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 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27
28
29#include "libuutil_common.h"
30
31#include <sys/time.h>
32
33#include <errno.h>
34#include <fcntl.h>
35#include <limits.h>
36#include <stdio.h>
37#include <unistd.h>
38
39/*ARGSUSED*/
40int
41uu_open_tmp(const char *dir, uint_t uflags)
42{
43	int f;
44	char *fname = uu_zalloc(PATH_MAX);
45
46	if (fname == NULL)
47		return (-1);
48
49	for (;;) {
50		(void) snprintf(fname, PATH_MAX, "%s/uu%lld", dir, gethrtime());
51
52		f = open(fname, O_CREAT | O_EXCL | O_RDWR | O_CLOEXEC, 0600);
53
54		if (f >= 0 || errno != EEXIST)
55			break;
56	}
57
58	if (f >= 0)
59		(void) unlink(fname);
60
61	uu_free(fname);
62
63	return (f);
64}
65