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From: paul@whuts.UUCP (HO)
Newsgroups: net.unix-wizards
Subject: Re: a question on open() and lseek()
Message-ID: <702@whuts.UUCP>
Date: Tue, 15-Apr-86 22:53:10 EST
Article-I.D.: whuts.702
Posted: Tue Apr 15 22:53:10 1986
Date-Received: Thu, 17-Apr-86 01:26:55 EST
References: <2594@brl-smoke.ARPA>
Organization: AT&T Bell Laboratories
Lines: 15

> 	is there any reason to use the sequence:
> 		f = open( file, O_WRONLY );
> 		lseek( f, 0, L_XTND );
> 	instead of the single call:
> 		f = open( file, O_WRONLY | O_APPEND );
> 	
> 	I saw the sequence used in a section of code where the single
> 	call would make sense.
> 	
I think pre-System III's open has only read, write, and read/write
for open(), and the file descriptor returned is used for lseek.

Starting from System III, open() recognizes more flags.

	Paul Ho