Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!mimsy!chris
From: chris@mimsy.umd.edu (Chris Torek)
Newsgroups: comp.unix.questions
Subject: Re: fopen ( ..., "a" ) --- how does the "a" work?
Message-ID: <21152@mimsy.umd.edu>
Date: 7 Dec 89 13:11:14 GMT
References: <3250@hub.UUCP> <895@hsi86.hsi.UUCP>
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 14

In article <895@hsi86.hsi.UUCP> stevens@hsi.UUCP (Richard Stevens) writes:
>... Interesting, however, is that the 4.3BSD source differs.  It does
>an lseek to the EOF when fopen is called, and that's it.  4.3 does
>have an O_APPEND option to open, but it doesn't appear to be used.

This is scheduled to change (to match the wording in the ANSI standard).
I also wrote code to assert FAPPEND mode on fdopen(fd, "a").  This is a
bit nastier, but would seem to be required for reasons of sanity.  I do
not, however, clear FAPPEND on other fdopen calls.

What does SysV do?  What does the SVID say?
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain:	chris@cs.umd.edu	Path:	uunet!mimsy!chris