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ckoi31.c
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ckoi31.c
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/* C K O I 3 1 . C -- IBM 31x1 Emulation */
/*
Author: Jeffrey Altman <[email protected]>,
Secure Endpoints Inc., New York City.
Copyright (C) 1985, 2004, Trustees of Columbia University in the City of New
York.
*/
#include "ckcdeb.h"
#ifndef NOTERM
#ifdef NT
#include <windows.h>
#else /* NT */
#include <os2.h>
#undef COMMENT
#endif /* NT */
#include "ckcker.h"
#include "ckcasc.h"
#include "ckcuni.h"
#include "ckuusr.h"
#include "ckocon.h"
#include "ckoi31.h"
extern bool keyclick ;
extern int cursorena[], keylock, duplex, duplex_sav, screenon ;
extern int printon, aprint, uprint, xprint, cprint, seslog ;
extern int insertmode, tnlm ;
extern int escstate, debses, decscnm, tt_cursor ;
extern int tt_type, tt_type_mode, tt_max, tt_answer, tt_status[VNUM], tt_szchng[] ;
extern int tt_cols[], tt_rows[], tt_wrap ;
extern int wherex[], wherey[], margintop, marginbot ;
extern int marginbell, marginbellcol ;
extern char answerback[], htab[] ;
extern struct tt_info_rec tt_info[] ;
extern vtattrib attrib ;
extern unsigned char attribute;
extern char termessage[] ;
extern int autoscroll, protect ;
extern struct _vtG G[4];
extern struct _vtG *GL, *SSGL; /* GL and single shift GL */
extern struct _vtG *GR; /* GR */
extern int tcsl;
int i31_monitor = FALSE ;
int i31_xprint = 0;
int i31_lta = CR;
int
i31inc(void)
{
extern int pmask, cmask;
extern int tt_utf8;
int ch;
loop:
ch = ttinc(0);
if ( ch < 0 )
return ch;
if ( seslog )
logchar(ch);
/* Handle the UTF8 conversion if we are in that mode */
if ( tt_utf8 ) {
USHORT * ucs2 = NULL;
int rc = utf8_to_ucs2( (CHAR)(ch & 0xFF), &ucs2 );
if ( rc > 0 )
goto loop;
else if ( rc < 0 )
ch = 0xfffd;
else
ch = *ucs2;
}
if ( !xprint ) {
#ifndef NOXFER
autodown(ch);
#endif /* NOXFER */
autoexitchk(ch);
}
ch = ch & pmask & cmask;
debugses(ch);
if (printon && (is_xprint() || is_uprint()))
prtchar(ch);
return ch;
}
/* i31rdctrl - is used to read Set Control command sequences */
/* returns a bit flag of which parameters were received */
#define IBM_PA1 1
#define IBM_PA2 2
#define IBM_PA3 4
#define IBM_PA4 8
#define IBM_OP 16
#define GOT_PA1(x) (x & IBM_PA1)
#define GOT_PA2(x) (x & IBM_PA2)
#define GOT_PA3(x) (x & IBM_PA3)
#define GOT_PA4(x) (x & IBM_PA4)
#define GOT_OP(x) (x & IBM_OP)
#define BIT1 0x01
#define BIT2 0x02
#define BIT3 0x04
#define BIT4 0x08
#define BIT5 0x10
#define BIT6 0x20
#define BIT7 0x40
#define BIT8 0x80
int
i31rdctrl( int m, int * pa1, int * pa2, int * pa3, int * pa4, int * op )
{
int n=0;
int *p=NULL;
if ( m >= 1 ) {
*pa1 = i31inc();
if ( (*pa1) < 0 )
return(n);
n += IBM_PA1;
if ( m >= 2 ) {
if ( (*pa1 & 0x60) == 0x20 ) {
*pa2 = i31inc();
if ( (*pa2) < 0 )
return(n);
n += IBM_PA2;
}
if ( m >= 3 ) {
if ( (*pa2 & 0x60) == 0x20 ) {
