xref: /csrg-svn/lib/libc/stdio/tmpfile.c (revision 46111)
1*46111Sbostic /*-
2*46111Sbostic  * Copyright (c) 1990 The Regents of the University of California.
3*46111Sbostic  * All rights reserved.
4*46111Sbostic  *
5*46111Sbostic  * This code is derived from software contributed to Berkeley by
6*46111Sbostic  * Chris Torek.
7*46111Sbostic  *
8*46111Sbostic  * %sccs.include.redist.c%
9*46111Sbostic  */
10*46111Sbostic 
11*46111Sbostic #if defined(LIBC_SCCS) && !defined(lint)
12*46111Sbostic static char sccsid[] = "@(#)tmpfile.c	5.1 (Berkeley) 01/20/91";
13*46111Sbostic #endif /* LIBC_SCCS and not lint */
14*46111Sbostic 
15*46111Sbostic #include <sys/param.h>
16*46111Sbostic #include <stdio.h>
17*46111Sbostic #include <errno.h>
18*46111Sbostic 
19*46111Sbostic FILE *
20*46111Sbostic tmpfile()
21*46111Sbostic {
22*46111Sbostic 	FILE *fp;
23*46111Sbostic 	int e;
24*46111Sbostic 	char *f, buf[MAXPATHLEN];
25*46111Sbostic 
26*46111Sbostic 	if ((f = tmpnam(buf)) == NULL)
27*46111Sbostic 		return (NULL);
28*46111Sbostic 	fp = fopen(f, "w+");
29*46111Sbostic 	e = errno;
30*46111Sbostic 	(void) unlink(f);
31*46111Sbostic 	errno = e;
32*46111Sbostic 	return (fp);
33*46111Sbostic }
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