fis-gtm/sr_unix/iott_use.c

431 lines
12 KiB
C

/****************************************************************
* *
* Copyright 2001, 2009 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include <sys/ioctl.h>
#include <errno.h>
#include "gtm_fcntl.h"
#include <signal.h>
#include "gtm_string.h"
#include "gtm_iconv.h"
#include "gtm_termios.h"
#include "gtm_unistd.h"
#include "io_params.h"
#include "io.h"
#include "iottdef.h"
#include "iosp.h"
#include "trmdef.h"
#include "nametabtyp.h"
#include "copy.h"
#include "gtmio.h"
#include "eintr_wrappers.h"
#include "stringpool.h"
#include "send_msg.h"
#include "namelook.h"
#include "error.h"
#include "gtm_tputs.h"
#include "gtm_tparm.h"
LITDEF nametabent filter_names[] =
{
{4, "CHAR*"},
{3, "ESC*"},
{6, "NOCHAR*"},
{5, "NOESC*"}
};
LITDEF unsigned char filter_index[27] =
{
0, 0, 0, 1, 1, 2, 2, 2, 2, 2, 2, 2
,2, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4
,4, 4, 4
};
GBLREF bool ctrlc_on;
GBLREF char *CURSOR_ADDRESS, *CLR_EOL, *CLR_EOS;
GBLREF io_pair io_std_device;
GBLREF io_pair io_curr_device;
GBLREF bool prin_out_dev_failure;
GBLREF void (*ctrlc_handler_ptr)();
GBLREF boolean_t dollar_zininterrupt;
LITREF unsigned char io_params_size[];
void iott_use(io_desc *iod, mval *pp)
{
boolean_t flush_input;
char dc1;
int fil_type;
unsigned char ch, len;
int4 length, width;
uint4 mask_in;
d_tt_struct *temp_ptr, *tt_ptr;
io_desc *d_in, *d_out;
io_termmask mask_term;
char *ttab;
struct termios t;
int status;
int save_errno;
int p_offset;
error_def(ERR_DEVPARMNEG);
error_def(ERR_NOPRINCIO);
error_def(ERR_SYSCALL);
error_def(ERR_TCGETATTR);
error_def(ERR_TCSETATTR);
error_def(ERR_TTINVFILTER);
error_def(ERR_WIDTHTOOSMALL);
error_def(ERR_ZINTRECURSEIO);
p_offset = 0;
assert(iod->state == dev_open);
iott_flush(iod);
tt_ptr = (d_tt_struct *)iod->dev_sp;
if (*(pp->str.addr + p_offset) != iop_eol)
{
if (tt_ptr->mupintr)
if (dollar_zininterrupt)
rts_error(VARLSTCNT(1) ERR_ZINTRECURSEIO);
else
{ /* The interrupted read was not properly resumed so clear it now */
tt_ptr->mupintr = FALSE;
tt_ptr->tt_state_save.who_saved = ttwhichinvalid;
io_find_mvstent(iod, TRUE);
}
status = tcgetattr(tt_ptr->fildes, &t);
if (0 != status)
{
save_errno = errno;
if (io_curr_device.out == io_std_device.out)
{
if (!prin_out_dev_failure)
prin_out_dev_failure = TRUE;
else
{
send_msg(VARLSTCNT(1) ERR_NOPRINCIO);
stop_image_no_core();
}
}
rts_error(VARLSTCNT(3) ERR_TCGETATTR, tt_ptr->fildes, save_errno);
}
flush_input = FALSE;
d_in = iod->pair.in;
d_out = iod->pair.out;
temp_ptr = (d_tt_struct *)d_in->dev_sp;
mask_in = temp_ptr->term_ctrl;
mask_term = temp_ptr->mask_term;
while (*(pp->str.addr + p_offset) != iop_eol)
{
switch (ch = *(pp->str.addr + p_offset++))
{
case iop_canonical:
tt_ptr->canonical = TRUE;
t.c_lflag |= ICANON;
break;
case iop_nocanonical:
tt_ptr->canonical = FALSE;
t.c_lflag &= ~(ICANON);
break;
case iop_cenable:
temp_ptr = (d_tt_struct *)io_std_device.in->dev_sp;
if (tt_ptr->fildes == temp_ptr->fildes && !ctrlc_on)
{
struct sigaction act;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
act.sa_handler = ctrlc_handler_ptr;
sigaction(SIGINT, &act, 0);
ctrlc_on = TRUE;
}
break;
case iop_nocenable:
temp_ptr = (d_tt_struct *)io_std_device.in->dev_sp;
if (tt_ptr->fildes == temp_ptr->fildes && ctrlc_on)
{
