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87 lines
1.6 KiB
Python
87 lines
1.6 KiB
Python
"""Constants/functions for interpreting results of os.stat() and os.lstat().
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Suggested usage: from stat import *
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"""
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# XXX Strictly spoken, this module may have to be adapted for each POSIX
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# implementation; in practice, however, the numeric constants used by
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# stat() are almost universal (even for stat() emulations on non-UNIX
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# systems like MS-DOS).
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# Indices for stat struct members in tuple returned by os.stat()
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ST_MODE = 0
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ST_INO = 1
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ST_DEV = 2
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ST_NLINK = 3
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ST_UID = 4
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ST_GID = 5
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ST_SIZE = 6
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ST_ATIME = 7
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ST_MTIME = 8
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ST_CTIME = 9
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# Extract bits from the mode
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def S_IMODE(mode):
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return mode & 07777
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def S_IFMT(mode):
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return mode & 0170000
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# Constants used as S_IFMT() for various file types
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# (not all are implemented on all systems)
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S_IFDIR = 0040000
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S_IFCHR = 0020000
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S_IFBLK = 0060000
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S_IFREG = 0100000
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S_IFIFO = 0010000
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S_IFLNK = 0120000
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S_IFSOCK = 0140000
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# Functions to test for each file type
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def S_ISDIR(mode):
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return S_IFMT(mode) == S_IFDIR
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def S_ISCHR(mode):
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return S_IFMT(mode) == S_IFCHR
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def S_ISBLK(mode):
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return S_IFMT(mode) == S_IFBLK
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def S_ISREG(mode):
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return S_IFMT(mode) == S_IFREG
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def S_ISFIFO(mode):
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return S_IFMT(mode) == S_IFIFO
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def S_ISLNK(mode):
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return S_IFMT(mode) == S_IFLNK
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def S_ISSOCK(mode):
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return S_IFMT(mode) == S_IFSOCK
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# Names for permission bits
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S_ISUID = 04000
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S_ISGID = 02000
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S_ENFMT = S_ISGID
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S_ISVTX = 01000
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S_IREAD = 00400
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S_IWRITE = 00200
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S_IEXEC = 00100
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S_IRWXU = 00700
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S_IRUSR = 00400
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S_IWUSR = 00200
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S_IXUSR = 00100
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S_IRWXG = 00070
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S_IRGRP = 00040
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S_IWGRP = 00020
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S_IXGRP = 00010
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S_IRWXO = 00007
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S_IROTH = 00004
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S_IWOTH = 00002
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S_IXOTH = 00001
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