Path: utzoo!utgpu!watserv1!watmath!att!occrsh!uokmax!apple!usc!samsung!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: <4048@auspex.auspex.com>
Date: 11 Sep 90 18:16:17 GMT
References: <3958@bingvaxu.cc.binghamton.edu> <4040@auspex.auspex.com> <1990Sep10.095750.28958@usaos.uucp>
Organization: Auspex Systems, Santa Clara
Lines: 14

>>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....
>
>Can you say POSIX compliance?

Yes, I can.  I can even say it on a system with a 255-character limit on
filenames; there is *NOTHING* about a limit higher than 14 characters
that violates POSIX.  POSIX says the *minimum* limit that a system may
impose is 14 characters.

The *actual* limit is pathname-dependent (consider an S5R4 system with
both S5 and UFS file systems mounted, for example), and its value for
some particular directory can be fetched with "pathconf()".