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 /*
43 * printw and friends
44 *
45 */
46
47 #include <sys/types.h>
48 #include <stdlib.h>
49 #include "curses_inc.h"
50 #include <stdarg.h>
51
52 /*
53 * This routine actually executes the printf and adds it to the window
54 *
55 * This code now uses the vsprintf routine, which portably digs
56 * into stdio. We provide a vsprintf for older systems that don't
57 * have one.
58 */
59
60 /*VARARGS2*/
61 int
vwprintw(WINDOW * win,char * fmt,va_list ap)62 vwprintw(WINDOW *win, char *fmt, va_list ap)
63 {
64 int size = BUFSIZ;
65 char *buffer;
66 int n, rv;
67
68 buffer = (char *) malloc(size);
69 if (buffer == NULL)
70 return (ERR);
71 /*CONSTCOND*/
72 while (1) {
73 n = vsnprintf(buffer, size, fmt, ap);
74 if (n < size)
75 break;
76 size *= 2;
77 buffer = (char *) realloc(buffer, size);
78 if (buffer == NULL)
79 return (ERR);
80 }
81 va_end(ap);
82 rv = waddstr(win, buffer);
83 free(buffer);
84 return (rv);
85 }
86