[Bug libc/14578] fchmodat(..., AT_SYMLINK_NOFOLLOW) returns ENOTSUP on non-symlinks

[joseph at codesourcery dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14578

--- Comment #4 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2012-09-13 23:06:48 UTC ---
I don't know if O_PATH will do the trick.  If it does, what do kernels 
before 2.6.39 (when O_PATH was introduced) do when O_PATH is used?  (If 
they just ignore it and open the file as if O_PATH were not present, then 
we'd need to make sure not to try using O_PATH on older kernels, to avoid 
any side-effects from opening device files, for example.)

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