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#ifndef INHERIT_H
18#define INHERIT_H
19
20#include "apr_inherit.h"
21
22#define APR_INHERIT (1 << 24)    /* Must not conflict with other bits */
23
24#define APR_IMPLEMENT_INHERIT_SET(name, flag, pool, cleanup)        \
25apr_status_t apr_##name##_inherit_set(apr_##name##_t *the##name)    \
26{                                                                   \
27    if (the##name->flag & APR_FOPEN_NOCLEANUP)                      \
28        return APR_EINVAL;                                          \
29    if (!(the##name->flag & APR_INHERIT)) {                         \
30        int flags = fcntl(the##name->name##des, F_GETFD);           \
31        if (flags == -1)                                            \
32            return errno;                                           \
33        flags &= ~(FD_CLOEXEC);                                     \
34        if (fcntl(the##name->name##des, F_SETFD, flags) == -1)      \
35            return errno;                                           \
36        the##name->flag |= APR_INHERIT;                             \
37        apr_pool_child_cleanup_set(the##name->pool,                 \
38                                   (void *)the##name,               \
39                                   cleanup, apr_pool_cleanup_null); \
40    }                                                               \
41    return APR_SUCCESS;                                             \
42}
43
44#define APR_IMPLEMENT_INHERIT_UNSET(name, flag, pool, cleanup)      \
45apr_status_t apr_##name##_inherit_unset(apr_##name##_t *the##name)  \
46{                                                                   \
47    if (the##name->flag & APR_FOPEN_NOCLEANUP)                      \
48        return APR_EINVAL;                                          \
49    if (the##name->flag & APR_INHERIT) {                            \
50        int flags;                                                  \
51        if ((flags = fcntl(the##name->name##des, F_GETFD)) == -1)   \
52            return errno;                                           \
53        flags |= FD_CLOEXEC;                                        \
54        if (fcntl(the##name->name##des, F_SETFD, flags) == -1)      \
55            return errno;                                           \
56        the##name->flag &= ~APR_INHERIT;                            \
57        apr_pool_child_cleanup_set(the##name->pool,                 \
58                                   (void *)the##name,               \
59                                   cleanup, cleanup);               \
60    }                                                               \
61    return APR_SUCCESS;                                             \
62}
63
64#endif	/* ! INHERIT_H */
65