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IPC Message Queue Permissions

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Mike Karlesky

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May 30, 1997, 3:00:00 AM5/30/97
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I have a process running on a port that is used to stream video data. It
is only the streaming portion of the setup. There is another program that
interfaces with the camera we have and is supposed to communicate with
port the stream-er is running on. When I start the frame-grabber program
with the command line option to specify the port it is supposed to talk
to, it replies that the connection is refused. The setup uses System V IPC
and memory.

When I run ipcs I get the following output:

------ Shared Memory Segments --------
shmid owner perms bytes nattch status
0 nobody 666 52 1
<snipped>

------ Semaphore Arrays --------
semid owner perms nsems status
0 nobody 666 20
<snipped>

------ Message Queues --------
msqid owner perms used-bytes messages
0 root 700 0 0

My thought is that problem is right above. the msqid 0, only has perms 700
when it should probably have something like 766. Is anyone familiar with
this? How do I change those permissions up there? Am I on the right track?

I would really appreciate any help.

Thanks ahead of time.

Sincerely,
Mike Karlesky


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