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