struct sigaction act;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
act.sa_handler = SIG_IGN;
sigaction(SIGINT, &act, 0);
ctrlc_on = FALSE;
}
break;
case iop_clearscreen:
gtm_tputs(CLR_EOS, 1, outc);
break;
case iop_convert:
mask_in |= TRM_CONVERT;
break;
case iop_noconvert:
mask_in &= ~TRM_CONVERT;
break;
case iop_ctrap:
GET_LONG(tt_ptr->enbld_outofbands.mask, pp->str.addr + p_offset);
break;
case iop_downscroll:
if (d_out->dollar.y > 0)
{
d_out->dollar.y--;
gtm_tputs(gtm_tparm(CURSOR_ADDRESS, d_out->dollar.y, d_out->dollar.x), 1, outc);
}
break;
case iop_echo:
mask_in &= (~TRM_NOECHO);
break;
case iop_noecho:
mask_in |= TRM_NOECHO;
break;
case iop_editing:
if (io_curr_device.in == io_std_device.in)
{ /* $PRINCIPAL only */
tt_ptr->ext_cap |= TT_EDITING;
if (!tt_ptr->recall_buff.addr)
{
assert(tt_ptr->in_buf_sz);
tt_ptr->recall_buff.addr = malloc(tt_ptr->in_buf_sz);
tt_ptr->recall_size = tt_ptr->in_buf_sz;
tt_ptr->recall_buff.len = 0; /* nothing in buffer */
}
}
break;
case iop_noediting:
if (io_curr_device.in == io_std_device.in)
tt_ptr->ext_cap &= ~TT_EDITING; /* $PRINCIPAL only */
break;
case iop_escape:
mask_in |= TRM_ESCAPE;
break;
case iop_noescape:
mask_in &= (~TRM_ESCAPE);
default:
break;
case iop_eraseline:
gtm_tputs(CLR_EOL, 1, outc);
break;
case iop_exception:
iod->error_handler.len = *(pp->str.addr + p_offset);
iod->error_handler.addr = (char *)(pp->str.addr + p_offset + 1);
s2pool(&iod->error_handler);
break;
case iop_filter:
len = *(pp->str.addr + p_offset);
ttab = pp->str.addr + p_offset + 1;
if ((fil_type = namelook(filter_index, filter_names, ttab, len)) < 0)
{
rts_error(VARLSTCNT(1) ERR_TTINVFILTER);
return;
}
switch (fil_type)
{
case 0:
iod->write_filter |= CHAR_FILTER;
break;
case 1:
iod->write_filter |= ESC1;
break;
case 2:
iod->write_filter &= ~CHAR_FILTER;
break;
case 3:
iod->write_filter &= ~ESC1;
break;
}
break;
case iop_nofilter:
iod->write_filter = 0;
break;
case iop_flush:
flush_input = TRUE;
break;
case iop_hostsync:
t.c_iflag |= IXOFF;
break;
case iop_nohostsync:
t.c_iflag &= ~IXOFF;
break;
case iop_insert:
if (io_curr_device.in == io_std_device.in)
tt_ptr->ext_cap &= ~TT_NOINSERT; /* $PRINCIPAL only */
break;
case iop_noinsert:
if (io_curr_device.in == io_std_device.in)
tt_ptr->ext_cap |= TT_NOINSERT; /* $PRINCIPAL only */
break;
case iop_length:
GET_LONG(length, pp->str.addr + p_offset);
if (0 > length)
rts_error(VARLSTCNT(1) ERR_DEVPARMNEG);
d_out->length = length;
break;
case iop_pasthru:
mask_in |= TRM_PASTHRU;
break;
case iop_nopasthru:
mask_in &= (~TRM_PASTHRU);
break;
case iop_readsync:
mask_in |= TRM_READSYNC;
break;
case iop_noreadsync:
dc1 = (char)17;
temp_ptr = (d_tt_struct *)io_std_device.in->dev_sp;
DOWRITERC(temp_ptr->fildes, &dc1, 1, status);
if (0 != status)
rts_error(VARLSTCNT(1) status);
mask_in &= (~TRM_READSYNC);
break;
case iop_terminator:
memcpy(&mask_term.mask[0], (pp->str.addr + p_offset), SIZEOF(io_termmask));
temp_ptr = (d_tt_struct *)d_in->dev_sp;
if (mask_term.mask[0] == NUL &&
mask_term.mask[1] == NUL &&
mask_term.mask[2] == NUL &&
mask_term.mask[3] == NUL &&
mask_term.mask[4] == NUL &&
mask_term.mask[5] == NUL &&
mask_term.mask[6] == NUL &&
mask_term.mask[7] == NUL)
{
temp_ptr->default_mask_term = TRUE;
if (CHSET_UTF8 == d_in->ichset)
{
mask_term.mask[0] = TERM_MSK_UTF8_0;
mask_term.mask[4] = TERM_MSK_UTF8_4;
