xref: /illumos-gate/usr/src/lib/libcurses/screen/reset_sh.c (revision 0ccfe5834c3b867c1b6c273cae02ec8922bc0fd2)
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 /*LINTLIBRARY*/
41 
42 #include	<sys/types.h>
43 #include	<unistd.h>
44 #include	"curses_inc.h"
45 
46 int
47 reset_shell_mode(void)
48 {
49 #ifdef	DIOCSETT
50 	/*
51 	 * Restore any virtual terminal setting.  This must be done
52 	 * before the TIOCSETN because DIOCSETT will clobber flags like xtabs.
53 	 */
54 	cur_term -> old.st_flgs |= TM_SET;
55 	(void) ioctl(cur_term->Filedes, DIOCSETT, &cur_term -> old);
56 #endif	/* DIOCSETT */
57 #ifdef	SYSV
58 	if (_BRS(SHELLTTYS)) {
59 		if (shell_istermios < 0) {
60 			int i;
61 
62 			SHELLTTY.c_lflag = SHELLTTYS.c_lflag;
63 			SHELLTTY.c_oflag = SHELLTTYS.c_oflag;
64 			SHELLTTY.c_iflag = SHELLTTYS.c_iflag;
65 			SHELLTTY.c_cflag = SHELLTTYS.c_cflag;
66 			for (i = 0; i < NCC; i++)
67 				SHELLTTY.c_cc[i] = SHELLTTYS.c_cc[i];
68 			(void) ioctl(cur_term -> Filedes, TCSETAW, &SHELLTTY);
69 		} else
70 			(void) ioctl(cur_term -> Filedes, TCSETSW, &SHELLTTYS);
71 #ifdef	LTILDE
72 		if (cur_term -> newlmode != cur_term -> oldlmode)
73 			(void) ioctl(cur_term -> Filedes, TIOCLSET,
74 			    &cur_term -> oldlmode);
75 #endif	/* LTILDE */
76 	}
77 #else	/* SYSV */
78 	if (_BR(SHELLTTY)) {
79 		(void) ioctl(cur_term -> Filedes, TIOCSETN, &SHELLTTY);
80 #ifdef	LTILDE
81 		if (cur_term -> newlmode != cur_term -> oldlmode)
82 			(void) ioctl(cur_term -> Filedes, TIOCLSET,
83 			    &cur_term -> oldlmode);
84 #endif	/* LTILDE */
85 	}
86 #endif	/* SYSV */
87 	return (OK);
88 }
89