stat.h 4.4 KB

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  1. /* Copyright (C) 1999, 2000, 2001, 2002 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., 59 Temple Place, Suite 330, Boston, MA
  14. 02111-1307 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. __ino_t st_ino; /* File serial number. */
  28. __nlink_t st_nlink; /* Link count. */
  29. __mode_t st_mode; /* File mode. */
  30. __uid_t st_uid; /* User ID of the file's owner. */
  31. __gid_t st_gid; /* Group ID of the file's group.*/
  32. int pad0;
  33. __dev_t st_rdev; /* Device number, if device. */
  34. __off_t st_size; /* Size of file, in bytes. */
  35. __time_t st_atime; /* Time of last access. */
  36. unsigned long int st_atimensec; /* Nscecs of last access. */
  37. __time_t st_mtime; /* Time of last modification. */
  38. unsigned long int st_mtimensec; /* Nsecs of last modification. */
  39. __time_t st_ctime; /* Time of last status change. */
  40. unsigned long int st_ctimensec; /* Nsecs of last status change. */
  41. __blksize_t st_blksize; /* Optimal block size for I/O. */
  42. __blkcnt_t st_blocks; /* Nr. 512-byte blocks allocated. */
  43. long int __unused[3];
  44. };
  45. #ifdef __USE_LARGEFILE64
  46. /* Note stat64 is the same shape as stat. */
  47. struct stat64
  48. {
  49. __dev_t st_dev; /* Device. */
  50. __ino64_t st_ino; /* File serial number. */
  51. __nlink_t st_nlink; /* Link count. */
  52. __mode_t st_mode; /* File mode. */
  53. __uid_t st_uid; /* User ID of the file's owner. */
  54. __gid_t st_gid; /* Group ID of the file's group.*/
  55. int pad0;
  56. __dev_t st_rdev; /* Device number, if device. */
  57. __off_t st_size; /* Size of file, in bytes. */
  58. __time_t st_atime; /* Time of last access. */
  59. unsigned long int st_atimensec; /* Nscecs of last access. */
  60. __time_t st_mtime; /* Time of last modification. */
  61. unsigned long int st_mtimensec; /* Nsecs of last modification. */
  62. __time_t st_ctime; /* Time of last status change. */
  63. unsigned long int st_ctimensec; /* Nsecs of last status change. */
  64. __blksize_t st_blksize; /* Optimal block size for I/O. */
  65. __blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */
  66. long int __unused[3];
  67. };
  68. #endif
  69. /* Tell code we have these members. */
  70. #define _STATBUF_ST_BLKSIZE
  71. #define _STATBUF_ST_RDEV
  72. /* Nanosecond resolution time values are supported. */
  73. #define _STATBUF_ST_NSEC
  74. /* Encoding of the file mode. */
  75. #define __S_IFMT 0170000 /* These bits determine file type. */
  76. /* File types. */
  77. #define __S_IFDIR 0040000 /* Directory. */
  78. #define __S_IFCHR 0020000 /* Character device. */
  79. #define __S_IFBLK 0060000 /* Block device. */
  80. #define __S_IFREG 0100000 /* Regular file. */
  81. #define __S_IFIFO 0010000 /* FIFO. */
  82. #define __S_IFLNK 0120000 /* Symbolic link. */
  83. #define __S_IFSOCK 0140000 /* Socket. */
  84. /* POSIX.1b objects. Note that these macros always evaluate to zero. But
  85. they do it by enforcing the correct use of the macros. */
  86. #define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode)
  87. #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
  88. #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
  89. /* Protection bits. */
  90. #define __S_ISUID 04000 /* Set user ID on execution. */
  91. #define __S_ISGID 02000 /* Set group ID on execution. */
  92. #define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
  93. #define __S_IREAD 0400 /* Read by owner. */
  94. #define __S_IWRITE 0200 /* Write by owner. */
  95. #define __S_IEXEC 0100 /* Execute by owner. */