Symlink flag for chmod

[Johannes Segitz]

Hello,

chown has a flag that prevents symlink following. chown/chmod is sometimes
used in %post/%pre sections of rpm packages to fix up permissions. When
this is done in user owned directories (somewhere along the path) this is a
security problem. chown allows users to handle this via the -h flag which
instructs it not to follow a symlink.

The attached patch adds this flag for chmod. I read
https://git.savannah.gnu.org/cgit/coreutils.git/plain/README-hacking
but chmod doesn't have an email listed, so I set the patch here.

Please CC me in replies, I'm not subscribed to the list.

Thanks,
Johannes
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chmod_nofollow_symlinks_option.patch
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