xref: /illumos-gate/usr/src/cmd/lp/filter/postscript/common/tempnam.c (revision eb00b1c8a31c2253a353644606388dff5b0e0275)
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 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 #ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.1	*/
27 #include <stdio.h>
28 #include <errno.h>
29 
30 #if defined(V9) || defined(BSD4_2)
31 char *tempnam(dir, pfx)
32 char *dir, *pfx;
33 {
34 	int pid;
35 	unsigned int len;
36 	char *tnm, *malloc();
37 	static int seq = 0;
38 
39 	pid = getpid();
40 	len = strlen(dir) + strlen(pfx) + 10;
41 	if ((tnm = malloc(len)) != NULL) {
42 		sprintf(tnm, "%s", dir);
43 		if (access(tnm, 7) == -1)
44 			return(NULL);
45 		do {
46 			sprintf(tnm, "%s/%s%d%d", dir, pfx, pid, seq++);
47 			errno = 0;
48 			if (access(tnm, 7) == -1)
49 				if (errno == ENOENT)
50 					return(tnm);
51 		} while (1);
52 	}
53 	return(tnm);
54 }
55 #endif
56