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From: johno@cbmvax.commodore.com (John Orr - CATS)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Checking to see if a file's a link
Message-ID: <21041@cbmvax.commodore.com>
Date: 29 Apr 91 14:06:20 GMT
References: <15127@darkstar.ucsc.edu>
Reply-To: johno@cbmvax.commodore.com (John Orr - CATS)
Organization: Commodore, West Chester, PA
Lines: 28

In article <15127@darkstar.ucsc.edu> davids@ucscb.ucsc.edu (Dave Schreiber) writes:
>
>
>Is there a way, under 2.0, to examine a file or directory from a program
>and determine whether or not it's a link?


from <dos/dosextens.h>:

/* Types for fib_DirEntryType.  NOTE that both USERDIR and ROOT are      */
/* directories, and that directory/file checks should use <0 and >=0.    */
/* This is not necessarily exhaustive!  Some handlers may use other      */
/* values as needed, though <0 and >=0 should remain as supported as     */
/* possible.                                                             */
#define ST_ROOT         1
#define ST_USERDIR      2
#define ST_SOFTLINK     3       /* looks like dir, but may point to a file! */
#define ST_LINKDIR      4       /* hard link to dir */
#define ST_FILE         -3      /* must be negative for FIB! */
#define ST_LINKFILE     -4      /* hard link to file */


If you are using Examine() and ExNext() to do your directory scanning,
just compare the FileInfoBlock's fib_DirEntryType field to the above
#defines.


--John