1 /* $NetBSD: scanw.c,v 1.24 2024/12/23 02:58:04 blymn Exp $ */
2
3 /*
4 * Copyright (c) 1981, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)scanw.c 8.3 (Berkeley) 5/4/94";
36 #else
37 __RCSID("$NetBSD: scanw.c,v 1.24 2024/12/23 02:58:04 blymn Exp $");
38 #endif
39 #endif /* not lint */
40
41 /*
42 * scanw and friends.
43 */
44
45 #include <stdarg.h>
46
47 #include "curses.h"
48
49 /*
50 * scanw --
51 * Implement a scanf on the standard screen.
52 */
53 int
scanw(const char * fmt,...)54 scanw(const char *fmt,...)
55 {
56 va_list ap;
57 int ret;
58
59 va_start(ap, fmt);
60 ret = vw_scanw(stdscr, fmt, ap);
61 va_end(ap);
62 return ret;
63 }
64 /*
65 * wscanw --
66 * Implements a scanf on the given window.
67 */
68 int
wscanw(WINDOW * win,const char * fmt,...)69 wscanw(WINDOW *win, const char *fmt,...)
70 {
71 va_list ap;
72 int ret;
73
74 if (__predict_false(win == NULL))
75 return ERR;
76
77 va_start(ap, fmt);
78 ret = vw_scanw(win, fmt, ap);
79 va_end(ap);
80 return ret;
81 }
82 /*
83 * mvscanw, mvwscanw --
84 * Implement the mvscanw commands. Due to the variable number of
85 * arguments, they cannot be macros. Another sigh....
86 */
87 int
mvscanw(int y,int x,const char * fmt,...)88 mvscanw(int y, int x, const char *fmt,...)
89 {
90 va_list ap;
91 int ret;
92
93 if (move(y, x) != OK)
94 return ERR;
95 va_start(ap, fmt);
96 ret = vw_scanw(stdscr, fmt, ap);
97 va_end(ap);
98 return ret;
99 }
100
101 int
mvwscanw(WINDOW * win,int y,int x,const char * fmt,...)102 mvwscanw(WINDOW * win, int y, int x, const char *fmt,...)
103 {
104 va_list ap;
105 int ret;
106
107 if (move(y, x) != OK)
108 return ERR;
109 va_start(ap, fmt);
110 ret = vw_scanw(win, fmt, ap);
111 va_end(ap);
112 return ret;
113 }
114 /*
115 * vwscanw --
116 * This routine actually executes the scanf from the window.
117 */
118 int
vw_scanw(WINDOW * win,const char * fmt,va_list ap)119 vw_scanw(WINDOW *win, const char *fmt, va_list ap)
120 {
121 char buf[1024];
122 int ret;
123
124 if (__predict_false(win == NULL))
125 return ERR;
126
127 ret = ERR;
128 if (wgetnstr(win, buf, (int) sizeof(buf)) == OK) {
129 if (vsscanf(buf, fmt, ap) > 0) {
130 ret = OK;
131 }
132 }
133
134 return ret;
135 }
136
137 __strong_alias(vwscanw, vw_scanw)
138