118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2010 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include <errno.h>
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#include "gtm_termios.h"
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#include "io.h"
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#include "iosp.h"
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#include "iottdef.h"
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#include "gtmio.h"
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#include "eintr_wrappers.h"
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#include "setterm.h"
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#include "gtm_isanlp.h"
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void setterm(io_desc *ioptr)
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{
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int status;
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int save_errno;
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struct termios t;
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d_tt_struct *tt_ptr;
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error_def(ERR_TCSETATTR);
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tt_ptr = (d_tt_struct *) ioptr->dev_sp;
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t = *tt_ptr->ttio_struct;
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if (tt_ptr->canonical)
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{ t.c_lflag &= ~(ECHO);
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t.c_lflag |= ICANON;
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}else
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{ t.c_lflag &= ~(ICANON | ECHO);
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t.c_cc[VTIME] = 8;
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t.c_cc[VMIN] = 1;
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}
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t.c_iflag &= ~(ICRNL);
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Tcsetattr(tt_ptr->fildes, TCSANOW, &t, status);
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if (0 != status)
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{
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save_errno = errno;
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if (gtm_isanlp(tt_ptr->fildes) == 0)
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rts_error(VARLSTCNT(4) ERR_TCSETATTR, 1, tt_ptr->fildes, save_errno);
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}
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return;
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}
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/* These routines are here because it is frightfully important to keep them
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in synch with setterm. When they get out of line, a r x:0 causes your
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terminal to be unreachable thereafter.
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*/
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/* iott_mterm sets the inter-character timer (t.c_cc[VTIME]) to 0.0 seconds
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so that a read with a zero timeout (ie. Read x:0) will not wait.
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*/
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void iott_mterm(io_desc *ioptr)
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{
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int status;
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struct termios t;
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d_tt_struct *tt_ptr;
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error_def(ERR_TCSETATTR);
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tt_ptr = (d_tt_struct *) ioptr->dev_sp;
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t = *tt_ptr->ttio_struct;
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if (tt_ptr->canonical)
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{ t.c_lflag &= ~(ECHO);
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t.c_lflag |= ICANON;
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}else
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{ t.c_lflag &= ~(ICANON | ECHO);
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#ifdef __MVS__
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t.c_cc[VTIME] = 1;
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#else
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t.c_cc[VTIME] = 0;
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#endif
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t.c_cc[VMIN] = 0;
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}
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t.c_iflag &= ~(ICRNL);
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Tcsetattr(tt_ptr->fildes, TCSANOW, &t, status);
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if (0 != status)
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rts_error(VARLSTCNT(4) ERR_TCSETATTR, 1, tt_ptr->fildes, errno);
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return;
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}
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/* iott_rterm restores the inter-character timer (t.c_cc[VTIME]) to 0.8 seconds
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*/
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void iott_rterm(io_desc *ioptr)
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{
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int status;
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struct termios t;
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d_tt_struct *tt_ptr;
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tt_ptr = (d_tt_struct *) ioptr->dev_sp;
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t = *tt_ptr->ttio_struct;
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if (tt_ptr->canonical)
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{ t.c_lflag &= ~(ECHO);
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t.c_lflag |= ICANON;
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}else
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{ t.c_lflag &= ~(ICANON | ECHO);
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t.c_cc[VTIME] = 8;
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t.c_cc[VMIN] = 1;
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}
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t.c_iflag &= ~(ICRNL);
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Tcsetattr(tt_ptr->fildes, TCSANOW, &t, status);
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if (0 != status)
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rts_error(VARLSTCNT(1) status);
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return;
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}
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