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