*pa3 = i31inc();
if ( (*pa3) < 0 )
return(n);
n += IBM_PA3;
}
if ( m >= 4 ) {
if ( (*pa3 & 0x60) == 0x20 ) {
*pa4 = i31inc();
if ( (*pa4) < 0 )
return(n);
n += IBM_PA4;
}
}
}
}
/* Now take care of op */
switch ( m ) {
case 1:
p = pa1;
break;
case 2:
p = pa2;
break;
case 3:
p = pa3;
break;
case 4:
p = pa4;
break;
}
if ( (*p & 0x60) == 0x20 ) {
*op = i31inc();
if ( (*op) < 0 )
return(n);
n += IBM_OP;
}
}
return(n);
}
void
i31ctrl( int ch )
{
int i,j;
if ( !cprint && xprint ) {
switch ( ch ) {
case DLE: {
int nextch = i31inc() ;
switch ( nextch ) {
case DC2: /* Begin Transparent Print */
if ( debses )
break;
i31_xprint++;
if ( i31_xprint > 0 ) {
xprint = TRUE;
if ( !printon )
printeron();
}
/* Now that we have increased our counter, pass it on */
prtchar(ch);
prtchar(nextch);
break;
case DC4: /* End Transparent Print */
if ( debses )
break;
if ( i31_xprint > 0 )
i31_xprint--;
if ( !i31_xprint ) {
xprint = FALSE ;
if ( !uprint && !xprint && !cprint && !aprint && printon )
printeroff();
}
if ( i31_xprint > 0 ) {
/* we are not done yet, pass it on */
prtchar(ch);
prtchar(nextch) ;
}
break;
default:
prtchar(ch);
prtchar(nextch) ;
break;
}
break;
}
default:
prtchar(ch);
break;
}
} else {
switch ( ch ) {
case SOH:
break;
case STX:
break;
case ETX:
break;
case EOT:
break;
case ENQ: {
break;
}
case ACK:
break;
case BEL: /* Sound bell */
if ( debses )
break;
bleep(BP_BEL);
break;
case BS:
/* cursor left (backspace) */
if ( debses )
break;
cursorleft(0) ;
break;
case HT:
/* Tabulate cursor */
if ( debses )
break;
i = wherex[VTERM];
if (i < VscrnGetWidth(VTERM))
{
do {
i++;
cursorright(0);
} while ((htab[i] != 'T') &&
(i <= VscrnGetWidth(VTERM)-1));
VscrnIsDirty(VTERM);
}
break;
case LF:
/* cursor down; scroll */
if ( debses )
break;
wrtch(LF);
break;
case VT:
break;
case FF:
break;
case CR:
/* cursor to start of line */
if ( debses )
break;
wrtch(CR);
break;
case SO:
/* 3161- Select primary character set */
if ( debses )
break;
GL = &G[0] ;
break;
case SI:
/* 3161 - Select secondary character set */
if ( debses )
break;
GL = &G[1] ;
break;
case DLE: {
int nextch = i31inc() ;
switch ( nextch ) {
case STX:
if ( debses || i31_monitor )
break;
i31_monitor = TRUE ;
setdebses(TRUE);
break;
case ETX:
if ( !i31_monitor )
break;
i31_monitor = FALSE ;
setdebses(FALSE);
break;
case EOT:
if ( debses )
break;
strcpy( termessage, "Disconnected by host" ) ;
ttclos(0);
break;
case DC2: /* Begin Transparent Print */
if ( debses )
break;
i31_xprint++;
if ( i31_xprint > 0 ) {
xprint = TRUE;
if ( !printon )
printeron();
}
break;
case DC4: /* End Transparent Print */
if ( debses )
break;
if ( i31_xprint > 0 )
i31_xprint--;
if ( !i31_xprint ) {
xprint = FALSE ;
if ( !uprint && !xprint && !cprint && !aprint && printon )
printeroff();
}
break;
default:
i31ascii(nextch) ;
break;
}
break;
}
case DC1:
break;
case DC2:
break;
case DC3:
break;
case DC4:
break;
case NAK:
break;
case SYN:
break;
