EnigmA Amiga Run 1996 June/EnigmA AMIGA RUN 08 (1996)(G.R. Edizioni)(IT)[!][issue 1996-06][EARSAN CD VII].iso/earcd/amos/amsls496.lzh/AMOSLIST/[e-mail]_Wed Apr 24 11:41:29 1996.msg

Internet Message Format | 1996-05-01 | 4KB

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    (1.37.109.4/16.2) id AA24444; Wed, 24 Apr 96 14:13:21 +0200
Subject: Re: LDos problems
To: [e-mail]
Date: Wed, 24 Apr 96 14:13:21 METDST
Cc: [e-mail] (Discussion list)
In-Reply-To: <[e-mail]>; from "Ville Ranki" at Apr 23, 96 10:16 pm
From: [e-mail] (Martijn Wehrens)
Organisation: Utrecht University
Reply: [e-mail]
Reply-To: [e-mail]
Mailer: Elm [revision: 70.85]
Status: RO
X-Status:

About the dir-command
>
> LDos would have the excellent dir commands i'd need, but they seem to
>
If the dir-command is the only command you need from Ldos, you
may want to implement that one via amos (with doscalls)
In amigados (most dos-es anyway) you create a 'lock' on your
desired directory, if it fails, it  returns null.
Then you may do an 'examine' and an 'exnext'

I suppose this does ring a bell. If you think this is an
option then I will dig out the directory-reading program
which simply gives you the 'fileinfoblock' for every
file which contains all the info you want.
Long ago, someone already posted it (Chris Hodges):

 STRUCTURE FileInfoBlock,0
   LONG    fib_DiskKey      ;
   LONG    fib_DirEntryType ; Type of Directory.
                      ; If < 0, then a plain file.
                         ; If > 0 a directory
   STRUCT fib_FileName,108  ; Null terminated. Max 30 chars used for now
         (other filesystems could of course use more or
          less -MSDUMB- characters)
   LONG   fib_Protection    ; bit mask of protection, rwxd are 3-0.
   LONG   fib_EntryType
   LONG   fib_Size          ; Number of bytes in file
        (note that a LONG is 32bit thus filesize is restricted to 2G !!)
        (2 G may seem a lot, but remember that nowadays people do video
          on their machine...)
   LONG   fib_NumBlocks     ; Number of blocks in file
   STRUCT fib_DateStamp,ds_SIZEOF ; Date file last changed.
   STRUCT fib_Comment,80    ; Null terminated. Comment associated with file
   ; Note: the following fields are not supported by all filesystems.
   ; They should be initialized to 0 sending an ACTION_EXAMINE packet.
   ; When Examine() is called, these are set to 0 for you.
   ; AllocDosObject() also initializes them to 0.
   UWORD  fib_OwnerUID      ; owner's UID
   UWORD  fib_OwnerGID      ; owner's GID

   STRUCT fib_Reserved,32
   LABEL  fib_SIZEOF        ; FileInfoBlock


So, if this contains all you want (eg, the filenote) then you
may pass over Ldos altogether for this particulat part.


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Martijn Wehrens, Theoretical Chemistry Group Utrecht University
email [e-mail]
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