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From: Cove Schneider <cove@brazil.nbn.com>
Message-Id: <199604101727.KAA10102@brazil.nbn.com>
Subject: shmget(2) question.
To: questions@freebsd.org
Date: Wed, 10 Apr 1996 10:27:44 -0700 (PDT)
Reply-to: "Cove Schneider" <cove@nbn.com>
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In the shmget() man page it says:

SHMGET(2)                  UNIX Programmer's Manual                  SHMGET(2)

NAME
     shmget - obtain a shared memory identifier

SYNOPSIS
     #include <sys/types.h>
     #include <sys/ipc.h>
     #include <sys/shm.h>

     int
     shmget(key_t key, int size, int flag)

[....]

   The mode of a newly created IPC object is determined by OR'ing the fol-
     lowing constants into the flag parameter:

     SHM_R         Read access for user.

     SHM_W         Write access for user.

     (SHM_R>>3)    Read access for group.

[....]

But SHM_R and SHM_W are never defined in sys/shm.h or anywhere
else. Stevens APUE p. 467: uses SHM_R and SHM_W. Is this a bug in
the shmget(2) man page, are these missing from the header files?
I discovered that the defines existed under Solaris. 

This doesn't seem very nice.. Can any one help me out on this one?

Thanks,
Cove

-- 
Cove Schneider   /   North Bay Network  -  Hacker   /   cove@nbn.com