stat.h revision 0c92e8c3d19de86282d5f95ea0fdc7ff5cd9ed03 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _SYS_STAT_H_
30#define _SYS_STAT_H_
31
32#include <linux/stat.h>
33#include <machine/timespec.h>
34#include <sys/cdefs.h>
35#include <sys/types.h>
36
37__BEGIN_DECLS
38
39#if defined(__aarch64__)
40#define __STAT64_BODY \
41  unsigned long st_dev; \
42  unsigned long st_ino; \
43  unsigned int st_mode; \
44  unsigned int st_nlink; \
45  uid_t st_uid; \
46  gid_t st_gid; \
47  unsigned long st_rdev; \
48  unsigned long __pad1; \
49  long st_size; \
50  int st_blksize; \
51  int __pad2; \
52  long st_blocks; \
53  struct timespec st_atim; \
54  struct timespec st_mtim; \
55  struct timespec st_ctim; \
56  unsigned int __unused4; \
57  unsigned int __unused5; \
58
59#elif defined(__mips__)
60#define __STAT64_BODY \
61  unsigned int st_dev; \
62  unsigned int __pad0[3]; \
63  unsigned long long st_ino; \
64  unsigned int st_mode; \
65  unsigned int st_nlink; \
66  uid_t st_uid; \
67  gid_t st_gid; \
68  unsigned int st_rdev; \
69  unsigned int __pad1[3]; \
70  long long st_size; \
71  struct timespec st_atim; \
72  struct timespec st_mtim; \
73  struct timespec st_ctim; \
74  unsigned int st_blksize; \
75  unsigned int __pad2; \
76  unsigned long long st_blocks; \
77
78#elif defined(__x86_64__)
79#define __STAT64_BODY \
80  dev_t st_dev; \
81  ino_t st_ino; \
82  unsigned long st_nlink; \
83  mode_t st_mode; \
84  uid_t st_uid; \
85  gid_t st_gid; \
86  unsigned int __pad0; \
87  dev_t st_rdev; \
88  off_t st_size; \
89  long st_blksize; \
90  long st_blocks; \
91  struct timespec st_atim; \
92  struct timespec st_mtim; \
93  struct timespec st_ctim; \
94  long __pad3[3]; \
95
96#else
97#define __STAT64_BODY \
98  unsigned long long st_dev; \
99  unsigned char __pad0[4]; \
100  unsigned long __st_ino; \
101  unsigned int st_mode; \
102  unsigned int st_nlink; \
103  uid_t st_uid; \
104  gid_t st_gid; \
105  unsigned long long st_rdev; \
106  unsigned char __pad3[4]; \
107  long long st_size; \
108  unsigned long st_blksize; \
109  unsigned long long st_blocks; \
110  struct timespec st_atim; \
111  struct timespec st_mtim; \
112  struct timespec st_ctim; \
113  unsigned long long st_ino; \
114
115#endif
116
117struct stat { __STAT64_BODY };
118struct stat64 { __STAT64_BODY };
119
120#undef __STAT64_BODY
121
122/* Compatibility with older versions of POSIX. */
123#define st_atime st_atim.tv_sec
124#define st_mtime st_mtim.tv_sec
125#define st_ctime st_ctim.tv_sec
126/* Compatibility with glibc. */
127#define st_atimensec st_atim.tv_nsec
128#define st_mtimensec st_mtim.tv_nsec
129#define st_ctimensec st_ctim.tv_nsec
130
131#ifdef __USE_BSD
132/* Permission macros provided by glibc for compatibility with BSDs. */
133#define ACCESSPERMS (S_IRWXU | S_IRWXG | S_IRWXO) /* 0777 */
134#define ALLPERMS    (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO) /* 07777 */
135#define DEFFILEMODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) /* 0666 */
136#endif
137
138extern int chmod(const char*, mode_t);
139extern int fchmod(int, mode_t);
140extern int mkdir(const char*, mode_t);
141
142extern int fstat(int, struct stat*);
143extern int fstat64(int, struct stat64*);
144extern int fstatat(int, const char*, struct stat*, int);
145extern int fstatat64(int, const char*, struct stat64*, int);
146extern int lstat(const char*, struct stat*);
147extern int lstat64(const char*, struct stat64*);
148extern int stat(const char*, struct stat*);
149extern int stat64(const char*, struct stat64*);
150
151extern int mknod(const char*, mode_t, dev_t);
152extern mode_t umask(mode_t);
153
154extern mode_t __umask_chk(mode_t);
155extern mode_t __umask_real(mode_t) __RENAME(umask);
156__errordecl(__umask_invalid_mode, "umask called with invalid mode");
157
158#if defined(__BIONIC_FORTIFY)
159
160__BIONIC_FORTIFY_INLINE
161mode_t umask(mode_t mode) {
162#if !defined(__clang__)
163  if (__builtin_constant_p(mode)) {
164    if ((mode & 0777) != mode) {
165      __umask_invalid_mode();
166    }
167    return __umask_real(mode);
168  }
169#endif
170  return __umask_chk(mode);
171}
172#endif /* defined(__BIONIC_FORTIFY) */
173
174extern int mkfifo(const char*, mode_t);
175extern int mkfifoat(int, const char*, mode_t);
176
177extern int fchmodat(int, const char*, mode_t, int);
178extern int mkdirat(int, const char*, mode_t);
179extern int mknodat(int, const char*, mode_t, dev_t);
180
181#define UTIME_NOW  ((1L << 30) - 1L)
182#define UTIME_OMIT ((1L << 30) - 2L)
183extern int utimensat(int fd, const char *path, const struct timespec times[2], int flags);
184extern int futimens(int fd, const struct timespec times[2]);
185
186__END_DECLS
187
188#endif /* _SYS_STAT_H_ */
189