case ETB:
break;
case CAN:
break;
case XEM:
break;
case SUB:
break;
case ESC:
/* initiate escape sequence */
escstate = ES_GOTESC ;
break;
case XFS:
break;
case XGS:
break;
case XRS:
break;
case US:
break;
}
} /* xprint */
}
void
i31ascii( int ch )
{
int i,j,k,n,x,y,z;
vtattrib attr ;
viocell blankvcell;
int ch2=0, ch3=0, pa=0, pa1=0, pa2=0, pa3=0, pa4=0, op=0;
char response[32]="";
if ( escstate == ES_GOTESC )/* Process character as part of an escstate sequence */
{
/* should never be able to get here if xprint is active */
if ( ch < SP ) {
escstate = ES_NORMAL ;
i31ctrl(ch) ;
}
else
{
escstate = ES_ESCSEQ ;
switch ( ch ) {
case '!': {
ch2 = i31inc() ;
switch ( ch2 ) {
case '6':
/* 3161 - Send terminal ID */
if ( debses )
break;
/* send ESC ! 6 pa ESC 6 LTA */
break;
case '7':
/* 3161 - Read Control 2 */
/* Machine Status of the 3151 */
if ( debses )
break;
break;
case '8':
/* 3161 - Send cursor line */
if ( debses )
break;
break;
case '9': {
/* 3161 - Set Control 2 */
/* Machine Status of the 3151 */
if ( debses )
break;
n = i31rdctrl( 2, &pa1, &pa2, &pa3, &pa4, &op );
if ( debses || n == 0 )
break;
if ( GOT_OP(n) ) {
if ( (op & BIT7|BIT6) == 0x60 )
switch ( (op & 0x1F) ) {
case 0x00: /* Replacement (default) */
break;
case 0x01: /* Logical OR */
break;
case 0x02: /* Logical AND */
break;
case 0x1F: /* Interpreted as the DEL character */
break;
}
}
/* The following lines must be merged in to the above */
/* switch to enable the replace|and|or functionality */
if ( GOT_PA1(n) ) {
/* Forcing Insert Line */
if ( pa1 & 0x10 )
; /* Enabled */
else
; /* Disabled (default) */
/* Enter Key */
if ( pa1 & 0x08 )
; /* Works as the Return key (default) */
else
; /* Works as the Send key */
/* CRT Saver */
if ( pa1 & 0x03 )
; /* 15 minutes */
else
; /* No saver (default) */
}
if ( GOT_PA2(n) ) {
/* Forcing Insert Character */
if ( pa2 & 0x10 )
; /* Enabled */
else
; /* Disabled (default) */
/* Set Field Attribute (pa2 & 0x08) */
/* should always be 1 */
/* Operator Initiated Transparent Mode */
if ( pa2 & 0x03 )
; /* Disabled */
else
; /* Enabled (default) */
/* New Line */
if ( pa2 & 0x02 )
; /* Return key generates CR (default) */
else
; /* Return key generates CR/LF */
}
break;
}
case 'L':
/* 3161 - Clear all */
if ( debses )
break;
clrscreen( VTERM, NUL );
lgotoxy(VTERM,1,1); /* and home the cursor */
break;
case 'M':
/* Reverse Index command */
if ( debses )
break;
break;
case 'q':
/* 3161 - Select active partition */
/* Affects the viewport which local operator */
/* commands affect. Cursor moves to active partition */
pa = i31inc();
if ( debses )
break;
switch ( pa ) {
case 'A': /* viewport 1 */
break;
case 'B': /* viewport 2 */
break;
case 'C': /* viewport 3 */
break;
}
break;
case 's':
/* 3161 - Reset keyboard and clear modified */
/* data tag */
if ( debses )
break;
break;
case 'S':
/* Reset Keyboard Lock and MDT Bit Command */
if ( debses )
break;
