1 #if defined(LIBC_SCCS) && !defined(lint)
2 static const char sccsid[] = "@(#)mktemp.c 8.1 (Berkeley) 6/4/93";
3 static const char rcsid[] = "$Id: mktemp.c,v 1.1 2001/03/29 06:30:33 marka Exp $";
4 #endif /* LIBC_SCCS and not lint */
7 * Copyright (c) 1987, 1993
8 * The Regents of the University of California. All rights reserved.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
42 * Permission to use, copy, modify, and distribute this software for any
43 * purpose with or without fee is hereby granted, provided that the above
44 * copyright notice and this permission notice appear in all copies, and that
45 * the name of Digital Equipment Corporation not be used in advertising or
46 * publicity pertaining to distribution of the document or software without
47 * specific, written prior permission.
49 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
50 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
51 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
52 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
53 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
54 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
55 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
59 #include "port_before.h"
61 #include <sys/types.h>
69 #include "port_after.h"
71 #if (!defined(NEED_MKTEMP)) && (!defined(NEED_MKSTEMP))
72 int __mktemp_unneeded__;
75 static int gettemp(char *path, int *doopen);
81 return (gettemp(path, &fd) ? fd : -1);
88 return(gettemp(path, (int *)NULL) ? path : (char *)NULL);
93 gettemp(char *path, int *doopen) {
99 for (trv = path; *trv; ++trv); /* extra X's get set to 0's */
100 while (*--trv == 'X') {
101 *trv = (pid % 10) + '0';
106 * check the target directory; if you have six X's and it
107 * doesn't exist this runs for a *very* long time.
109 for (start = trv + 1;; --trv) {
114 if (stat(path, &sbuf))
116 if (!S_ISDIR(sbuf.st_mode)) {
128 open(path, O_CREAT|O_EXCL|O_RDWR, 0600)) >= 0)
133 else if (stat(path, &sbuf))
134 return(errno == ENOENT ? 1 : 0);
136 /* tricky little algorithm for backward compatibility */
137 for (trv = start;;) {
154 #endif /*NEED_MKTEMP*/