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From: arnold@gatech.CSNET (Arnold Robbins)
Newsgroups: net.bugs.4bsd
Subject: 4.2BSD <fcntl.h> does not define O_CREAT, and other O_.* constants
Message-ID: <640@gatech.CSNET>
Date: Wed, 24-Jul-85 14:27:01 EDT
Article-I.D.: gatech.640
Posted: Wed Jul 24 14:27:01 1985
Date-Received: Thu, 25-Jul-85 22:08:19 EDT
Distribution: net
Organization: Pr1mebusters!
Lines: 31

Subject: 4.2 BSD <fcntl.h> is incomplete

Index: /usr/include/fcntl.h, /usr/include/sys/file.h

Description:
	(This has probably been reported before, and I just haven't
	seen it....)

	4.2 has the System III/V extended open(2) system call, but
	the include file <fcntl.h> is incomplete.  In order to fully use
	the new open, you have to include <sys/file.h>.  The System V
	open defines all of O_RDONLY, O_WRONLY, O_RDWR, O_NDELAY, O_APPEND,
	O_CREAT, O_TRUNC, and O_EXCL, and 4.2 does have these, but
	in <sys/file.h>. The file <fcntl.h> only defines the first 5.
	This is an unnecessary portability stumbling block.

Repeat-by:
	Try to port a System V program which includes <fcntl.h> and uses
	open (file, O_RDWR|O_CREAT, 0666), and watch it die.

Fix:
	Add the necessary definitions to <fcntl.h> from <sys/file.h>, or
	better yet, change the contents of <fcntl.h> to be
	#include <sys/file.h>, or make it a symbolic link to <sys/file.h>.
-- 
Arnold Robbins
CSNET:	arnold@gatech	ARPA:	arnold%gatech.csnet@csnet-relay.arpa
UUCP:	{ akgua, allegra, hplabs, ihnp4, seismo, ut-sally }!gatech!arnold

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