diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/d_type-check | 45 |
1 files changed, 39 insertions, 6 deletions
diff --git a/tests/d_type-check b/tests/d_type-check index ff1eb60b9..1a2f76f51 100644 --- a/tests/d_type-check +++ b/tests/d_type-check @@ -1,13 +1,17 @@ #!/usr/bin/python -# Exit 0 if "." has useful d_type information, else 1. +# Exit 0 if "." and "./tempfile" have useful d_type information, else 1. # Intended to exit 0 only on Linux/GNU systems. +import os import sys +import tempfile fail = 1 +fname = None + try: import ctypes.util - (DT_UNKNOWN, DT_DIR,) = (0, 4,) + (DT_UNKNOWN, DT_DIR, DT_REG) = (0, 4, 8) class dirent(ctypes.Structure): _fields_ = [ @@ -17,19 +21,48 @@ try: ("d_type", ctypes.c_ubyte), ("d_name", ctypes.c_char*256)] + # Pass NULL to dlopen, assuming the python + # interpreter is linked with the C runtime + libc = ctypes.CDLL(None) + + # Setup correct types for all args and returns + # even if only passing, to avoid truncation etc. + dirp = ctypes.c_void_p direntp = ctypes.POINTER(dirent) - libc = ctypes.CDLL(ctypes.util.find_library('c'), use_errno=True) + libc.readdir.argtypes = [dirp] libc.readdir.restype = direntp + libc.opendir.restype = dirp + + # Ensure a file is present + f, fname = tempfile.mkstemp(dir='.') + fname = os.path.basename(fname) + dirp = libc.opendir(".") if dirp: - ep = libc.readdir(dirp) - if ep: + while True: + ep = libc.readdir(dirp) + if not ep: break + d_type = ep.contents.d_type name = ep.contents.d_name - if (name == "." or name == "..") and ep.contents.d_type == DT_DIR: + if name == "." or name == "..": + if d_type != DT_DIR: break + # Check files too since on XFS, only dirs have DT_DIR + # while everything else has DT_UNKNOWN + elif name == fname: + if d_type == DT_REG: + fail = 0 + break + elif d_type != DT_DIR and d_type != DT_UNKNOWN: fail = 0 + break +except: + pass +try: + if fname: + os.unlink(fname); except: pass |