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
26APR_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