1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "apr_private.h"
18 #include "apr_file_io.h" /* prototype of apr_mkstemp() */
19 #include "apr_strings.h" /* prototype of apr_mkstemp() */
20 #include "apr_arch_file_io.h" /* prototype of apr_mkstemp() */
21 #include "apr_portable.h" /* for apr_os_file_put() */
22 #include "apr_arch_inherit.h"
23
24 #include <stdlib.h> /* for mkstemp() - Single Unix */
25
apr_file_mktemp(apr_file_t ** fp,char * template,apr_int32_t flags,apr_pool_t * p)26 APR_DECLARE(apr_status_t) apr_file_mktemp(apr_file_t **fp, char *template, apr_int32_t flags, apr_pool_t *p)
27 {
28 int fd;
29 apr_status_t rv;
30
31 flags = (!flags) ? APR_FOPEN_CREATE | APR_FOPEN_READ | APR_FOPEN_WRITE |
32 APR_FOPEN_DELONCLOSE : flags & ~APR_FOPEN_EXCL;
33
34 fd = mkstemp(template);
35 if (fd == -1) {
36 return errno;
37 }
38 /* We need to reopen the file to get rid of the o_excl flag.
39 * Otherwise file locking will not allow the file to be shared.
40 */
41 close(fd);
42 if ((rv = apr_file_open(fp, template, flags|APR_FOPEN_NOCLEANUP,
43 APR_UREAD | APR_UWRITE, p)) == APR_SUCCESS) {
44
45
46 if (!(flags & APR_FOPEN_NOCLEANUP)) {
47 int flags;
48
49 if ((flags = fcntl((*fp)->filedes, F_GETFD)) == -1)
50 return errno;
51
52 flags |= FD_CLOEXEC;
53 if (fcntl((*fp)->filedes, F_SETFD, flags) == -1)
54 return errno;
55
56 apr_pool_cleanup_register((*fp)->pool, (void *)(*fp),
57 apr_unix_file_cleanup,
58 apr_unix_child_file_cleanup);
59 }
60 }
61
62 return rv;
63 }
64
65