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 1989 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1984 AT&T */
28 /* All Rights Reserved */
29
30 #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.2 */
31
32 /*LINTLIBRARY*/
33 #include <stdio.h>
34
35 extern char *mktemp(), *strcpy(), *strcat();
36 static char str[L_tmpnam], seed[] = { 'a', 'a', 'a', '\0' };
37
38 char *
tmpnam(s)39 tmpnam(s)
40 char *s;
41 {
42 register char *p, *q;
43 register int cnt = 0;
44
45 p = (s == NULL)? str: s;
46 (void) strcpy(p, P_tmpdir);
47 (void) strcat(p, seed);
48 (void) strcat(p, "XXXXXX");
49
50 q = seed;
51 while(*q == 'z') {
52 *q++ = 'a';
53 cnt++;
54 }
55 if (cnt < 3)
56 ++*q;
57
58 (void) mktemp(p);
59 return(p);
60 }
61