projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b2abdfb | 1 | /*- |
| 9385eb3d | 2 | * Copyright (c) 1990, 1993, 1994 |
| e9ce8d39 A |
3 | * The Regents of the University of California. All rights reserved. |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * Chris Torek. | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in the | |
| 15 | * documentation and/or other materials provided with the distribution. | |
| e9ce8d39 A |
16 | * 4. Neither the name of the University nor the names of its contributors |
| 17 | * may be used to endorse or promote products derived from this software | |
| 18 | * without specific prior written permission. | |
| 19 | * | |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 30 | * SUCH DAMAGE. | |
| 31 | */ | |
| 32 | ||
| 33 | #if defined(LIBC_SCCS) && !defined(lint) | |
| 9385eb3d | 34 | static char sccsid[] = "@(#)tmpnam.c 8.3 (Berkeley) 3/28/94"; |
| e9ce8d39 | 35 | #endif /* LIBC_SCCS and not lint */ |
| 9385eb3d | 36 | #include <sys/cdefs.h> |
| 1f2f436a | 37 | __FBSDID("$FreeBSD: src/lib/libc/stdio/tmpnam.c,v 1.6 2007/01/09 00:28:07 imp Exp $"); |
| e9ce8d39 | 38 | |
| 5b2abdfb | 39 | #include <sys/types.h> |
| 9385eb3d | 40 | |
| e9ce8d39 | 41 | #include <stdio.h> |
| 9385eb3d | 42 | #include <unistd.h> |
| ad3c9f2a A |
43 | #include <pthread.h> |
| 44 | #include <stdlib.h> | |
| 9385eb3d A |
45 | |
| 46 | __warn_references(tmpnam, | |
| 47 | "warning: tmpnam() possibly used unsafely; consider using mkstemp()"); | |
| 48 | ||
| 49 | extern char *_mktemp(char *); | |
| e9ce8d39 | 50 | |
| ad3c9f2a A |
51 | static char *tmpnam_buf = NULL; |
| 52 | static pthread_once_t tmpnam_buf_control = PTHREAD_ONCE_INIT; | |
| 53 | ||
| 54 | static void tmpnam_buf_allocate(void) | |
| 55 | { | |
| 56 | tmpnam_buf = malloc(L_tmpnam); | |
| 57 | } | |
| 58 | ||
| 9385eb3d A |
59 | char * |
| 60 | tmpnam(s) | |
| 61 | char *s; | |
| e9ce8d39 | 62 | { |
| 9385eb3d | 63 | static u_long tmpcount; |
| 5b2abdfb | 64 | |
| ad3c9f2a A |
65 | if (s == NULL) { |
| 66 | if (pthread_once(&tmpnam_buf_control, tmpnam_buf_allocate) | |
| 67 | || !tmpnam_buf) { | |
| 68 | return NULL; | |
| 69 | } | |
| 70 | s = tmpnam_buf; | |
| 71 | } | |
| 9385eb3d A |
72 | (void)snprintf(s, L_tmpnam, "%stmp.%lu.XXXXXX", P_tmpdir, tmpcount); |
| 73 | ++tmpcount; | |
| 74 | return (_mktemp(s)); | |
| e9ce8d39 | 75 | } |