Home | History | Annotate | Line # | Download | only in libcurses 
      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
     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
     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
     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
    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
    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