xref: /titanic_41/usr/src/lib/libxcurses/src/libc/xcurses/waddnstr.c (revision 5cff782560a1c3cf913ba5574a5123a299f3315e)
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, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
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[] = "$Header: /rd/src/libc/xcurses/rcs/waddnstr.c 1.3 1995/06/21 20:30:55 ant Exp $";
41 #endif
42 #endif
43 
44 #include <private.h>
45 #include <limits.h>
46 
47 int
48 waddnstr(w, str, n)
49 WINDOW *w;
50 const char *str;
51 int n;
52 {
53 	int i;
54 	cchar_t cc;
55 	short oflags;
56 
57 #ifdef M_CURSES_TRACE
58 	__m_trace("waddnstr(%p, %p = \"%s\", %d)", w, str, str, n);
59 #endif
60 
61 	if (n < 0)
62 		n = INT_MAX;
63 
64 	/* Disable window flushing until the entire string has
65 	 * been written into the window.
66 	 */
67 	oflags = w->_flags & (W_FLUSH | W_SYNC_UP);
68 	w->_flags &= ~(W_FLUSH | W_SYNC_UP);
69 
70 	for ( ; *str != '\0' && 0 < n; n -= i, str += i) {
71                 if ((i = __m_mbs_cc(str, w->_bg._at, w->_bg._co, &cc)) < 0
72 		|| wadd_wch(w, &cc) == ERR)
73 			return __m_return_code("waddnstr", ERR);
74         }
75 
76 	w->_flags |= oflags;
77 
78 	WSYNC(w);
79 
80 	return __m_return_code("waddnstr", WFLUSH(w));
81 }
82