stat.h 6.2 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, see
  13. <http://www.gnu.org/licenses/>. */
  14. #ifndef _SYS_STAT_H
  15. # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
  16. #endif
  17. /* Versions of the `struct stat' data structure. */
  18. #define _STAT_VER_KERNEL 0
  19. #define _STAT_VER_LINUX 1
  20. #define _STAT_VER _STAT_VER_LINUX
  21. /* Versions of the `xmknod' interface. */
  22. #define _MKNOD_VER_LINUX 0
  23. struct stat
  24. {
  25. __dev_t st_dev; /* Device. */
  26. #ifndef __USE_FILE_OFFSET64
  27. __ino_t st_ino; /* File serial number. */
  28. #else
  29. __ino64_t st_ino; /* File serial number. */
  30. #endif
  31. __mode_t st_mode; /* File mode. */
  32. __nlink_t st_nlink; /* Link count. */
  33. __uid_t st_uid; /* User ID of the file's owner. */
  34. __gid_t st_gid; /* Group ID of the file's group.*/
  35. __dev_t st_rdev; /* Device number, if device. */
  36. #ifndef __USE_FILE_OFFSET64
  37. __off_t st_size; /* Size of file, in bytes. */
  38. #else
  39. __off64_t st_size; /* Size of file, in bytes. */
  40. #endif
  41. __blksize_t st_blksize; /* Optimal block size for I/O. */
  42. #ifndef __USE_FILE_OFFSET64
  43. __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */
  44. #else
  45. unsigned long __pad2;
  46. __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
  47. #endif
  48. #if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
  49. /* Nanosecond resolution timestamps are stored in a format
  50. equivalent to 'struct timespec'. This is the type used
  51. whenever possible but the Unix namespace rules do not allow the
  52. identifier 'timespec' to appear in the <sys/stat.h> header.
  53. Therefore we have to handle the use of this header in strictly
  54. standard-compliant sources special. */
  55. struct timespec st_atim; /* Time of last access. */
  56. struct timespec st_mtim; /* Time of last modification. */
  57. struct timespec st_ctim; /* Time of last status change. */
  58. # define st_atime st_atim.tv_sec /* Backward compatibility. */
  59. # define st_mtime st_mtim.tv_sec
  60. # define st_ctime st_ctim.tv_sec
  61. #else
  62. __time_t st_atime; /* Time of last access. */
  63. unsigned long int st_atimensec; /* Nscecs of last access. */
  64. __time_t st_mtime; /* Time of last modification. */
  65. unsigned long int st_mtimensec; /* Nsecs of last modification. */
  66. __time_t st_ctime; /* Time of last status change. */
  67. unsigned long int st_ctimensec; /* Nsecs of last status change. */
  68. #endif
  69. unsigned long int __uclibc_unused4;
  70. unsigned long int __uclibc_unused5;
  71. };
  72. #ifdef __USE_LARGEFILE64
  73. struct stat64
  74. {
  75. __dev_t st_dev; /* Device. */
  76. __ino64_t st_ino; /* File serial number. */
  77. __mode_t st_mode; /* File mode. */
  78. __nlink_t st_nlink; /* Link count. */
  79. __uid_t st_uid; /* User ID of the file's owner. */
  80. __gid_t st_gid; /* Group ID of the file's group.*/
  81. __dev_t st_rdev; /* Device number, if device. */
  82. __off64_t st_size; /* Size of file, in bytes. */
  83. __blksize_t st_blksize; /* Optimal block size for I/O. */
  84. unsigned long __pad2;
  85. __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
  86. #if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
  87. /* Nanosecond resolution timestamps are stored in a format
  88. equivalent to 'struct timespec'. This is the type used
  89. whenever possible but the Unix namespace rules do not allow the
  90. identifier 'timespec' to appear in the <sys/stat.h> header.
  91. Therefore we have to handle the use of this header in strictly
  92. standard-compliant sources special. */
  93. struct timespec st_atim; /* Time of last access. */
  94. struct timespec st_mtim; /* Time of last modification. */
  95. struct timespec st_ctim; /* Time of last status change. */
  96. #else
  97. __time_t st_atime; /* Time of last access. */
  98. unsigned long int st_atimensec; /* Nscecs of last access. */
  99. __time_t st_mtime; /* Time of last modification. */
  100. unsigned long int st_mtimensec; /* Nsecs of last modification. */
  101. __time_t st_ctime; /* Time of last status change. */
  102. unsigned long int st_ctimensec; /* Nsecs of last status change. */
  103. #endif
  104. unsigned long __uclibc_unused4;
  105. unsigned long __uclibc_unused5;
  106. };
  107. #endif
  108. /* Tell code we have these members. */
  109. #define _STATBUF_ST_BLKSIZE
  110. #define _STATBUF_ST_RDEV
  111. /* Nanosecond resolution time values are supported. */
  112. #define _STATBUF_ST_NSEC
  113. /* Encoding of the file mode. */
  114. #define __S_IFMT 0170000 /* These bits determine file type. */
  115. /* File types. */
  116. #define __S_IFDIR 0040000 /* Directory. */
  117. #define __S_IFCHR 0020000 /* Character device. */
  118. #define __S_IFBLK 0060000 /* Block device. */
  119. #define __S_IFREG 0100000 /* Regular file. */
  120. #define __S_IFIFO 0010000 /* FIFO. */
  121. #define __S_IFLNK 0120000 /* Symbolic link. */
  122. #define __S_IFSOCK 0140000 /* Socket. */
  123. /* POSIX.1b objects. Note that these macros always evaluate to zero. But
  124. they do it by enforcing the correct use of the macros. */
  125. #define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode)
  126. #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
  127. #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
  128. /* Protection bits. */
  129. #define __S_ISUID 04000 /* Set user ID on execution. */
  130. #define __S_ISGID 02000 /* Set group ID on execution. */
  131. #define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
  132. #define __S_IREAD 0400 /* Read by owner. */
  133. #define __S_IWRITE 0200 /* Write by owner. */
  134. #define __S_IEXEC 0100 /* Execute by owner. */
  135. #ifdef __USE_ATFILE
  136. # define UTIME_NOW ((1l << 30) - 1l)
  137. # define UTIME_OMIT ((1l << 30) - 2l)
  138. #endif