stat.h 6.0 KB

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  1. /* Copyright (C) 1992, 1995-2005, 2007 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, write to the Free
  13. Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  14. Boston, MA 02110-1301, USA. */
  15. #ifndef _SYS_STAT_H
  16. # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
  17. #endif
  18. /* Versions of the `struct stat' data structure. */
  19. #define _STAT_VER_KERNEL 0
  20. #define _STAT_VER_LINUX 1
  21. #define _STAT_VER _STAT_VER_LINUX
  22. /* Versions of the `xmknod' interface. */
  23. #define _MKNOD_VER_LINUX 0
  24. struct stat
  25. {
  26. __dev_t st_dev; /* Device. */
  27. #ifndef __USE_FILE_OFFSET64
  28. __ino_t st_ino; /* File serial number. */
  29. #else
  30. __ino64_t st_ino; /* File serial number. */
  31. #endif
  32. __mode_t st_mode; /* File mode. */
  33. __nlink_t st_nlink; /* Link count. */
  34. __uid_t st_uid; /* User ID of the file's owner. */
  35. __gid_t st_gid; /* Group ID of the file's group.*/
  36. __dev_t st_rdev; /* Device number, if device. */
  37. #ifndef __USE_FILE_OFFSET64
  38. __off_t st_size; /* Size of file, in bytes. */
  39. #else
  40. __off64_t st_size; /* Size of file, in bytes. */
  41. #endif
  42. __blksize_t st_blksize; /* Optimal block size for I/O. */
  43. #ifndef __USE_FILE_OFFSET64
  44. __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */
  45. #else
  46. unsigned long __pad2;
  47. __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
  48. #endif
  49. #if 0 /*def __USE_MISC*/
  50. /* Nanosecond resolution timestamps are stored in a format
  51. equivalent to 'struct timespec'. This is the type used
  52. whenever possible but the Unix namespace rules do not allow the
  53. identifier 'timespec' to appear in the <sys/stat.h> header.
  54. Therefore we have to handle the use of this header in strictly
  55. standard-compliant sources special. */
  56. struct timespec st_atim; /* Time of last access. */
  57. struct timespec st_mtim; /* Time of last modification. */
  58. struct timespec st_ctim; /* Time of last status change. */
  59. # define st_atime st_atim.tv_sec /* Backward compatibility. */
  60. # define st_mtime st_mtim.tv_sec
  61. # define st_ctime st_ctim.tv_sec
  62. #else
  63. __time_t st_atime; /* Time of last access. */
  64. unsigned long int st_atimensec; /* Nscecs of last access. */
  65. __time_t st_mtime; /* Time of last modification. */
  66. unsigned long int st_mtimensec; /* Nsecs of last modification. */
  67. __time_t st_ctime; /* Time of last status change. */
  68. unsigned long int st_ctimensec; /* Nsecs of last status change. */
  69. #endif
  70. unsigned long int __unused4;
  71. unsigned long int __unused5;
  72. };
  73. #ifdef __USE_LARGEFILE64
  74. struct stat64
  75. {
  76. __dev_t st_dev; /* Device. */
  77. __ino64_t st_ino; /* File serial number. */
  78. __mode_t st_mode; /* File mode. */
  79. __nlink_t st_nlink; /* Link count. */
  80. __uid_t st_uid; /* User ID of the file's owner. */
  81. __gid_t st_gid; /* Group ID of the file's group.*/
  82. __dev_t st_rdev; /* Device number, if device. */
  83. __off64_t st_size; /* Size of file, in bytes. */
  84. __blksize_t st_blksize; /* Optimal block size for I/O. */
  85. unsigned long __pad2;
  86. __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
  87. #if 0 /*def __USE_MISC*/
  88. /* Nanosecond resolution timestamps are stored in a format
  89. equivalent to 'struct timespec'. This is the type used
  90. whenever possible but the Unix namespace rules do not allow the
  91. identifier 'timespec' to appear in the <sys/stat.h> header.
  92. Therefore we have to handle the use of this header in strictly
  93. standard-compliant sources special. */
  94. struct timespec st_atim; /* Time of last access. */
  95. struct timespec st_mtim; /* Time of last modification. */
  96. struct timespec st_ctim; /* Time of last status change. */
  97. #else
  98. __time_t st_atime; /* Time of last access. */
  99. unsigned long int st_atimensec; /* Nscecs of last access. */
  100. __time_t st_mtime; /* Time of last modification. */
  101. unsigned long int st_mtimensec; /* Nsecs of last modification. */
  102. __time_t st_ctime; /* Time of last status change. */
  103. unsigned long int st_ctimensec; /* Nsecs of last status change. */
  104. #endif
  105. unsigned long __unused4;
  106. unsigned long __unused5;
  107. };
  108. #endif
  109. /* Tell code we have these members. */
  110. #define _STATBUF_ST_BLKSIZE
  111. #define _STATBUF_ST_RDEV
  112. /* Nanosecond resolution time values are supported. */
  113. #define _STATBUF_ST_NSEC
  114. /* Encoding of the file mode. */
  115. #define __S_IFMT 0170000 /* These bits determine file type. */
  116. /* File types. */
  117. #define __S_IFDIR 0040000 /* Directory. */
  118. #define __S_IFCHR 0020000 /* Character device. */
  119. #define __S_IFBLK 0060000 /* Block device. */
  120. #define __S_IFREG 0100000 /* Regular file. */
  121. #define __S_IFIFO 0010000 /* FIFO. */
  122. #define __S_IFLNK 0120000 /* Symbolic link. */
  123. #define __S_IFSOCK 0140000 /* Socket. */
  124. /* POSIX.1b objects. Note that these macros always evaluate to zero. But
  125. they do it by enforcing the correct use of the macros. */
  126. #define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode)
  127. #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
  128. #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
  129. /* Protection bits. */
  130. #define __S_ISUID 04000 /* Set user ID on execution. */
  131. #define __S_ISGID 02000 /* Set group ID on execution. */
  132. #define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
  133. #define __S_IREAD 0400 /* Read by owner. */
  134. #define __S_IWRITE 0200 /* Write by owner. */
  135. #define __S_IEXEC 0100 /* Execute by owner. */