2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1988, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char sccsid[] = "@(#)tempnam.c 8.1 (Berkeley) 6/4/93";
34 #endif /* LIBC_SCCS and not lint */
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/param.h>
46 __warn_references(tempnam,
47 "warning: tempnam() possibly used unsafely; consider using mkstemp()");
49 extern char *_mktemp(char *);
52 tempnam(const char *dir, const char *pfx)
57 if (!(name = malloc(MAXPATHLEN)))
63 if (issetugid() == 0 && (f = getenv("TMPDIR"))) {
64 (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
65 *(f + strlen(f) - 1) == '/'? "": "/", pfx);
66 if ((f = _mktemp(name)))
70 if ((f = (char *)dir)) {
71 (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
72 *(f + strlen(f) - 1) == '/'? "": "/", pfx);
73 if ((f = _mktemp(name)))
78 (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
79 if ((f = _mktemp(name)))
83 (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
84 if ((f = _mktemp(name)))