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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 | ||
e5dc681a | 27 | |
34dc7c2f BB |
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 | #ifdef _LP64 | |
40 | #define TMPPATHFMT "%s/uu%ld" | |
41 | #else /* _LP64 */ | |
42 | #define TMPPATHFMT "%s/uu%lld" | |
43 | #endif /* _LP64 */ | |
44 | ||
45 | /*ARGSUSED*/ | |
46 | int | |
47 | uu_open_tmp(const char *dir, uint_t uflags) | |
48 | { | |
49 | int f; | |
50 | char *fname = uu_zalloc(PATH_MAX); | |
51 | ||
52 | if (fname == NULL) | |
53 | return (-1); | |
54 | ||
55 | for (;;) { | |
56 | (void) snprintf(fname, PATH_MAX, "%s/uu%lld", dir, gethrtime()); | |
57 | ||
58 | f = open(fname, O_CREAT | O_EXCL | O_RDWR, 0600); | |
59 | ||
60 | if (f >= 0 || errno != EEXIST) | |
61 | break; | |
62 | } | |
63 | ||
64 | if (f >= 0) | |
65 | (void) unlink(fname); | |
66 | ||
67 | uu_free(fname); | |
68 | ||
69 | return (f); | |
70 | } |