projects / OpenSPARC-T2-DV / blame
| Commit | Line | Data |
|---|---|---|
| 86530b38 AT |
1 | """Constants/functions for interpreting results of os.stat() and os.lstat(). |
| 2 | ||
| 3 | Suggested usage: from stat import * | |
| 4 | """ | |
| 5 | ||
| 6 | # XXX Strictly spoken, this module may have to be adapted for each POSIX | |
| 7 | # implementation; in practice, however, the numeric constants used by | |
| 8 | # stat() are almost universal (even for stat() emulations on non-UNIX | |
| 9 | # systems like MS-DOS). | |
| 10 | ||
| 11 | # Indices for stat struct members in tuple returned by os.stat() | |
| 12 | ||
| 13 | ST_MODE = 0 | |
| 14 | ST_INO = 1 | |
| 15 | ST_DEV = 2 | |
| 16 | ST_NLINK = 3 | |
| 17 | ST_UID = 4 | |
| 18 | ST_GID = 5 | |
| 19 | ST_SIZE = 6 | |
| 20 | ST_ATIME = 7 | |
| 21 | ST_MTIME = 8 | |
| 22 | ST_CTIME = 9 | |
| 23 | ||
| 24 | # Extract bits from the mode | |
| 25 | ||
| 26 | def S_IMODE(mode): | |
| 27 | return mode & 07777 | |
| 28 | ||
| 29 | def S_IFMT(mode): | |
| 30 | return mode & 0170000 | |
| 31 | ||
| 32 | # Constants used as S_IFMT() for various file types | |
| 33 | # (not all are implemented on all systems) | |
| 34 | ||
| 35 | S_IFDIR = 0040000 | |
| 36 | S_IFCHR = 0020000 | |
| 37 | S_IFBLK = 0060000 | |
| 38 | S_IFREG = 0100000 | |
| 39 | S_IFIFO = 0010000 | |
| 40 | S_IFLNK = 0120000 | |
| 41 | S_IFSOCK = 0140000 | |
| 42 | ||
| 43 | # Functions to test for each file type | |
| 44 | ||
| 45 | def S_ISDIR(mode): | |
| 46 | return S_IFMT(mode) == S_IFDIR | |
| 47 | ||
| 48 | def S_ISCHR(mode): | |
| 49 | return S_IFMT(mode) == S_IFCHR | |
| 50 | ||
| 51 | def S_ISBLK(mode): | |
| 52 | return S_IFMT(mode) == S_IFBLK | |
| 53 | ||
| 54 | def S_ISREG(mode): | |
| 55 | return S_IFMT(mode) == S_IFREG | |
| 56 | ||
| 57 | def S_ISFIFO(mode): | |
| 58 | return S_IFMT(mode) == S_IFIFO | |
| 59 | ||
| 60 | def S_ISLNK(mode): | |
| 61 | return S_IFMT(mode) == S_IFLNK | |
| 62 | ||
| 63 | def S_ISSOCK(mode): | |
| 64 | return S_IFMT(mode) == S_IFSOCK | |
| 65 | ||
| 66 | # Names for permission bits | |
| 67 | ||
| 68 | S_ISUID = 04000 | |
| 69 | S_ISGID = 02000 | |
| 70 | S_ENFMT = S_ISGID | |
| 71 | S_ISVTX = 01000 | |
| 72 | S_IREAD = 00400 | |
| 73 | S_IWRITE = 00200 | |
| 74 | S_IEXEC = 00100 | |
| 75 | S_IRWXU = 00700 | |
| 76 | S_IRUSR = 00400 | |
| 77 | S_IWUSR = 00200 | |
| 78 | S_IXUSR = 00100 | |
| 79 | S_IRWXG = 00070 | |
| 80 | S_IRGRP = 00040 | |
| 81 | S_IWGRP = 00020 | |
| 82 | S_IXGRP = 00010 | |
| 83 | S_IRWXO = 00007 | |
| 84 | S_IROTH = 00004 | |
| 85 | S_IWOTH = 00002 | |
| 86 | S_IXOTH = 00001 |