Path: utzoo!attcan!uunet!ncrlnk!ncrcae!sauron!wescott
From: wescott@sauron.Columbia.NCR.COM (Mike Wescott)
Newsgroups: comp.bugs.sys5
Subject: Re: O_EXCL flag on open of character tty device.
Message-ID: <1314@sauron.Columbia.NCR.COM>
Date: 8 Nov 88 21:52:54 GMT
References: <1464@holos0.UUCP>
Reply-To: wescott@sauron.Columbia.NCR.COM (Mike Wescott)
Distribution: na
Organization: Entry Level Systems Development, NCR Corp., Columbia, SC
Lines: 15

In article <1464@holos0.UUCP> fsg@holos0.UUCP (Frank Glass) writes:
> 
> 	My understanding from the manuals is that the O_EXCL flag can
> be used to exclusively open a device.

Nope. The man page says:

	O_EXCL	If O_EXCL and O_CREAT are set, the function open will
		fail if the file exists.

It does give you a chance to create a new file and know that you didn't clobber
anything.
-- 
	-Mike Wescott
	 mike.wescott@ncrcae.Columbia.NCR.COM