break;
case '=': {
/* 3161 - Program function key definition */
int fn=0,fnx=0,ff=0;
char fp[128]="";
fn = i31inc();
if ( fn & (BIT5|BIT4|BIT3|BIT2|BIT1) == 0x00 )
fnx = i31inc();
ff = i31inc();
i = 0;
fp[i] = i31inc();
do {
fp[++i] = i31inc();
} while ( fp[i-1] != ESC && fp[i] != '=' && i<65 );
fp[i-1] = NUL;
if ( debses )
break;
/* The function key to be assigned is equal to */
/* (fn & (BIT5|BIT4|BIT3|BIT2|BIT1)) || */
/* (32 + (fnx & (BIT5|BIT4|BIT3|BIT2|BIT1))) */
/* (ff & BIT1) specifies whether the string is */
/* for local display (1) or remote transmission (0) */
break;
}
default:
escstate = ES_NORMAL ;
i31ascii(ch);
}
break;
}
case SP: {
ch2 = i31inc() ;
switch ( ch2 ) {
case ':':
/* Begin Outbound Trace mode */
if ( debses )
break;
cprint = TRUE;
if ( !printon )
printeron();
break;
case ';':
/* End Outbound Trace mode */
if ( debses || !cprint )
break;
cprint = FALSE;
if ( !uprint && !xprint && !cprint && !aprint && printon )
printeroff();
break;
case '1':
/* 3161 - Clear all tab stops */
if ( debses )
break;
for (j = 1; j <=MAXTERMCOL; ++j)
htab[j] = '0';
break;
case '6':
/* 3161 - Send model */
if ( debses )
break;
/* send ESC SP 6 pa LTA */
break;
case '7':
/* 3161 - Read Control 1 (6-15) */
/* Machine and Operating Modes */
if ( debses )
break;
pa1 = 0x81; /* 3151 and Character */
sprintf(response,"%c 7%c%c",
ESC,pa1,i31_lta);
ttol(response,strlen(response));
break;
case '8':
/* 3161 - Send message */
if ( debses )
break;
break;
case '9':
/* 3161 - Set Control 1 (6-15) */
/* Machine and Operating Modes */
n = i31rdctrl( 2, &pa1, &pa2, &pa3, &pa4, &op );
if ( debses || n == 0 )
break;
if ( GOT_OP(n) ) {
if ( (op & BIT7|BIT6) == 0x60 )
switch ( (op & 0x1F) ) {
case 0x00: /* Replacement (default) */
break;
case 0x01: /* Logical OR */
break;
case 0x02: /* Logical AND */
break;
case 0x1F: /* Interpreted as the DEL character */
break;
}
}
/* The following lines must be merged in to the above */
/* switch to enable the replace|and|or functionality */
if ( GOT_PA1(n) ) {
/* Machine Mode */
switch ( (pa1 & 0x1C) ) {
case 0x00: /* IBM 3151 (default) */
break;
case 0x04: /* IBM 3101 */
break;
case 0x08: /* ADM-3A */
break;
case 0x0C: /* ADM-5 */
break;
case 0x10: /* ADDS VP A2 */
break;
case 0x14: /* HZ-1500 */
break;
case 0x18: /* TVI-910+ */
break;
case 0x1C: /* use pa2 */
if ( GOT_PA2(n) ) {
switch ( (pa2 & 0x0F) ) {
case 0x00: /* TVI-925E */
break;
case 0x01: /* TVI-920/912 */
break;
}
}
break;
}
/* Operating Mode */
switch ( (pa1 & 0x03) ) {
case 0x00: /* Echo */
break;
case 0x01: /* Character */
break;
case 0x02: /* Block (default) */
break;
case 0x03: /* Reserved */
break;
}
}
break;
case 'M':
/* Index command */
if ( debses )
break;
break;
case 'q':
/* 3161 - Select host partition */
/* Specifies partition that host data is written to */
pa = i31inc();
if ( debses )
break;
switch ( pa ) {
case 'A': /* viewport 1 */
break;
