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__) || (defined(__mips__) && defined(__LP64__))
41 #define __STAT64_BODY \
42   unsigned long st_dev; \
43   unsigned long st_ino; \
44   unsigned int st_mode; \
45   unsigned int st_nlink; \
46   uid_t st_uid; \
47   gid_t 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__) && !defined(__LP64__)
64 #define __STAT64_BODY \
65   unsigned int st_dev; \
66   unsigned int __pad0[3]; \
67   unsigned long long st_ino; \
68   unsigned int st_mode; \
69   unsigned int st_nlink; \
70   uid_t st_uid; \
71   gid_t st_gid; \
72   unsigned int st_rdev; \
73   unsigned int __pad1[3]; \
74   long long st_size; \
75   unsigned int st_atime; \
76   unsigned int st_atime_nsec; \
77   unsigned int st_mtime; \
78   unsigned int st_mtime_nsec; \
79   unsigned int st_ctime; \
80   unsigned int st_ctime_nsec; \
81   unsigned int st_blksize; \
82   unsigned int __pad2; \
83   unsigned long long st_blocks; \
84 
85 #elif defined(__x86_64__)
86 #define __STAT64_BODY \
87   unsigned long st_dev; \
88   unsigned long st_ino; \
89   unsigned long st_nlink; \
90   unsigned int st_mode; \
91   uid_t st_uid; \
92   gid_t 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
107 #define __STAT64_BODY \
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   uid_t st_uid; \
114   gid_t 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 struct stat { __STAT64_BODY };
131 struct stat64 { __STAT64_BODY };
132 
133 #undef __STAT64_BODY
134 
135 #define st_atimensec st_atime_nsec
136 #define st_mtimensec st_mtime_nsec
137 #define st_ctimensec st_ctime_nsec
138 
139 #ifdef __USE_BSD
140 /* Permission macros provided by glibc for compatibility with BSDs. */
141 #define ACCESSPERMS (S_IRWXU | S_IRWXG | S_IRWXO) /* 0777 */
142 #define ALLPERMS    (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO) /* 07777 */
143 #define DEFFILEMODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) /* 0666 */
144 #endif
145 
146 extern int chmod(const char*, mode_t);
147 extern int fchmod(int, mode_t);
148 extern int mkdir(const char*, mode_t);
149 
150 extern int fstat(int, struct stat*);
151 extern int fstat64(int, struct stat64*);
152 extern int fstatat(int, const char*, struct stat*, int);
153 extern int fstatat64(int, const char*, struct stat64*, int);
154 extern int lstat(const char*, struct stat*);
155 extern int lstat64(const char*, struct stat64*);
156 extern int stat(const char*, struct stat*);
157 extern int stat64(const char*, struct stat64*);
158 
159 extern int mknod(const char*, mode_t, dev_t);
160 extern mode_t umask(mode_t);
161 
162 #if defined(__BIONIC_FORTIFY)
163 
164 extern mode_t __umask_chk(mode_t);
165 extern mode_t __umask_real(mode_t) __asm__(__USER_LABEL_PREFIX__ "umask");
166 __errordecl(__umask_invalid_mode, "umask called with invalid mode");
167 
168 __BIONIC_FORTIFY_INLINE
umask(mode_t mode)169 mode_t umask(mode_t mode) {
170 #if !defined(__clang__)
171   if (__builtin_constant_p(mode)) {
172     if ((mode & 0777) != mode) {
173       __umask_invalid_mode();
174     }
175     return __umask_real(mode);
176   }
177 #endif
178   return __umask_chk(mode);
179 }
180 #endif /* defined(__BIONIC_FORTIFY) */
181 
182 extern int mkfifo(const char*, mode_t);
183 
184 extern int fchmodat(int, const char*, mode_t, int);
185 extern int mkdirat(int, const char*, mode_t);
186 extern int mknodat(int, const char*, mode_t, dev_t);
187 
188 #define UTIME_NOW  ((1L << 30) - 1L)
189 #define UTIME_OMIT ((1L << 30) - 2L)
190 extern int utimensat(int fd, const char *path, const struct timespec times[2], int flags);
191 extern int futimens(int fd, const struct timespec times[2]);
192 
193 __END_DECLS
194 
195 #endif /* _SYS_STAT_H_ */
196