xref: /illumos-gate/usr/src/lib/libxcurses2/src/libc/xcurses/waddnstr.c (revision 32640292339b07090f10ce34d455f98711077343)
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 (c) 1995-1998 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /* LINTLIBRARY */
28 
29 /*
30  * waddnstr.c
31  *
32  * XCurses Library
33  *
34  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
35  *
36  */
37 
38 #if M_RCSID
39 #ifndef lint
40 static char rcsID[] =
41 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
42 "libxcurses/src/libc/xcurses/rcs/waddnstr.c 1.3 1998/05/26 19:12:39 "
43 "cbates Exp $";
44 #endif
45 #endif
46 
47 #include <private.h>
48 #include <limits.h>
49 
50 int
51 waddnstr(WINDOW *w, const char *str, int n)
52 {
53 	int	i;
54 	cchar_t	cc;
55 	short	oflags;
56 
57 	if (n < 0)
58 		n = INT_MAX;
59 
60 	/*
61 	 * Disable window flushing until the entire string has
62 	 * been written into the window.
63 	 */
64 	oflags = w->_flags & (W_FLUSH | W_SYNC_UP);
65 	w->_flags &= ~(W_FLUSH | W_SYNC_UP);
66 
67 	for (; *str != '\0' && 0 < n; n -= i, str += i) {
68 		if ((i = __m_mbs_cc(str, 0, 0, &cc)) < 0 ||
69 			__m_wadd_wch(w, &cc) == ERR)
70 			return (ERR);
71 	}
72 
73 	w->_flags |= oflags;
74 
75 	WSYNC(w);
76 
77 	return (WFLUSH(w));
78 }
79