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| 1 | """Constants/functions for interpreting results of os.stat() and os.lstat().
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| 2 |
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| 3 | Suggested usage: from stat import *
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| 4 | """
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| 5 |
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| 6 | # XXX Strictly spoken, this module may have to be adapted for each POSIX
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| 7 | # implementation; in practice, however, the numeric constants used by
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| 8 | # stat() are almost universal (even for stat() emulations on non-UNIX
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| 9 | # systems like MS-DOS).
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| 10 |
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| 11 | # Indices for stat struct members in tuple returned by os.stat()
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| 12 |
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| 13 | ST_MODE = 0
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| 14 | ST_INO = 1
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| 15 | ST_DEV = 2
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| 16 | ST_NLINK = 3
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| 17 | ST_UID = 4
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| 18 | ST_GID = 5
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| 19 | ST_SIZE = 6
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| 20 | ST_ATIME = 7
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| 21 | ST_MTIME = 8
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| 22 | ST_CTIME = 9
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| 23 |
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| 24 | # Extract bits from the mode
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| 25 |
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| 26 | def S_IMODE(mode):
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| 27 | return mode & 07777
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| 28 |
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| 29 | def S_IFMT(mode):
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| 30 | return mode & 0170000
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| 31 |
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| 32 | # Constants used as S_IFMT() for various file types
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| 33 | # (not all are implemented on all systems)
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| 34 |
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| 35 | S_IFDIR = 0040000
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| 36 | S_IFCHR = 0020000
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| 37 | S_IFBLK = 0060000
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| 38 | S_IFREG = 0100000
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| 39 | S_IFIFO = 0010000
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| 40 | S_IFLNK = 0120000
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| 41 | S_IFSOCK = 0140000
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| 42 |
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| 43 | # Functions to test for each file type
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| 44 |
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| 45 | def S_ISDIR(mode):
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| 46 | return S_IFMT(mode) == S_IFDIR
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| 47 |
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| 48 | def S_ISCHR(mode):
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| 49 | return S_IFMT(mode) == S_IFCHR
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| 50 |
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| 51 | def S_ISBLK(mode):
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| 52 | return S_IFMT(mode) == S_IFBLK
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| 53 |
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| 54 | def S_ISREG(mode):
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| 55 | return S_IFMT(mode) == S_IFREG
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| 56 |
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| 57 | def S_ISFIFO(mode):
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| 58 | return S_IFMT(mode) == S_IFIFO
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| 59 |
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| 60 | def S_ISLNK(mode):
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| 61 | return S_IFMT(mode) == S_IFLNK
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| 62 |
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| 63 | def S_ISSOCK(mode):
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| 64 | return S_IFMT(mode) == S_IFSOCK
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| 65 |
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| 66 | # Names for permission bits
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| 67 |
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| 68 | S_ISUID = 04000
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| 69 | S_ISGID = 02000
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| 70 | S_ENFMT = S_ISGID
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| 71 | S_ISVTX = 01000
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| 72 | S_IREAD = 00400
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| 73 | S_IWRITE = 00200
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| 74 | S_IEXEC = 00100
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| 75 | S_IRWXU = 00700
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| 76 | S_IRUSR = 00400
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| 77 | S_IWUSR = 00200
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| 78 | S_IXUSR = 00100
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| 79 | S_IRWXG = 00070
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| 80 | S_IRGRP = 00040
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| 81 | S_IWGRP = 00020
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| 82 | S_IXGRP = 00010
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| 83 | S_IRWXO = 00007
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| 84 | S_IROTH = 00004
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| 85 | S_IWOTH = 00002
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| 86 | S_IXOTH = 00001
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