[wplug] chmod and windows partition

[John Harrold]

Sometime in September Rob Jefferson assaulted the keyboard and produced:

| On Mon, 15 Sep 2003, John Harrold wrote:
| 
| > the uid is the user id of root, and the umask contains the permissions of
| > the mount point in octal form (see the manpage for mount). i'm not really
| > sure about the 077 thing. i would think that would turn off read, write and
| > execute permissions for the user but turn them on for the group and the
| > world. i think what you want here is 770.
| 
| It's a mask, not an explicit permission.  In general, the umask is used to
| set the initial permissions of a file, by AND-ing the permissions with the
| complement of the umask (think subtraction). So, the non-negative bits
| are ignored by any file creation/access process.  In the case of 077:
| 
| The owner can do everything (the 0 masks no permissions);
| The group and the world can do nothing (the 7 masks all permissions);
| 
| If the umask were, say, 022, and we created a file, we'd get:
| 
| The owner can do everything (again, the zero masks nothing);
| The group and world can read and execute (the 2 masks writing, leaving the
| 4 for the reading and 1 for execution).
| 
| If you think of it like 777-077=700 or 777-022=755 respectively, it makes
| more sense.
| 
| So in this case, 077 would be right if you didn't want anyone other than
| the user accessing the mount.

thanks for correcting me that makes more sense.

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