} else
mask_term.mask[0] = TERM_MSK;
} else
temp_ptr->default_mask_term = FALSE;
break;
case iop_noterminator:
temp_ptr = (d_tt_struct *)d_in->dev_sp;
temp_ptr->default_mask_term = FALSE;
memset(&mask_term.mask[0], 0, SIZEOF(io_termmask));
break;
case iop_ttsync:
t.c_iflag |= IXON;
break;
case iop_nottsync:
t.c_iflag &= ~IXON;
break;
case iop_typeahead:
mask_in &= (~TRM_NOTYPEAHD);
break;
case iop_notypeahead:
mask_in |= TRM_NOTYPEAHD;
break;
case iop_upscroll:
d_out->dollar.y++;
if (d_out->length)
d_out->dollar.y %= d_out->length;
gtm_tputs(gtm_tparm(CURSOR_ADDRESS, d_out->dollar.y, d_out->dollar.x), 1, outc);
break;
case iop_width:
GET_LONG(width, pp->str.addr + p_offset);
if (0 > width)
rts_error(VARLSTCNT(1) ERR_DEVPARMNEG);
/* Do not allow a WIDTH of 1 if UTF mode (ICHSET or OCHSET is not M) */
if ((1 == width) && ((CHSET_M != d_in->ochset) || (CHSET_M != d_in->ichset)))
rts_error(VARLSTCNT(1) ERR_WIDTHTOOSMALL);
if (0 == width)
{
d_out->wrap = FALSE;
d_out->width = TTDEF_PG_WIDTH;
} else
{
d_out->width = width;
d_out->wrap = TRUE;
}
break;
case iop_wrap:
d_out->wrap = TRUE;
break;
case iop_nowrap:
d_out->wrap = FALSE;
break;
case iop_x:
GET_LONG(d_out->dollar.x, pp->str.addr + p_offset);
if (0 > (int4)d_out->dollar.x)
d_out->dollar.x = 0;
if (d_out->dollar.x > d_out->width && d_out->wrap)
{
d_out->dollar.y += (d_out->dollar.x / d_out->width);
if (d_out->length)
d_out->dollar.y %= d_out->length;
d_out->dollar.x %= d_out->width;
}
gtm_tputs(gtm_tparm(CURSOR_ADDRESS, d_out->dollar.y, d_out->dollar.x), 1, outc);
break;
case iop_y:
GET_LONG(d_out->dollar.y, pp->str.addr + p_offset);
if (0 > (int4)d_out->dollar.y)
d_out->dollar.y = 0;
if (d_out->length)
d_out->dollar.y %= d_out->length;
gtm_tputs(gtm_tparm(CURSOR_ADDRESS, d_out->dollar.y, d_out->dollar.x), 1, outc);
break;
case iop_ipchset:
{
#ifdef KEEP_zOS_EBCDIC
if ( (iconv_t)0 != iod->input_conv_cd )
{
ICONV_CLOSE_CD(iod->input_conv_cd);
}
SET_CODE_SET(iod->in_code_set, (char *)(pp->str.addr + p_offset + 1));
if (DEFAULT_CODE_SET != iod->in_code_set)
ICONV_OPEN_CD(iod->input_conv_cd,
(char *)(pp->str.addr + p_offset + 1), INSIDE_CH_SET);
#endif
break;
}
case iop_opchset:
{
#ifdef KEEP_zOS_EBCDIC
if ( (iconv_t)0 != iod->output_conv_cd)
{
ICONV_CLOSE_CD(iod->output_conv_cd);
}
SET_CODE_SET(iod->out_code_set, (char *)(pp->str.addr + p_offset + 1));
if (DEFAULT_CODE_SET != iod->out_code_set)
ICONV_OPEN_CD(iod->output_conv_cd, INSIDE_CH_SET,
(char *)(pp->str.addr + p_offset + 1));
#endif
break;
}
}
p_offset += ((IOP_VAR_SIZE == io_params_size[ch]) ?
(unsigned char)*(pp->str.addr + p_offset) + 1 : io_params_size[ch]);
}
temp_ptr = (d_tt_struct *)d_in->dev_sp;
Tcsetattr(tt_ptr->fildes, TCSANOW, &t, status);
if (0 != status)
rts_error(VARLSTCNT(3) ERR_TCSETATTR, tt_ptr->fildes, errno);
temp_ptr->term_ctrl = mask_in;
memcpy(&temp_ptr->mask_term, &mask_term, SIZEOF(io_termmask));
if (flush_input)
{
TCFLUSH(tt_ptr->fildes, TCIFLUSH, status);
if (0 != status)
rts_error(VARLSTCNT(8) ERR_SYSCALL, 5, LIT_AND_LEN("tcflush input"),
CALLFROM, errno);
}
} else if (tt_ptr->mupintr && !dollar_zininterrupt)
{ /* The interrupted read was not properly resumed so clear it now */
tt_ptr->mupintr = FALSE;
tt_ptr->tt_state_save.who_saved = ttwhichinvalid;
io_find_mvstent(iod, TRUE); /* clear mv stack entry */
}
return;
}