Re: [PATCH] SUSv2 msgctl compliance

[Alan Cox]

> For msgctl SUSv2 states:
> 
> "IPC_SET can only be executed by a process with appropriate privileges
> or that has an effective user ID equal to the value of msg_perm.cuid
> or msg_perm.uid in the msqid_ds data structure associated with
> msqid. Only a process with appropriate privileges can raise the value
> of msg_qbytes."
> 
> The current linux behaviour is to allow for the value of msg_qbytes to
> be raised even if the process is not privileged. The following
> patch (against 2.4.19pre8) fixes this problem:

This is not a bug. We have deemed all users to have appropriate priviledge
and in fact the generic SYS5 unix interpretation of this one seems if anything
to be bogus. We are standards compliant.

Alan