Issue 1713: posixpath.ismount() claims symlink to a mountpoint is a mountpoint. (original) (raw)

Issue1713

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This issue has been migrated to GitHub: https://github.com/python/cpython/issues/46054

classification

process

Created on 2007-12-31 02:24 by drougge, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (4)
msg59056 - (view)	Author: Carl Drougge (drougge) *	Date: 2007-12-31 02:35
Sorry, this happened to me in /tmp, where it's actually true, except I don't expect symlinks to be considered mountpoints, so I still consider it a bug. Should have tested more though.
msg59059 - (view)	Author: Christian Heimes (christian.heimes) *	Date: 2007-12-31 13:26
A fix for the problem is easy. One has to replace os.stat() with os.lstat(): def ismount(path): """Test whether a path is a mount point""" try: s1 = os.stat(path) s2 = os.stat(join(path, '..')) except os.error: return False # It doesn't exist -- so not a mount point :-) dev1 = s1.st_dev dev2 = s2.st_dev if dev1 != dev2: return True # path/.. on a different device as path ino1 = s1.st_ino ino2 = s2.st_ino if ino1 == ino2: return True # path/.. is the same i-node as path return False
msg59073 - (view)	Author: Guido van Rossum (gvanrossum) *	Date: 2008-01-01 19:05
Go ahead then!
msg59221 - (view)	Author: Christian Heimes (christian.heimes) *	Date: 2008-01-04 13:23
Fixed in r59709 (trunk) and r59710 (2.5)