[GRASS-dev] mapset permissions: only owner should have write permissions

[Hamish]

Hi,

Markus M:

> From within GRASS, only the owner of a mapset is allowed to start a
> GRASS session in this mapset, i.e. only the owner of a mapset has
> write permissions to this mapset. But a new mapset being a folder in
> the file system is created with mode 0777, thus granting write
> permissions to all. I suggest to change mode from 0777 to 0755 in
> G_mkdir() and add mode = 0755 in gis_set.py. Any objections?

It's not created as 777 (I would have noticed that :), that's before
the umask. So for me it gets created as drwxr-xr-x, as expected.

$ man 2 mkdir:

"""
The argument mode specifies the permissions to use. It is modified by
the process's umask in the usual way: the permissions of the created
directory are (mode & ~umask & 0777). Other mode bits of the created
directory depend on the operating system.
[...]
NOTES
Under Linux apart from the permission bits, only the S_ISVTX mode bit
is honored. That is, under Linux the created directory actually gets
mode (mode & ~umask & 01777). See also stat(2).
"""


Hamish