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/* really matches stat64 in the kernel, hence the padding
41 * Note: The kernel zero's the padded region because glibc might read them
42 * in the hope that the kernel has stretched to using larger sizes.
43 */
44#ifdef __mips__
45struct stat {
46    unsigned long       st_dev;
47    unsigned long       __pad0[3];
48
49    unsigned long long  st_ino;
50
51    unsigned int        st_mode;
52    unsigned int        st_nlink;
53
54    unsigned long       st_uid;
55    unsigned long       st_gid;
56
57    unsigned long       st_rdev;
58    unsigned long       __pad1[3];
59
60    long long           st_size;
61
62    unsigned long       st_atime;
63    unsigned long       st_atime_nsec;
64
65    unsigned long       st_mtime;
66    unsigned long       st_mtime_nsec;
67
68    unsigned long       st_ctime;
69    unsigned long       st_ctime_nsec;
70
71    unsigned long       st_blksize;
72    unsigned long       __pad2;
73
74    unsigned long long  st_blocks;
75};
76#else
77struct stat {
78    unsigned long long  st_dev;
79    unsigned char       __pad0[4];
80
81    unsigned long       __st_ino;
82    unsigned int        st_mode;
83    unsigned int        st_nlink;
84
85    unsigned long       st_uid;
86    unsigned long       st_gid;
87
88    unsigned long long  st_rdev;
89    unsigned char       __pad3[4];
90
91    long long           st_size;
92    unsigned long	st_blksize;
93    unsigned long long  st_blocks;
94
95    unsigned long       st_atime;
96    unsigned long       st_atime_nsec;
97
98    unsigned long       st_mtime;
99    unsigned long       st_mtime_nsec;
100
101    unsigned long       st_ctime;
102    unsigned long       st_ctime_nsec;
103
104    unsigned long long  st_ino;
105};
106#endif
107
108/* For compatibility with GLibc, we provide macro aliases
109 * for the non-Posix nano-seconds accessors.
110 */
111#define  st_atimensec  st_atime_nsec
112#define  st_mtimensec  st_mtime_nsec
113#define  st_ctimensec  st_ctime_nsec
114
115#ifdef __USE_BSD
116/* Permission macros provided by glibc for compatibility with BSDs. */
117#define ACCESSPERMS (S_IRWXU | S_IRWXG | S_IRWXO) /* 0777 */
118#define ALLPERMS    (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO) /* 07777 */
119#define DEFFILEMODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) /* 0666 */
120#endif
121
122extern int    chmod(const char *, mode_t);
123extern int    fchmod(int, mode_t);
124extern int    mkdir(const char *, mode_t);
125
126extern int    stat(const char *, struct stat *);
127extern int    fstat(int, struct stat *);
128extern int    lstat(const char *, struct stat *);
129extern int    mknod(const char *, mode_t, dev_t);
130extern mode_t umask(mode_t);
131
132#if defined(__BIONIC_FORTIFY)
133
134extern mode_t __umask_chk(mode_t);
135extern mode_t __umask_real(mode_t)
136    __asm__(__USER_LABEL_PREFIX__ "umask");
137__errordecl(__umask_invalid_mode, "umask called with invalid mode");
138
139__BIONIC_FORTIFY_INLINE
140mode_t umask(mode_t mode) {
141#if !defined(__clang__)
142  if (__builtin_constant_p(mode)) {
143    if ((mode & 0777) != mode) {
144      __umask_invalid_mode();
145    }
146    return __umask_real(mode);
147  }
148#endif
149  return __umask_chk(mode);
150}
151#endif /* defined(__BIONIC_FORTIFY) */
152
153
154#define  stat64    stat
155#define  fstat64   fstat
156#define  lstat64   lstat
157
158static __inline__ int mkfifo(const char *__p, mode_t __m)
159{
160  return mknod(__p, (__m & ~S_IFMT) | S_IFIFO, (dev_t)0);
161}
162
163extern int  fstatat(int dirfd, const char *path, struct stat *buf, int flags);
164extern int  mkdirat(int dirfd, const char *pathname, mode_t mode);
165extern int fchownat(int dirfd, const char *path, uid_t owner, gid_t group, int flags);
166extern int fchmodat(int dirfd, const char *path, mode_t mode, int flags);
167extern int renameat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath);
168
169# define UTIME_NOW      ((1l << 30) - 1l)
170# define UTIME_OMIT     ((1l << 30) - 2l)
171extern int utimensat(int fd, const char *path, const struct timespec times[2], int flags);
172extern int futimens(int fd, const struct timespec times[2]);
173
174__END_DECLS
175
176#endif /* _SYS_STAT_H_ */
177