
}
if (column != (indenting*8+1)) {
putchar('\n');
column = indenting*8+1;
}
}
void
Indent()
{
if ((column != (indenting*8+1)) || (print != printBuffer)) {
Column1();
}
indenting++;
column = indenting*8+1;
}
void
Undent()
{
if ((column != (indenting*8+1)) || (print != printBuffer)) {
Column1();
}
indenting--;
if (indenting < 0) {
fflush(stdout);
fprintf(stderr, "INTERNAL ERROR: indenting < 0.\n");
fflush(stderr);
} else {
column = indenting*8+1;
}
}
void
putChar(character)
int character;
{
*print++ = character;
column++;
}
void
putstr(s)
char *s;
{
while (*s) {
putChar(*s++);
}
}
void
put2hex(i)
int i;
{
char place[40];
sprintf(place, "%02x", i);
putstr(place);
}
void
putdecimal(i)
int i;
{
char place[40];
sprintf(place, "%d", i);
putstr(place);
}
void
puthex(i)
int i;
{
char place[40];
sprintf(place, "%x", i);
putstr(place);
}
void
putEChar(character)
int character;
{
putChar(ebc_asc[character]);
if (ColsLeft() < 10) {
Column1();
}
}
void
PrintAid(i)
int i;
{
struct astosc *this;
for (this = &astosc[0]; this <= &astosc[highestof(astosc)]; this++) {
if (this->function == FCN_AID) {
int j;
switch (this->shiftstate) {
case 0:
j = 0;
break;
case SHIFT_UPSHIFT:
j = 1;
break;
case SHIFT_ALT:
j = 2;
break;
case (SHIFT_UPSHIFT|SHIFT_ALT):
j = 3;
break;
default:
fprintf(stderr, "Bad shiftstate 0x%x.\n", this->shiftstate);
exit(1);
}
if (hits[this->scancode].hit[j].code == i) {
putstr(this->name);
return;
}
}
}
putstr("Unknown AID 0x");
put2hex(i);
}
void
PrintAddr(i)
int i;
{
if (ColsLeft() < 9) {
Column1();
}
putChar('(');
putdecimal(ScreenLine(i));
putChar(',');
putdecimal(ScreenLineOffset(i));
putChar(')');
}
/* returns the number of characters consumed */
int
DataFromNetwork(buffer, count, control)
unsigned char *buffer; /* what the data is */
int count; /* and how much there is */
int control; /* this buffer ended block? */
{
int origCount;
int c;
int i;
static int Command;
static int Wcc;
static int LastWasTerminated = 1; /* was "control" = 1 last time? */
if (count == 0) {
Column1();
return 0;
}
origCount = count;
if (LastWasTerminated) {
if (count < 2) {
if (count == 0) {
fflush(stdout);
fprintf(stderr, "Short count received from host!\n");
fflush(stderr);
return(count);
}
Command = buffer[0];
switch (Command) { /* This had better be a read command */
case CMD_READ_MODIFIED:
putstr("read_modified command\n");
break;
case CMD_SNA_READ_MODIFIED:
putstr("sna_read_modified command\n");
break;
case CMD_SNA_READ_MODIFIED_ALL:
putstr("sna_read_modified_all command\n");
break;
case CMD_READ_BUFFER:
putstr("read_buffer command\n");
break;
case CMD_SNA_READ_BUFFER:
putstr("sna_read_buffer command\n");
break;
default:
break;
}
return(1); /* We consumed everything */
}
Command = buffer[0];
Wcc = buffer[1];
switch (Command) {
case CMD_ERASE_WRITE:
putstr("erase write command ");
break;
case CMD_ERASE_WRITE_ALTERNATE:
putstr("erase write alternate command ");
break;
case CMD_SNA_ERASE_WRITE:
putstr("sna erase write command ");
break;
case CMD_SNA_ERASE_WRITE_ALTERNATE:
putstr("erase write alternate command ");
break;
case CMD_ERASE_ALL_UNPROTECTED:
putstr("erase all unprotected command ");
break;
case CMD_SNA_ERASE_ALL_UNPROTECTED:
putstr("sna erase write command ");
break;
case CMD_WRITE:
putstr("write command ");
break;
case CMD_SNA_WRITE:
putstr("sna write command ");
break;
default:
putstr("Unexpected command code 0x");
puthex(Command);
putstr(" received.");
Column1();
break;
}
putstr("WCC is 0x");
puthex(Wcc);
Column1();
count -= 2; /* strip off command and wcc */
buffer += 2;
}
LastWasTerminated = 0; /* then, reset at end... */
while (count) {
count--;
c = *buffer++;
if (IsOrder(c)) {
/* handle an order */
switch (c) {
# define Ensure(x) if (count < x) { \
if (!control) { \
return(origCount-(count+1)); \
} else { \
/* XXX - should not occur */ \
count = 0; \
break; \
} \
}
case ORDER_SF:
Ensure(1);
c = *buffer++;
count--;
putstr("SF (0x");
put2hex(c);
putstr(") ");
break;
case ORDER_SBA:
Ensure(2);
i = buffer[0];
c = buffer[1];
