/Lib/stat.py

http://unladen-swallow.googlecode.com/ · Python · 94 lines · 64 code · 19 blank · 11 comment · 0 complexity · 4378bb4ab8ec1d002107342e01c7d1fb MD5 · raw file 

    

  1. """Constants/functions for interpreting results of os.stat() and os.lstat().
    2. 

    3. 

  3. Suggested usage: from stat import *
    4. 

  4. """
    5. 

    6. 

  6. # Indices for stat struct members in the tuple returned by os.stat()
    7. 

  7. 

  8. ST_MODE  = 0
    9. 

  9. ST_INO   = 1
    10. 

  10. ST_DEV   = 2
    11. 

  11. ST_NLINK = 3
    12. 

  12. ST_UID   = 4
    13. 

  13. ST_GID   = 5
    14. 

  14. ST_SIZE  = 6
    15. 

  15. ST_ATIME = 7
    16. 

  16. ST_MTIME = 8
    17. 

  17. ST_CTIME = 9
    18. 

  18. 

  19. # Extract bits from the mode
    20. 

  20. 

  21. def S_IMODE(mode):
    22. 

  22.     return mode & 07777
    23. 

  23. 

  24. def S_IFMT(mode):
    25. 

  25.     return mode & 0170000
    26. 

  26. 

  27. # Constants used as S_IFMT() for various file types
    28. 

  28. # (not all are implemented on all systems)
    29. 

  29. 

  30. S_IFDIR  = 0040000
    31. 

  31. S_IFCHR  = 0020000
    32. 

  32. S_IFBLK  = 0060000
    33. 

  33. S_IFREG  = 0100000
    34. 

  34. S_IFIFO  = 0010000
    35. 

  35. S_IFLNK  = 0120000
    36. 

  36. S_IFSOCK = 0140000
    37. 

  37. 

  38. # Functions to test for each file type
    39. 

  39. 

  40. def S_ISDIR(mode):
    41. 

  41.     return S_IFMT(mode) == S_IFDIR
    42. 

  42. 

  43. def S_ISCHR(mode):
    44. 

  44.     return S_IFMT(mode) == S_IFCHR
    45. 

  45. 

  46. def S_ISBLK(mode):
    47. 

  47.     return S_IFMT(mode) == S_IFBLK
    48. 

  48. 

  49. def S_ISREG(mode):
    50. 

  50.     return S_IFMT(mode) == S_IFREG
    51. 

  51. 

  52. def S_ISFIFO(mode):
    53. 

  53.     return S_IFMT(mode) == S_IFIFO
    54. 

  54. 

  55. def S_ISLNK(mode):
    56. 

  56.     return S_IFMT(mode) == S_IFLNK
    57. 

  57. 

  58. def S_ISSOCK(mode):
    59. 

  59.     return S_IFMT(mode) == S_IFSOCK
    60. 

  60. 

  61. # Names for permission bits
    62. 

  62. 

  63. S_ISUID = 04000
    64. 

  64. S_ISGID = 02000
    65. 

  65. S_ENFMT = S_ISGID
    66. 

  66. S_ISVTX = 01000
    67. 

  67. S_IREAD = 00400
    68. 

  68. S_IWRITE = 00200
    69. 

  69. S_IEXEC = 00100
    70. 

  70. S_IRWXU = 00700
    71. 

  71. S_IRUSR = 00400
    72. 

  72. S_IWUSR = 00200
    73. 

  73. S_IXUSR = 00100
    74. 

  74. S_IRWXG = 00070
    75. 

  75. S_IRGRP = 00040
    76. 

  76. S_IWGRP = 00020
    77. 

  77. S_IXGRP = 00010
    78. 

  78. S_IRWXO = 00007
    79. 

  79. S_IROTH = 00004
    80. 

  80. S_IWOTH = 00002
    81. 

  81. S_IXOTH = 00001
    82. 

  82. 

  83. # Names for file flags
    84. 

  84. 

  85. UF_NODUMP    = 0x00000001
    86. 

  86. UF_IMMUTABLE = 0x00000002
    87. 

  87. UF_APPEND    = 0x00000004
    88. 

  88. UF_OPAQUE    = 0x00000008
    89. 

  89. UF_NOUNLINK  = 0x00000010
    90. 

  90. SF_ARCHIVED  = 0x00010000
    91. 

  91. SF_IMMUTABLE = 0x00020000
    92. 

  92. SF_APPEND    = 0x00040000
    93. 

  93. SF_NOUNLINK  = 0x00100000
    94. 

  94. SF_SNAPSHOT  = 0x00200000
    95.