Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!lll-tis!ames!ptsfa!ihnp4!att-cb!mandrill!hal!ncoast!axcess!allbery
From: allbery@axcess.UUCP (Brandon S. Allbery)
Newsgroups: comp.sys.att
Subject: Re: Seeking a method to "read" a DOS directory
Message-ID: <155@axcess.UUCP>
Date: 17 Feb 88 13:50:25 GMT
References: <902@cblpe.ATT.COM>
Organization: aXcess Company, Mentor, Ohio
Lines: 27
Summary: An interface like BSD dir(3) can be built from the "find first" and
	 "find next" wildcard DOS calls.

In article <902@cblpe.ATT.COM>, jrm@cblpe.ATT.COM (John Miller) writes:
+---------------
| Hi, in a UNIX environment (using the 'C' language), it is possible to "open"
| a directory. The result is a list of the files that are in the particular
| directory - very straightforward.
| 
| I would like obtain a list of files that are in a DOS directory using
| Microsoft 'C', version 4 or 5. Near as I can tell, you are not permitted
| to "open" a directory in dos. Further, I have not been able to find a
| function in the MSC library, or a function in the DOS or BIOS library
| that will permit me to find out what files are in a given directory.
+---------------

First -- System V allows you to open a directory as a file, and acts as you
say.  While you can open a BSD directory as a file, it's less than useful; so
there are special directory-reading calls available.  These have been ported
to System V and even to DOS; they went through comp.sources.misc a few months
ago.

Second -- You can emulate directory reading by using the "find first" and
"find next" system calls (DOS FC 4EH and 4FH, respectively) with a filename of
"*.*".  This is how the BSD-compatible library is done.
-- 
 ___  ________________,	Brandon S. Allbery	       cbosgd \
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