buffer += 2;
count -= 2;
putstr("SBA to ");
PrintAddr(Addr3270(i,c));
putSpace();
break;
case ORDER_IC:
putstr("IC");
putSpace();
break;
case ORDER_PT:
putstr("PT");
putSpace();
break;
case ORDER_RA:
Ensure(3);
i = Addr3270(buffer[0], buffer[1]);
c = buffer[2];
buffer += 3;
count -= 3;
putstr("RA to ");
PrintAddr(i);
putstr(" of 0x");
put2hex(c);
putSpace();
break;
case ORDER_EUA: /* (from [here,there), ie: half open interval] */
Ensure(2);
putstr("EUA to ");
PrintAddr(Addr3270(buffer[0], buffer[1]));
putSpace();
buffer += 2;
count -= 2;
break;
case ORDER_YALE: /* special YALE defined order */
Ensure(2); /* need at least two characters */
putstr("YALE order");
putSpace();
break;
default:
putstr("UNKNOWN ORDER: 0x");
put2hex(c);
putSpace();
break;
}
if (count < 0) {
count = 0;
}
} else {
/* Data comes in large clumps - take it all */
putstr("DATA:");
Indent();
putEChar(c);
c = *buffer;
while (count && !IsOrder(c)) {
putEChar(c);
count--;
buffer++;
c = *buffer;
}
Undent();
}
}
LastWasTerminated = control;
return origCount - count;
}
int
DataToNetwork(buffer, count, control)
unsigned char *buffer;
int count;
int control;
{
#define NEED_AID 0
#define JUST_GOT_AID 1
#define DATA 2
#define DATA_CONTINUE 3
static int state = NEED_AID;
static int aid;
int origCount = count;
if (count == 0) {
if (control) {
state = NEED_AID;
}
Column1();
return 0;
}
switch (state) {
case NEED_AID:
aid = buffer[0];
buffer++;
count--;
PrintAid(aid);
putSpace();
if (aid == AID_TREQ) {
state = DATA;
} else {
state = JUST_GOT_AID;
}
return origCount - count + DataToNetwork(buffer, count, control);
case JUST_GOT_AID:
Ensure(2);
PrintAddr(Addr3270(buffer[0], buffer[1]));
putSpace();
buffer += 2;
count -= 2;
state = DATA;
return origCount - count + DataToNetwork(buffer, count, control);
case DATA:
case DATA_CONTINUE:
while (count) {
if (*buffer == ORDER_SBA) {
if (state == DATA_CONTINUE) {
Undent();
state = DATA;
}
putstr("SBA ");
PrintAddr(Addr3270(buffer[1], buffer[2]));
putSpace();
buffer += 3;
count -= 3;
} else {
if (state == DATA) {
putstr("DATA:");
Indent();
state = DATA_CONTINUE;
}
putEChar(*buffer);
buffer++;
count--;
}
}
if (control) {
if (state == DATA_CONTINUE) {
Undent();
}
state = NEED_AID;
}
return origCount-count;
}
return 0;
}
int
GetXValue(c)
int c;
{
if (!isascii(c)) {
fflush(stdout);
fprintf(stderr, "Non-hex digit 0x%x.\n", c);
fflush(stderr);
return 0;
} else {
if (islower(c)) {
return (c-'a')+10;
} else if (isupper(c)) {
return (c-'A')+10;
} else {
return c-'0';
}
}
}
unsigned char outbound[8192], inbound[8192],
*outnext = outbound, *innext = inbound, *p = 0;
void
termblock(old, new, control)
int old,
new; /* old and new directions */
{
int count;
if (p) {
if (old == '<') {
outnext = p;
count = DataFromNetwork(outbound, outnext-outbound, control);
if (outbound+count == outnext) {
outnext = outbound;
} else {
memcpy(outbound, outbound+count, outnext-(outbound+count));
outnext = outbound+count;
}
} else {
innext = p;
count = DataToNetwork(inbound, innext-inbound, control);
if (inbound+count == innext) {
innext = inbound;
} else {
memcpy(inbound, inbound+count, innext-(inbound+count));
innext = inbound+count;
}
}
}
if (new == '<') {
p = outnext;
} else if (new == '>') {
p = innext;
} else {
fprintf(stderr, "Bad direction character '%c'.\n", new);
exit(1);
}
}
int
main(argc, argv)
int argc;
char *argv[];
{
int location;
char new;
int c, c1;
memset(Orders, 0, sizeof Orders);
Orders[ORDER_SF] = Orders[ORDER_SBA] = Orders[ORDER_IC]
= Orders[ORDER_PT] = Orders[ORDER_RA] = Orders[ORDER_EUA]
= Orders[ORDER_YALE] = 1;
while (scanf("%c 0x%x\t", &new, &location) != EOF) {
if (new != direction) {
termblock(direction, new, 0);
direction = new;
}
while (((c = getchar()) != EOF) && (c != '\n') && (isxdigit(c))) {
#define NORMAL 0
#define GOT0XFF 0xff
static int state = NORMAL;
c1 = getchar();
c = (GetXValue(c) << 4) + GetXValue(c1);
switch (state) {
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;
}
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