Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ames!mailrus!cornell!uw-beaver!ssc-vax!uvicctr!tholm
From: tholm@uvicctr.UUCP (Terrence W. Holm)
Newsgroups: comp.os.minix
Subject: Re: directory(3)
Message-ID: <581@uvicctr.UUCP>
Date: 19 Dec 88 21:37:38 GMT
References: <575@uvicctr.UUCP> <7488@ea.ecn.purdue.edu>
Reply-To: tholm@uvicctr.UUCP (Terrence W. Holm)
Organization: University of Victoria, Victoria B.C. Canada
Lines: 27

In article <7488@ea.ecn.purdue.edu> housel@en.ecn.purdue.edu (Peter S. Housel) writes:
>
>	There is a problem with these routines as distributed here.

OK, did Terrence not test this code well enough before posting?
Or, was Peter so anxious to post, that he didn't install and
test exactly what I posted?


> ... (The comment in dirent.h says that DIRBUF should be
>larger than the "filesystem buffer size," but it doesn't explain why.)

It must be larger because directory entries are expanded to the
system-independent format "struct dirent". For version 7, a 16 byte
directory entry may be expanded to as much as 28 bytes, ie. almost
twice as large.


>	Probably the best solution is to compile getdents.c with a
>"-DDIRBLKSIZ=512" compiler flag.

See /usr/include/sys/dir.h


			Terrence W. Holm
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