stat.h 7.4 KB

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  1. /* Copyright (C) 1999-2016 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <http://www.gnu.org/licenses/>. */
  14. #if !defined _SYS_STAT_H && !defined _FCNTL_H
  15. # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
  16. #endif
  17. #ifndef _BITS_STAT_H
  18. #define _BITS_STAT_H 1
  19. /* Versions of the `struct stat' data structure. */
  20. #ifndef __x86_64__
  21. # define _STAT_VER_LINUX_OLD 1
  22. # define _STAT_VER_KERNEL 1
  23. # define _STAT_VER_SVR4 2
  24. # define _STAT_VER_LINUX 3
  25. /* i386 versions of the `xmknod' interface. */
  26. # define _MKNOD_VER_LINUX 1
  27. # define _MKNOD_VER_SVR4 2
  28. # define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */
  29. #else
  30. # define _STAT_VER_KERNEL 0
  31. # define _STAT_VER_LINUX 1
  32. /* x86-64 versions of the `xmknod' interface. */
  33. # define _MKNOD_VER_LINUX 0
  34. #endif
  35. #define _STAT_VER _STAT_VER_LINUX
  36. struct stat
  37. {
  38. __dev_t st_dev; /* Device. */
  39. #ifndef __x86_64__
  40. unsigned short int __pad1;
  41. #endif
  42. #if defined __x86_64__ || !defined __USE_FILE_OFFSET64
  43. __ino_t st_ino; /* File serial number. */
  44. #else
  45. __ino_t __st_ino; /* 32bit file serial number. */
  46. #endif
  47. #ifndef __x86_64__
  48. __mode_t st_mode; /* File mode. */
  49. __nlink_t st_nlink; /* Link count. */
  50. #else
  51. __nlink_t st_nlink; /* Link count. */
  52. __mode_t st_mode; /* File mode. */
  53. #endif
  54. __uid_t st_uid; /* User ID of the file's owner. */
  55. __gid_t st_gid; /* Group ID of the file's group.*/
  56. #ifdef __x86_64__
  57. int __pad0;
  58. #endif
  59. __dev_t st_rdev; /* Device number, if device. */
  60. #ifndef __x86_64__
  61. unsigned short int __pad2;
  62. #endif
  63. #if defined __x86_64__ || !defined __USE_FILE_OFFSET64
  64. __off_t st_size; /* Size of file, in bytes. */
  65. #else
  66. __off64_t st_size; /* Size of file, in bytes. */
  67. #endif
  68. __blksize_t st_blksize; /* Optimal block size for I/O. */
  69. #if defined __x86_64__ || !defined __USE_FILE_OFFSET64
  70. __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */
  71. #else
  72. __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
  73. #endif
  74. #ifdef __USE_XOPEN2K8
  75. /* Nanosecond resolution timestamps are stored in a format
  76. equivalent to 'struct timespec'. This is the type used
  77. whenever possible but the Unix namespace rules do not allow the
  78. identifier 'timespec' to appear in the <sys/stat.h> header.
