os: OpenFile can not set mode

[galric]

var mode os.FileMode = 0666
os.OpenFile("g2", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, mode)

create file with mode
-rw-rw-r-- 1 admin admin 0 Apr 21 18:25 g2

not
-rw-rw-rw- 1 admin admin 0 Apr 21 18:24 g2

miss w

At go version go1.4.1 linux/amd64

[mattn]

Probably, your umask is 0022.
http://man7.org/linux/man-pages/man2/open.2.html

The effective permissions are modified by the process's umask in the usual way: The permissions of the created file are (mode & ~umask).

[galric]

Thank you, you are right