How to create file with permission 666?

[Eric J.Hu]

Hi,

I have a question about the open function in linux. I want to create a file with permission 666(read and write by others), the code as following:

open("/tmp/test", O_CREAT, 0666);

But the file always can not set the others write permission, could someone help me on this question?


Thanks,
Eric

 

[Keith Thompson]

I have a question about the open function in linux. I want to create a
file with permission 666(read and write by others), the code as following:

open("/tmp/test", O_CREAT, 0666);

But the file always can not set the others write permission, could someone
help me on this question?

Not here. Try comp.unix.programmer.

 

[junky_fellow]

Hi,

I have a question about the open function in linux. I want to create a file with permission 666(read and write by others), the code as following:

open("/tmp/test", O_CREAT, 0666);

But the file always can not set the others write permission, could someone help me on this question?


Thanks,
Eric

<OT>
The third argument mode specified in the open system call, is modified
by the process's
"umask". The permissions of the created file are (mode & ~umask).
I guess the umask set for your process is 022.
You may see the current umask setting by command "umask".
See the man page for umask for details.
<OT>

 

[Eric J.Hu]

Junky_fellow,

Great thanks! It works, the problem is my umask was set to 022.


Regards,
Eric
------------------------------------------

 

[Christopher Benson-Manica]

[-- text/plain, encoding quoted-printable, charset: iso-8859-1, 14 lines --]

I have a question about the open function in linux. I want to create a file with permission 666(read and write by others), the code as following:

(snipped)

And when you post to comp.unix.programmer as Keith recommended, I'm
quite sure they would appreciate it if you would avoid posting
multipart-encoded messages.