  79. Therefore we have to handle the use of this header in strictly
  80. standard-compliant sources special. */
  81. struct timespec st_atim; /* Time of last access. */
  82. struct timespec st_mtim; /* Time of last modification. */
  83. struct timespec st_ctim; /* Time of last status change. */
  84. # define st_atime st_atim.tv_sec /* Backward compatibility. */
  85. # define st_mtime st_mtim.tv_sec
  86. # define st_ctime st_ctim.tv_sec
  87. #else
  88. __time_t st_atime; /* Time of last access. */
  89. __syscall_ulong_t st_atimensec; /* Nscecs of last access. */
  90. __time_t st_mtime; /* Time of last modification. */
  91. __syscall_ulong_t st_mtimensec; /* Nsecs of last modification. */
  92. __time_t st_ctime; /* Time of last status change. */
  93. __syscall_ulong_t st_ctimensec; /* Nsecs of last status change. */
  94. #endif
  95. #ifdef __x86_64__
  96. __syscall_slong_t __glibc_reserved[3];
  97. #else
  98. # ifndef __USE_FILE_OFFSET64
  99. unsigned long int __glibc_reserved4;
  100. unsigned long int __glibc_reserved5;
  101. # else
  102. __ino64_t st_ino; /* File serial number. */
  103. # endif
  104. #endif
  105. };
  106. #ifdef __USE_LARGEFILE64
  107. /* Note stat64 has the same shape as stat for x86-64. */
  108. struct stat64
  109. {
  110. __dev_t st_dev; /* Device. */
  111. # ifdef __x86_64__
  112. __ino64_t st_ino; /* File serial number. */
  113. __nlink_t st_nlink; /* Link count. */
  114. __mode_t st_mode; /* File mode. */
  115. # else
  116. unsigned int __pad1;
  117. __ino_t __st_ino; /* 32bit file serial number. */
  118. __mode_t st_mode; /* File mode. */
  119. __nlink_t st_nlink; /* Link count. */
  120. # endif
  121. __uid_t st_uid; /* User ID of the file's owner. */
  122. __gid_t st_gid; /* Group ID of the file's group.*/
  123. # ifdef __x86_64__
  124. int __pad0;
  125. __dev_t st_rdev; /* Device number, if device. */
  126. __off_t st_size; /* Size of file, in bytes. */
  127. # else
  128. __dev_t st_rdev; /* Device number, if device. */
  129. unsigned int __pad2;
  130. __off64_t st_size; /* Size of file, in bytes. */
  131. # endif
  132. __blksize_t st_blksize; /* Optimal block size for I/O. */
  133. __blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */
  134. # ifdef __USE_XOPEN2K8
  135. /* Nanosecond resolution timestamps are stored in a format
  136. equivalent to 'struct timespec'. This is the type used
  137. whenever possible but the Unix namespace rules do not allow the
  138. identifier 'timespec' to appear in the <sys/stat.h> header.
  139. Therefore we have to handle the use of this header in strictly
  140. standard-compliant sources special. */
  141. struct timespec st_atim; /* Time of last access. */
  142. struct timespec st_mtim; /* Time of last modification. */
  143. struct timespec st_ctim; /* Time of last status change. */
  144. # else
  145. __time_t st_atime; /* Time of last access. */
  146. __syscall_ulong_t st_atimensec; /* Nscecs of last access. */
  147. __time_t st_mtime; /* Time of last modification. */
  148. __syscall_ulong_t st_mtimensec; /* Nsecs of last modification. */
  149. __time_t st_ctime; /* Time of last status change. */
  150. __syscall_ulong_t st_ctimensec; /* Nsecs of last status change. */
  151. # endif
  152. # ifdef __x86_64__
  153. __syscall_slong_t __glibc_reserved[3];
  154. # else
  155. __ino64_t st_ino; /* File serial number. */
  156. # endif
  157. };
  158. #endif
  159. /* Tell code we have these members. */
  160. #define _STATBUF_ST_BLKSIZE
  161. #define _STATBUF_ST_RDEV
  162. /* Nanosecond resolution time values are supported. */
  163. #define _STATBUF_ST_NSEC
  164. /* Encoding of the file mode. */
  165. #define __S_IFMT 0170000 /* These bits determine file type. */
  166. /* File types. */
  167. #define __S_IFDIR 0040000 /* Directory. */
  168. #define __S_IFCHR 0020000 /* Character device. */
  169. #define __S_IFBLK 0060000 /* Block device. */
  170. #define __S_IFREG 0100000 /* Regular file. */
  171. #define __S_IFIFO 0010000 /* FIFO. */
  172. #define __S_IFLNK 0120000 /* Symbolic link. */
  173. #define __S_IFSOCK 0140000 /* Socket. */
  174. /* POSIX.1b objects. Note that these macros always evaluate to zero. But
  175. they do it by enforcing the correct use of the macros. */
  176. #define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode)
  177. #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
  178. #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
  179. /* Protection bits. */
  180. #define __S_ISUID 04000 /* Set user ID on execution. */
  181. #define __S_ISGID 02000 /* Set group ID on execution. */
  182. #define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
  183. #define __S_IREAD 0400 /* Read by owner. */
  184. #define __S_IWRITE 0200 /* Write by owner. */
  185. #define __S_IEXEC 0100 /* Execute by owner. */
  186. #ifdef __USE_ATFILE
  187. # define UTIME_NOW ((1l << 30) - 1l)
  188. # define UTIME_OMIT ((1l << 30) - 2l)
  189. #endif
  190. #endif /* bits/stat.h */