[install] Strange behavior.

[Hugues Moretto-Viry]

Hi,

My question concerns install binary from GNU coreutils (8.21). Let's assume "/usr/local/bin" exists and belongs to root (user/group).
I run the following command (in non-root):

install -d -o 0 -g 0 -m 755 /usr/local/bin

When I launch this command with my regular user, I have no errors messages.
In fact, strace shows the return code, which is 0: http://sprunge.us/GLLJ

Since, I'm not root, it shouldn't exit with success.
I noticed this behavior when I was trying to fix a Makefile, provided by one of my friend.
Actually, I don't know if it's a bug. I concluded it exits with 0 because folder already exists with correct ownerships, so the command isn't evaluated.
But, I'm not sure about it.
Am I right?

Using

install -d -o 10 -g 10 -m 755 /usr/local/bin

prints an error as it should.

I'm a not a coder so it's almost impossible for me, to find an answer, that's why I sent this email.

Regards

--
H.Mo.