usr/src/lib/libcurses/screen/raw.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * University Copyright- Copyright (c) 1982, 1986, 1988
  32  * The Regents of the University of California
  33  * All Rights Reserved
  34  *
  35  * University Acknowledgment- Portions of this document are derived from
  36  * software developed by the University of California, Berkeley, and its
  37  * contributors.
  38  */
  39
  40 #pragma ident   "%Z%%M% %I%     %E% SMI"
  41
  42 /*LINTLIBRARY*/
  43
  44 /*
  45  * Routines to deal with setting and resetting modes in the tty driver.
  46  * See also setupterm.c in the termlib part.
  47  */
  48 #include <sys/types.h>
  49 #include "curses_inc.h"
  50
  51 int
  52 raw(void)
  53 {
  54 #ifdef SYSV
  55         /* Disable interrupt characters */
  56         PROGTTYS.c_lflag &= ~(ISIG|ICANON);
  57         PROGTTYS.c_cc[VMIN] = 1;
  58         PROGTTYS.c_cc[VTIME] = 0;
  59         PROGTTYS.c_iflag &= ~IXON;
  60 #else
  61         PROGTTY.sg_flags &= ~CBREAK;
  62         PROGTTY.sg_flags |= RAW;
  63 #endif
  64
  65 #ifdef DEBUG
  66 #ifdef SYSV
  67         if (outf)
  68                 fprintf(outf, "raw(), file %x, iflag %x, cflag %x\n",
  69         cur_term->Filedes, PROGTTYS.c_iflag, PROGTTYS.c_cflag);
  70 #else
  71         if (outf)
  72                 fprintf(outf, "raw(), file %x, flags %x\n",
  73         cur_term->Filedes, PROGTTY.sg_flags);
  74 #endif /* SYSV */
  75 #endif
  76
  77         if (!needs_xon_xoff)
  78                 xon_xoff = 0;   /* Cannot use xon/xoff in raw mode */
  79         cur_term->_fl_rawmode = 2;
  80         cur_term->_delay = -1;
  81         (void) reset_prog_mode();
  82 #ifdef FIONREAD
  83         cur_term->timeout = 0;
  84 #endif /* FIONREAD */
  85         return (OK);
  86 }