case 'B': /* viewport 2 */
break;
case 'C': /* viewport 3 */
break;
}
break;
case 'r': {
/* 3161 - Create Viewport */
char cmd[16]="";
ch3 = i31inc();
switch ( ch3 ) {
case '!': /* one viewport */
for ( i=0;i<5;i++ )
cmd[i] = i31inc();
cmd[i] = NUL;
break;
case '"': /* two viewports */
for ( i=0;i<10;i++ )
cmd[i] = i31inc();
cmd[i] = NUL;
break;
case '#': /* three viewports */
for ( i=0;i<15;i++ )
cmd[i] = i31inc();
cmd[i] = NUL;
break;
}
if ( debses )
break;
switch ( ch3 ) {
case '!': /* one viewport */
if ( !strcmp(cmd,"! 8\"P") ) {
; /* 24 lines, 80 cols */
}
else if ( !strcmp(cmd,"! 9\"P" ) ) {
; /* 25 lines, 80 cols */
}
else if ( !strcmp(cmd,"! 8$D" ) ) {
; /* 24 lines, 132 cols */
}
else if ( !strcmp(cmd,"! 9$D" ) ) {
; /* 25 lines, 132 cols */
}
break;
case '"': /* two viewports */
if ( cmd[3] == '"' && cmd[4] == '0' &&
cmd[8] == '"' && cmd[9] == 'P') {
/* 80 columns */
/* height of viewport 1 is (cmd[2]-'!'+1) */
/* height of viewport 2 is (cmd[7]-'!'+1) */
/* sum of heights must equal 24 or 25 */
}
else if ( cmd[3] == '$' && cmd[4] == '$' &&
cmd[8] == '$' && cmd[9] == 'D') {
/* 132 columns */
/* height of viewport 1 is (cmd[2]-'!'+1) */
/* height of viewport 2 is (cmd[7]-'!'+1) */
/* sum of heights must equal 24 or 25 */
}
break;
case '#': /* three viewports */
if ( cmd[3] == '"' && cmd[4] == '0' &&
cmd[8] == '"' && cmd[9] == '0' &&
cmd[13] == '"' && cmd[14] == 'P') {
/* 80 columns */
/* height of viewport 1 is (cmd[2]-'!'+1) */
/* height of viewport 2 is (cmd[7]-'!'+1) */
/* height of viewport 3 is (cmd[12]-'!'+1) */
/* sum of heights must equal 24 or 25 */
}
else if ( cmd[3] == '$' && cmd[4] == '$' &&
cmd[8] == '$' && cmd[9] == '$' &&
cmd[13] == '$' && cmd[14] == 'D') {
/* 132 columns */
/* height of viewport 1 is (cmd[2]-'!'+1) */
/* height of viewport 2 is (cmd[7]-'!'+1) */
/* height of viewport 3 is (cmd[12]-'!'+1) */
/* sum of heights must equal 24 or 25 */
}
break;
}
break;
}
case 'S':
/* 3161 - Reset to initial state */
if ( debses )
break;
doreset(1) ;
break;
case 't':
/* 3161 - Default all function keys */
if ( debses )
break;
udkreset() ;
break;
case 'W':
/* 3161 - Print screen */
if ( debses )
break;
break;
case 'Z':
/* 3161 - Reset buffer address mode to cursor addr mode */
if ( debses )
break;
break;
default:
escstate = ES_NORMAL ;
i31ascii(ch);
}
break;
}
case '"': {
ch2 = i31inc() ;
switch ( ch2 ) {
case ':':
/* Enable Write Null */
if ( debses )
break;
break;
case ';':
/* Disable Write Null */
if ( debses )
break;
break;
case '6':
/* Extended Read Model Command */
if ( debses )
break;
/* send ESC " 6 pa1 pa2 pa3 pa4 pa5 LTA */
break;
case '7':
/* 3161 - Read Control 3 */
/* Display functions of the 3151 */
if ( debses )
break;
break;
case '9':
/* 3161 - Set Control 3 */
/* Display functions of the 3151 */
n = i31rdctrl( 2, &pa1, &pa2, &pa3, &pa4, &op );
if ( debses || n == 0 )
break;
if ( GOT_OP(n) ) {
if ( (op & BIT7|BIT6) == 0x60 )
