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__ 45 struct 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 77 struct 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 121 122 extern int chmod(const char *, mode_t); 123 extern int fchmod(int, mode_t); 124 extern int mkdir(const char *, mode_t); 125 126 extern int stat(const char *, struct stat *); 127 extern int fstat(int, struct stat *); 128 extern int lstat(const char *, struct stat *); 129 extern int mknod(const char *, mode_t, dev_t); 130 extern mode_t umask(mode_t); 131 132 #if defined(__BIONIC_FORTIFY) 133 134 extern mode_t __umask_chk(mode_t); 135 extern 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 140 mode_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 157 158 static __inline__ int mkfifo(const char *__p, mode_t __m) 159 { 160 return mknod(__p, (__m & ~S_IFMT) | S_IFIFO, (dev_t)0); 161 } 162 163 extern int fstatat(int dirfd, const char *path, struct stat *buf, int flags); 164 extern int mkdirat(int dirfd, const char *pathname, mode_t mode); 165 extern int fchownat(int dirfd, const char *path, uid_t owner, gid_t group, int flags); 166 extern int fchmodat(int dirfd, const char *path, mode_t mode, int flags); 167 extern 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) 171 extern int utimensat(int fd, const char *path, const struct timespec times[2], int flags); 172 extern int futimens(int fd, const struct timespec times[2]); 173 174 __END_DECLS 175 176 #endif /* _SYS_STAT_H_ */ 177
