xref: /illumos-gate/usr/src/lib/libxcurses/src/libc/xcurses/winsnstr.c (revision b7daf79982d77b491ef9662483cd4549e0e5da9a)
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  * wins_nws.c
31  *
32  * XCurses Library
33  *
34  * Copyright 1990, 1994 by Mortice Kern Systems Inc.  All rights reserved.
35  *
36  */
37 
38 #ifdef M_RCSID
39 #ifndef lint
40 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/winsnstr.c 1.2 1995/06/21 20:31:02 ant Exp $";
41 #endif
42 #endif
43 
44 #include <private.h>
45 
46 int
47 winsnstr(w, mbs, n)
48 WINDOW *w;
49 const char *mbs;
50 int n;
51 {
52 	cchar_t cc;
53 	int i, y, x;
54 	short oflags;
55 
56 #ifdef M_CURSES_TRACE
57 	__m_trace("winsnstr(%p, %p, n)", w, mbs, n);
58 #endif
59 
60 	y = w->_cury;
61 	x = w->_curx;
62 
63 	if (n < 0)
64 		n = INT_MAX;
65 
66 	/* Disable window flushing until the entire string has
67 	 * been written into the window.
68 	 */
69 	oflags = w->_flags & (W_FLUSH | W_SYNC_UP);
70 	w->_flags &= ~(W_FLUSH | W_SYNC_UP);
71 
72 	for ( ; *mbs != '\0' && 0 < n; n -= i, mbs += i) {
73 		if ((i = __m_mbs_cc(mbs, w->_bg._at, w->_bg._co, &cc)) < 0
74 		|| __m_wins_wch(w, y, x, &cc, &y, &x) == ERR)
75 			return __m_return_code("winsnstr", ERR);
76 	}
77 
78 	w->_flags |= oflags;
79 
80 	WSYNC(w);
81 
82 	return __m_return_code("winsnstr", WFLUSH(w));
83 }
84