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Date: Mon, 31 Oct 2022 13:25:39 -0400
From: Rich Felker <>
To: puwenxu <>
Cc: "" <>
Subject: Re: Question on 2b2c8aafce9d80f9d58652643538f4d58e82b856

On Mon, Oct 31, 2022 at 03:41:43PM +0000, puwenxu wrote:
> Dear maintainer,
>        I'm sorry for my last question firstly.

>        I'm not sure whether I have right to show you full test codes
> because the discipline of my company is strict at it. The error
> occurs when the test case is running the following code.
> err = msgctl(msqid, IPC_STAT, NULL);

This is an erroneous test case. The contract of msgctl with the
IPC_STAT command is that the buf pointer must point to an object of
type struct msqid_ds. NULL does not point to such an object.


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