xref: /titanic_52/usr/src/lib/libxcurses/src/libc/mks/m_vsscan.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 (c) 1996, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  *	vsscanf.c
31  *
32  *	Copyright 1985, 1994 by Mortice Kern Systems Inc.  All rights reserved.
33  *
34  */
35 
36 #ifdef M_RCSID
37 #ifndef lint
38 static char rcsID[] = "$Header: /rd/src/libc/mks/rcs/m_vsscan.c 1.2 1994/06/17 18:19:41 ant Exp $";
39 #endif
40 #endif
41 
42 #include <mks.h>
43 #include <stdio.h>
44 #include <stdarg.h>
45 #include <limits.h>
46 
47 extern int mks_vfscanf ANSI((FILE *, char *, va_list));
48 
49 LDEFN int
50 m_vsscanf(buf, fmt, vp)
51 char *buf, *fmt;
52 va_list vp;
53 {
54 	static FILE *fp = NULL;
55 
56 	/* Either open or reuse a temporary file.  Note temporary files
57 	 * opened by tmpfile() will be automatically closed and removed
58 	 * when the program terminates (so says ANSI C).
59 	 */
60 	if (fp == NULL && (fp = tmpfile()) == NULL)
61 		return -1;
62 	else
63 		(void) rewind(fp);
64 
65 	/* Write out the contents of the buffer to the temporary file. */
66 	(void) fputs(buf, fp);
67 
68 	/* Rewind in preparation for reading. */
69 	(void) rewind(fp);
70 
71 	return (mks_vfscanf(fp, fmt, vp));
72 }
73