xref: /csrg-svn/lib/libc/stdio/tmpnam.c (revision 46559)
1 /*-
2  * Copyright (c) 1990 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Chris Torek.
7  *
8  * %sccs.include.redist.c%
9  */
10 
11 #if defined(LIBC_SCCS) && !defined(lint)
12 static char sccsid[] = "@(#)tmpnam.c	5.2 (Berkeley) 02/22/91";
13 #endif /* LIBC_SCCS and not lint */
14 
15 #include <sys/param.h>
16 #include <unistd.h>
17 #include <stdio.h>
18 
19 char *
20 tmpnam(s)
21 	char *s;
22 {
23 	static char buf[L_tmpnam];
24 
25 	if (s == NULL)
26 		s = buf;
27 	(void)snprintf(s, L_tmpnam, "%s/tmp.XXXXXX", P_tmpdir);
28 	return(mktemp(s));
29 }
30