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From eafaa2e88f7af16756142a31ab63d032b31395e3 Mon Sep 17 00:00:00 2001
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From: Pádraig Brady <P@draigBrady.com>
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Date: Fri, 06 Nov 2015 16:31:22 +0000
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Subject: tests: fix dirent d_type support verification
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* tests/d_type-check: Check also the d_type of files,
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which excludes XFS appropriately. Specify all argument
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and return types to avoid truncated pointers being passed,
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which skipped the test due to crashes on x86_64 at least.
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Simplify the C library lookup by reusing the interpreter's.
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chroot issue reported at https://bugzilla.redhat.com/1263341
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---
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diff --git a/tests/d_type-check b/tests/d_type-check
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index ff1eb60..1a2f76f 100644
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--- a/tests/d_type-check
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+++ b/tests/d_type-check
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@@ -1,13 +1,17 @@
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#!/usr/bin/python
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-# Exit 0 if "." has useful d_type information, else 1.
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+# Exit 0 if "." and "./tempfile" have useful d_type information, else 1.
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# Intended to exit 0 only on Linux/GNU systems.
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+import os
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import sys
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+import tempfile
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fail = 1
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+fname = None
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+
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try:
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import ctypes
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- (DT_UNKNOWN, DT_DIR,) = (0, 4,)
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+ (DT_UNKNOWN, DT_DIR, DT_REG) = (0, 4, 8)
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class dirent(ctypes.Structure):
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_fields_ = [
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@@ -17,20 +21,48 @@ try:
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("d_type", ctypes.c_ubyte),
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("d_name", ctypes.c_char*256)]
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+ # Pass NULL to dlopen, assuming the python
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+ # interpreter is linked with the C runtime
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+ libc = ctypes.CDLL(None)
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+
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+ # Setup correct types for all args and returns
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+ # even if only passing, to avoid truncation etc.
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+ dirp = ctypes.c_void_p
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direntp = ctypes.POINTER(dirent)
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- # FIXME: find a way to avoid hard-coding libc's so-name.
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- libc = ctypes.cdll.LoadLibrary("libc.so.6")
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+ libc.readdir.argtypes = [dirp]
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libc.readdir.restype = direntp
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+ libc.opendir.restype = dirp
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+
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+ # Ensure a file is present
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+ f, fname = tempfile.mkstemp(dir='.')
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+ fname = os.path.basename(fname)
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+
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dirp = libc.opendir(".")
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if dirp:
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- ep = libc.readdir(dirp)
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- if ep:
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+ while True:
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+ ep = libc.readdir(dirp)
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+ if not ep: break
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+ d_type = ep.contents.d_type
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name = ep.contents.d_name
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- if (name == "." or name == "..") and ep.contents.d_type == DT_DIR:
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+ if name == "." or name == "..":
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+ if d_type != DT_DIR: break
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+ # Check files too since on XFS, only dirs have DT_DIR
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+ # while everything else has DT_UNKNOWN
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+ elif name == fname:
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+ if d_type == DT_REG:
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+ fail = 0
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+ break
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+ elif d_type != DT_DIR and d_type != DT_UNKNOWN:
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fail = 0
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+ break
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+except:
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+ pass
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+try:
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+ if fname:
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+ os.unlink(fname);
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except:
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pass
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--
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cgit v0.9.0.2
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