switch ( (op & 0x1F) ) {
case 0x00: /* Replacement (default) */
break;
case 0x01: /* Logical OR */
break;
case 0x02: /* Logical AND */
break;
case 0x1F: /* Interpreted as the DEL character */
break;
}
}
/* The following lines must be merged in to the above */
/* switch to enable the replace|and|or functionality */
if ( GOT_PA1(n) ) {
/* Scroll (temporary) */
switch ( pa1 & 0x18 ) {
case 0x00: /* No scroll */
break;
case 0x08: /* Jump scroll (default) */
break;
case 0x10: /* Smooth scroll */
break;
case 0x11: /* Reserved */
break;
}
/* Line Wrap */
if ( pa1 & 0x04 )
; /* On (default) */
else
; /* Off */
/* Auto LF */
if ( pa1 & 0x02 )
; /* On (default) */
else
; /* Off */
/* ASCII LF Character */
if ( pa1 & 0x01 )
; /* New line */
else
; /* Line feed (default) */
}
if ( GOT_PA2(n) ) {
/* Scroll (permanently) */
switch ( pa2 & 0x18 ) {
case 0x00: /* No scroll */
break;
case 0x08: /* Jump scroll (default) */
break;
case 0x10: /* Smooth scroll */
break;
case 0x11: /* Reserved */
break;
}
/* Insert Character */
if ( pa2 & 0x04 )
; /* Inserts a space character */
else
; /* Sets insert mode (default) */
/* Tab */
if ( pa2 & 0x02 )
; /* Column Tab */
else
; /* Field Tab (default) */
/* Return Key */
if ( pa1 & 0x01 )
; /* New Line */
else
; /* Field (default) */
}
break;
case 'A':
/* 3161 - Jump partition */
/* Selects next viewport as active partition */
if ( debses )
break;
break;
default:
escstate = ES_NORMAL ;
i31ascii(ch);
}
break;
}
case '#': {
ch2 = i31inc() ;
switch ( ch2 ) {
case ';':
/* Display Host Message stored in OIA buffer */
if ( debses )
break;
break;
case ':':
/* Display Machine Status */
if ( debses )
break;
break;
case '7':
/* 3161 - Read Control 4 */
/* Send parameters of the 3151 */
if ( debses )
break;
break;
case '8':
/* 3161 - Send all */
if ( debses )
break;
break;
case '9':
/* 3161 - Set Control 4 */
/* Send parameters of the 3151 */
n = i31rdctrl( 1, &pa1, &pa2, &pa3, &pa4, &op );
if ( debses || n == 0 )
break;
if ( GOT_OP(n) ) {
if ( (op & BIT7|BIT6) == 0x60 )
switch ( (op & 0x1F) ) {
case 0x00: /* Replacement (default) */
break;
case 0x01: /* Logical OR */
break;
case 0x02: /* Logical AND */
break;
case 0x1F: /* Interpreted as the DEL character */
break;
}
}
/* The following lines must be merged in to the above */
/* switch to enable the replace|and|or functionality */
if ( GOT_PA1(n) ) {
/* Send Line */
if ( pa1 & 0x08 )
; /* Send key works as Send Line key */
/* and Send Line key works as Send key */
else
; /* Send key works as Send key and */
/* Send Line key works as Send Line key */
/* (default) */
/* Send Null Suppress */
if ( pa1 & 0x04 )
; /* On (default) */
else
; /* Off */
/* Lock Keyboard and Keep MDT Bit */
if ( pa1 & 0x02 )
; /* On */
else
; /* Off (default) */
/* Send Data Format */
if ( pa1 & 0x01 )
; /* AID LTA */
else
; /* Text LTA (default) */
}
break;
default:
escstate = ES_NORMAL ;
i31ascii(ch);
}
break;