stat.h 5.6 KB

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  1. /*
  2. * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
  3. *
  4. * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  5. */
  6. #ifndef _SYS_STAT_H
  7. # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
  8. #endif
  9. #include <bits/align64bit.h>
  10. #include <bits/wordsize.h>
  11. #include <endian.h>
  12. /* Versions of the `struct stat' data structure. */
  13. #define _STAT_VER_LINUX_OLD 1
  14. #define _STAT_VER_KERNEL 1
  15. #define _STAT_VER_SVR4 2
  16. #define _STAT_VER_LINUX 3
  17. #define _STAT_VER _STAT_VER_LINUX /* The one defined below. */
  18. /* Versions of the `xmknod' interface. */
  19. #define _MKNOD_VER_LINUX 1
  20. #define _MKNOD_VER_SVR4 2
  21. #define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */
  22. /*
  23. * For 32-bit architectures, this struct is similar to the stat64 but it
  24. * uses 32-bit members along with 32-bit padding. For 64-bit architectures
  25. * this struct is exactly the same with the stat64 one
  26. */
  27. struct stat
  28. {
  29. unsigned long long st_dev; /* Device. */
  30. unsigned long long st_ino; /* 32bit file serial number. */
  31. unsigned int st_mode; /* File mode. */
  32. unsigned int st_nlink; /* Link count. */
  33. unsigned int st_uid; /* User ID of the file's owner. */
  34. unsigned int st_gid; /* Group ID of the file's group.*/
  35. unsigned long long st_rdev; /* Device number, if device. */
  36. unsigned long long _pad1;
  37. #if __WORDSIZE == 64
  38. __off_t st_size; /* SIze of file, in bytes. */
  39. #else
  40. long long st_size; /* SIze of file, in bytes. */
  41. #endif
  42. int st_blksize; /* Optimal block size for I/O. */
  43. int __pad2;
  44. long long st_blocks; /* Number 512-byte blocks allocated */
  45. #ifdef __USE_MISC
  46. /* Nanosecond resolution timestamps are stored in a format
  47. equivalent to 'struct timespec'. This is the type used
  48. whenever possible but the Unix namespace rules do not allow the
  49. identifier 'timespec' to appear in the <sys/stat.h> header.
  50. Therefore we have to handle the use of this header in strictly
  51. standard-compliant sources special. */
  52. struct timespec st_atim; /* Time of last access. */
  53. struct timespec st_mtim; /* Time of last modification. */
  54. struct timespec st_ctim; /* Time of last status change. */
  55. # define st_atime st_atim.tv_sec /* Backward compatibility. */
  56. # define st_mtime st_mtim.tv_sec
  57. # define st_ctime st_ctim.tv_sec
  58. #else
  59. int st_atime; /* Time of last access. */
  60. unsigned int st_atime_nsec;
  61. int st_mtime; /* Time of last modification. */
  62. unsigned int st_mtime_nsec;
  63. int st_ctime; /* Time of last status change. */
  64. unsigned int st_ctime_nsec;
  65. #endif
  66. unsigned int __unused4;
  67. unsigned int __unused5;
  68. } __ARCH_64BIT_ALIGNMENT__;
  69. #ifdef __USE_LARGEFILE64
  70. struct stat64
  71. {
  72. unsigned long long st_dev; /* Device. */
  73. unsigned long long st_ino; /* 32bit file serial number. */
  74. unsigned int st_mode; /* File mode. */
  75. unsigned int st_nlink; /* Link count. */
  76. unsigned int st_uid; /* User ID of the file's owner. */
  77. unsigned int st_gid; /* Group ID of the file's group.*/
  78. unsigned long long st_rdev; /* Device number, if device. */
  79. unsigned long long __pad3;
  80. long long st_size; /* Size of file, in bytes. */
  81. int st_blksize; /* Optimal block size for I/O. */
  82. int __pad4;
  83. long long st_blocks; /* Number 512-byte blocks allocated */
  84. # ifdef __USE_MISC
  85. /* Nanosecond resolution timestamps are stored in a format
  86. equivalent to 'struct timespec'. This is the type used
  87. whenever possible but the Unix namespace rules do not allow the
  88. identifier 'timespec' to appear in the <sys/stat.h> header.
  89. Therefore we have to handle the use of this header in strictly
  90. standard-compliant sources special. */
  91. struct timespec st_atim; /* Time of last access. */
  92. struct timespec st_mtim; /* Time of last modification. */
  93. struct timespec st_ctim; /* Time of last status change. */
  94. # else
  95. int st_atime; /* Time of last access. */
  96. unsigned int st_atime_nsec;
  97. int st_mtime; /* Time of last modification. */
  98. unsigned int st_mtime_nsec;
  99. int st_ctime; /* Time of last status change. */
  100. unsigned int st_ctime_nsec;
  101. # endif
  102. unsigned int __unused4;
  103. unsigned int __unused5;
  104. };
  105. #endif
  106. /* Tell code we have these members. */
  107. #define _STATBUF_ST_BLKSIZE
  108. #define _STATBUF_ST_RDEV
  109. /* Nanosecond resolution time values are supported. */
  110. #define _STATBUF_ST_NSEC
  111. /* Encoding of the file mode. */
  112. #define __S_IFMT 0170000 /* These bits determine file type. */
  113. /* File types. */
  114. #define __S_IFDIR 0040000 /* Directory. */
  115. #define __S_IFCHR 0020000 /* Character device. */
  116. #define __S_IFBLK 0060000 /* Block device. */
  117. #define __S_IFREG 0100000 /* Regular file. */
  118. #define __S_IFIFO 0010000 /* FIFO. */
  119. #define __S_IFLNK 0120000 /* Symbolic link. */
  120. #define __S_IFSOCK 0140000 /* Socket. */
  121. /* POSIX.1b objects. Note that these macros always evaluate to zero. But
  122. they do it by enforcing the correct use of the macros. */
  123. #define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode)
  124. #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
  125. #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
  126. /* Protection bits. */
  127. #define __S_ISUID 04000 /* Set user ID on execution. */
  128. #define __S_ISGID 02000 /* Set group ID on execution. */
  129. #define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
  130. #define __S_IREAD 0400 /* Read by owner. */
  131. #define __S_IWRITE 0200 /* Write by owner. */
  132. #define __S_IEXEC 0100 /* Execute by owner. */
  133. #ifdef __USE_ATFILE
  134. # define UTIME_NOW ((1l << 30) - 1l)
  135. # define UTIME_OMIT ((1l << 30) - 2l)
  136. #endif