xref: /illumos-gate/usr/src/ucblib/libcurses/scanw.c (revision 7a6d80f1660abd4755c68cbd094d4a914681d26e)
1 /*
2  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
7 /*	  All Rights Reserved  	*/
8 
9 /*
10  * Copyright (c) 1980 Regents of the University of California.
11  * All rights reserved.  The Berkeley software License Agreement
12  * specifies the terms and conditions for redistribution.
13  */
14 
15 /*LINTLIBRARY*/
16 
17 #ifndef lint
18 static char
19 sccsid[] = "@(#)scanw.c 1.8 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
20 #endif	/* not lint */
21 
22 #include	<stdarg.h>
23 #include	<string.h>
24 
25 /*
26  * scanw and friends
27  */
28 
29 #include	"curses.ext"
30 
31 /*
32  *	This routine implements a scanf on the standard screen.
33  */
34 
35 int
36 scanw(char *fmt, ...)
37 {	int j;
38 	va_list ap;
39 
40 	va_start(ap, fmt);
41 	j = _sscans(stdscr, fmt, ap);
42 	va_end(ap);
43 	return (j);
44 }
45 
46 /*
47  *	This routine implements a scanf on the given window.
48  */
49 
50 int
51 wscanw(WINDOW *win, char *fmt, ...)
52 {
53 	va_list ap;
54 	int j;
55 
56 	va_start(ap, fmt);
57 	j = _sscans(win, fmt, ap);
58 	va_end(ap);
59 	return (j);
60 }
61 /*
62  *	This routine actually executes the scanf from the window.
63  *
64  *	This is really a modified version of "sscanf".  As such,
65  * it assumes that sscanf interfaces with the other scanf functions
66  * in a certain way.  If this is not how your system works, you
67  * will have to modify this routine to use the interface that your
68  * "sscanf" uses.
69  */
70 
71 int
72 _sscans(WINDOW *win, char *fmt, va_list	ap)
73 {
74 	char	buf[100];
75 	FILE	junk;
76 
77 	junk._flag = _IOREAD|_IOWRT;
78 	junk._base = junk._ptr = (unsigned char *)buf;
79 	if (wgetstr(win, buf) == ERR)
80 		return (ERR);
81 	junk._cnt = (ssize_t)strlen(buf);
82 	return (_doscan(&junk, fmt, ap));
83 }
84