stat.h revision b8fa5b1ca9fc9b8b92875d2d9f33df3c8310aa09 
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#ifndef _SYS_STAT_H_
29#define _SYS_STAT_H_
30
31#include <sys/cdefs.h>
32#include <sys/types.h>
33#include <sys/time.h>
34#include <linux/stat.h>
35
36#include <endian.h>
37
38__BEGIN_DECLS
39
40#if defined(__aarch64__)
41struct stat {
42  unsigned long st_dev;
43  unsigned long st_ino;
44  unsigned int st_mode;
45  unsigned int st_nlink;
46  unsigned int st_uid;
47  unsigned int st_gid;
48  unsigned long st_rdev;
49  unsigned long __pad1;
50  long st_size;
51  int st_blksize;
52  int __pad2;
53  long st_blocks;
54  long st_atime;
55  unsigned long st_atime_nsec;
56  long st_mtime;
57  unsigned long st_mtime_nsec;
58  long st_ctime;
59  unsigned long st_ctime_nsec;
60  unsigned int __unused4;
61  unsigned int __unused5;
62};
63#elif defined(__mips__)
64struct stat {
65  unsigned long st_dev;
66  unsigned long __pad0[3];
67  unsigned long long st_ino;
68  unsigned int st_mode;
69  unsigned int st_nlink;
70  unsigned long st_uid;
71  unsigned long st_gid;
72  unsigned long st_rdev;
73  unsigned long __pad1[3];
74  long long st_size;
75  unsigned long st_atime;
76  unsigned long st_atime_nsec;
77  unsigned long st_mtime;
78  unsigned long st_mtime_nsec;
79  unsigned long st_ctime;
80  unsigned long st_ctime_nsec;
81  unsigned long st_blksize;
82  unsigned long __pad2;
83  unsigned long long st_blocks;
84};
85#elif defined(__x86_64__)
86struct stat {
87  unsigned long st_dev;
88  unsigned long st_ino;
89  unsigned long st_nlink;
90  unsigned int st_mode;
91  unsigned int st_uid;
92  unsigned int st_gid;
93  unsigned int __pad0;
94  unsigned long st_rdev;
95  long st_size;
96  long st_blksize;
97  long st_blocks;
98  unsigned long st_atime;
99  unsigned long st_atime_nsec;
100  unsigned long st_mtime;
101  unsigned long st_mtime_nsec;
102  unsigned long st_ctime;
103  unsigned long st_ctime_nsec;
104  long __pad3[3];
105};
106#else
107struct stat {
108  unsigned long long st_dev;
109  unsigned char __pad0[4];
110  unsigned long __st_ino;
111  unsigned int st_mode;
112  unsigned int st_nlink;
113  unsigned long st_uid;
114  unsigned long st_gid;
115  unsigned long long st_rdev;
116  unsigned char __pad3[4];
117  long long st_size;
118  unsigned long st_blksize;
119  unsigned long long st_blocks;
120  unsigned long st_atime;
121  unsigned long st_atime_nsec;
122  unsigned long st_mtime;
123  unsigned long st_mtime_nsec;
124  unsigned long st_ctime;
125  unsigned long st_ctime_nsec;
126  unsigned long long st_ino;
127};
128#endif
129
130/* For compatibility with GLibc, we provide macro aliases
131 * for the non-Posix nano-seconds accessors.
132 */
133#define  st_atimensec  st_atime_nsec
134#define  st_mtimensec  st_mtime_nsec
135#define  st_ctimensec  st_ctime_nsec
136
137#ifdef __USE_BSD
138/* Permission macros provided by glibc for compatibility with BSDs. */
139#define ACCESSPERMS (S_IRWXU | S_IRWXG | S_IRWXO) /* 0777 */
140#define ALLPERMS    (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO) /* 07777 */
141#define DEFFILEMODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) /* 0666 */
142#endif
143
144extern int    chmod(const char *, mode_t);
145extern int    fchmod(int, mode_t);
146extern int    mkdir(const char *, mode_t);
147
148extern int    stat(const char *, struct stat *);
149extern int    fstat(int, struct stat *);
150extern int    lstat(const char *, struct stat *);
151extern int    mknod(const char *, mode_t, dev_t);
152extern mode_t umask(mode_t);
153
154#if defined(__BIONIC_FORTIFY)
155
156extern mode_t __umask_chk(mode_t);
157extern mode_t __umask_real(mode_t)
158    __asm__(__USER_LABEL_PREFIX__ "umask");
159__errordecl(__umask_invalid_mode, "umask called with invalid mode");
160
161__BIONIC_FORTIFY_INLINE
162mode_t umask(mode_t mode) {
163#if !defined(__clang__)
164  if (__builtin_constant_p(mode)) {
165    if ((mode & 0777) != mode) {
166      __umask_invalid_mode();
167    }
168    return __umask_real(mode);
169  }
170#endif
171  return __umask_chk(mode);
172}
173#endif /* defined(__BIONIC_FORTIFY) */
174
175
176#define  stat64    stat
177#define  fstat64   fstat
178#define  lstat64   lstat
179
180extern int mkfifo(const char*, mode_t);
181
182extern int fchmodat(int, const char*, mode_t, int);
183extern int fstatat(int, const char*, struct stat*, int);
184extern int mkdirat(int, const char*, mode_t);
185extern int mknodat(int, const char*, mode_t, dev_t);
186
187# define UTIME_NOW      ((1l << 30) - 1l)
188# define UTIME_OMIT     ((1l << 30) - 2l)
189extern int utimensat(int fd, const char *path, const struct timespec times[2], int flags);
190extern int futimens(int fd, const struct timespec times[2]);
191
192__END_DECLS
193
194#endif /* _SYS_STAT_H_ */
195