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From: dougm@ico.UUCP (Doug McCallum)
Newsgroups: comp.unix.questions
Subject: Re: 4.2BSD directory routines on SV???
Message-ID: <1359@ico.UUCP>
Date: Fri, 17-Jul-87 19:23:06 EDT
Article-I.D.: ico.1359
Posted: Fri Jul 17 19:23:06 1987
Date-Received: Sat, 18-Jul-87 17:13:42 EDT
References: <276@rruxa.UUCP> <2733@ulysses.homer.nj.att.com>
Reply-To: dougm@ico.UUCP (Doug McCallum)
Organization: Interactive Systems Corporation, Boulder
Lines: 10

In article <2733@ulysses.homer.nj.att.com> ekrell@ulysses (Eduardo Krell) writes:
>In article <276@rruxa.UUCP> jpage@rruxa.UUCP (J Page) writes:
>
...
>System V Release 3 has all the directory routines in the C library.
>mkdir is not one of them, however.

And they aren't fully compatible with the 4.2 BSD version either.
The data structure returned by readdir is different.  No namelen field.
Other than that, they are there.