Path: utzoo!utgpu!watserv1!watmath!att!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!samsung!cs.utexas.edu!uunet!auspex!guy
From: guy@auspex.auspex.com (Guy Harris)
Newsgroups: comp.unix.internals
Subject: Re: Help! modifying os to support >14 char filenames (sys V.3)
Keywords: help,unix,internals
Message-ID: <4040@auspex.auspex.com>
Date: 9 Sep 90 22:53:57 GMT
References: <1430@engadm2.csd.mot.com> <3958@bingvaxu.cc.binghamton.edu>
Organization: Auspex Systems, Santa Clara
Lines: 18

>In U*X a directory entry is defined in dir.h -- you _may_
>redefine the maximum length & recompile.

And then dump and restore all your file systems, since you've then just
changed the on-disk file format.  Also, fix up a bunch of programs that
read directories directly to use "readdir()" instead, and make sure no
programs "know" that file names are limited to 14 characters.

>Why have you got only 14-char filenames?

Presumably because he's using a system with only the V7-based S5 file
system. 

>Is this _really_ V?

The standard file system with S5 releases prior to S5R4 is V7-based, and
has a 14-character limit on file names, yes.  S5R4 also comes with the
4.3BSD file system, which has a 255-character limit....