Path: utzoo!attcan!uunet!husc6!mailrus!ames!oliveb!sun!gorodish!guy
From: guy@gorodish.Sun.COM (Guy Harris)
Newsgroups: comp.unix.wizards
Subject: Re: Shared memory info - how does one use struct shminfo?
Message-ID: <56530@sun.uucp>
Date: 14 Jun 88 21:16:41 GMT
References: <1074@anasaz.UUCP>
Sender: news@sun.uucp
Lines: 10

> /usr/include/sys/shm.h ends with an interesting structure, shminfo,
> which contains fields for various system config parameters related
> to System V shared memory. I've never seen a reference to how one
> should use this structure. Anybody know?

Yes.  You refer to it by opening "/dev/kmem", finding the address of the struct
named "shminfo" by looking through your kernel's namelist, and using that
address to find the right place in "/dev/kmem" to read.

In other words, there's no system call interface that gives it to you.