Home | History | Annotate | Download | only in sys
      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
    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