usr/src/lib/libcurses/screen/reset_sh.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 #include        <sys/types.h>
  45 #include        <unistd.h>
  46 #include        "curses_inc.h"
  47
  48 int
  49 reset_shell_mode(void)
  50 {
  51 #ifdef  DIOCSETT
  52         /*
  53          * Restore any virtual terminal setting.  This must be done
  54          * before the TIOCSETN because DIOCSETT will clobber flags like xtabs.
  55          */
  56         cur_term -> old.st_flgs |= TM_SET;
  57         (void) ioctl(cur_term->Filedes, DIOCSETT, &cur_term -> old);
  58 #endif  /* DIOCSETT */
  59 #ifdef  SYSV
  60         if (_BRS(SHELLTTYS)) {
  61                 if (shell_istermios < 0) {
  62                         int i;
  63
  64                         SHELLTTY.c_lflag = SHELLTTYS.c_lflag;
  65                         SHELLTTY.c_oflag = SHELLTTYS.c_oflag;
  66                         SHELLTTY.c_iflag = SHELLTTYS.c_iflag;
  67                         SHELLTTY.c_cflag = SHELLTTYS.c_cflag;
  68                         for (i = 0; i < NCC; i++)
  69                                 SHELLTTY.c_cc[i] = SHELLTTYS.c_cc[i];
  70                         (void) ioctl(cur_term -> Filedes, TCSETAW, &SHELLTTY);
  71                 } else
  72                         (void) ioctl(cur_term -> Filedes, TCSETSW, &SHELLTTYS);
  73 #ifdef  LTILDE
  74                 if (cur_term -> newlmode != cur_term -> oldlmode)
  75                         (void) ioctl(cur_term -> Filedes, TIOCLSET,
  76                             &cur_term -> oldlmode);
  77 #endif  /* LTILDE */
  78         }
  79 #else   /* SYSV */
  80         if (_BR(SHELLTTY)) {
  81                 (void) ioctl(cur_term -> Filedes, TIOCSETN, &SHELLTTY);
  82 #ifdef  LTILDE
  83                 if (cur_term -> newlmode != cur_term -> oldlmode)
  84                         (void) ioctl(cur_term -> Filedes, TIOCLSET,
  85                             &cur_term -> oldlmode);
  86 #endif  /* LTILDE */
  87         }
  88 #endif  /* SYSV */
  89         return (OK);
  90 }