Solved

Availability of bios.h on the net

Posted on 2001-06-03
11
3,473 Views
Last Modified: 2007-11-27
Hello. I need urgently to find a location from where i can download bios.h and vwin32.h. This is to be able to use _bios_disk to format a disk so that it is unreadable in dos.I want to format a disk somehow in win98 so that it is unreadble in DOS.
if somebody can give me any code to do this (in vc or assembly) i would be very grateful.
ps: I want to program this in vc++. I have already found out DeviceIoControl and _bios_disk but these require the bios.h . Thanks.
ps: Thanks sunbow, can u please suggest the code for this at snb2000@rediffmail.com
0
Comment
Question by:snb2001
11 Comments
 
LVL 47

Expert Comment

by:dbrunton
ID: 6151687
Surely that file comes with vc++ ?

It comes with Borland's Turbo C.
0
 
LVL 4

Expert Comment

by:prashant_n_mhatre
ID: 6153238
Yeah..I agree with dbrunton
Also it comes with Watcom C/C++ (bios.h)

You may get source code at(may not useful to you):

(bios.h) ==>

http://minnie.tuhs.org/FreeBSD-srctree/newsrc/i386/include/pc/bios.h.html

(vwin32.h) ==>

http://src.openresources.com/debian/src/libs/HTML/S/v1_1.17.orig%20v1-1.17.orig%20includew%20v%20vwin32.h.html#35

I'll suggest to download Borland C++ Builder (command line tools)from

http://www.borland.com

Thanks
0
 
LVL 24

Expert Comment

by:SunBow
ID: 6153335
ditto....  (btw: M$.Win does 'like' to permit user to access low level)
On Web, try CodeGuru, ex.:
http://www.codeguru.com/cgi-bin/bbs/wt/showpost.pl?Board=vc&Number=243991
http://www.codeguru.com/cgi-bin/bbs/wt/showpost.pl?Board=vc&Number=244156

> "so that it is unreadable in dos"
Probably all you need do is address the placement of code instructions in the first sectors with your own code. Of course, do not make it bootable. Just remember, if you can write code to access differently, so can someone else, AND, many programs will either treat as virus or bad disk, adding confusion to whoever needs to run it.
0
 
LVL 24

Expert Comment

by:SunBow
ID: 6153344
(oops, s/b:) ..btw: M$.Win does NOT 'like' to permit user to access low level code
0
 
LVL 4

Expert Comment

by:prashant_n_mhatre
ID: 6153507
I'll check it @my home PC.
0
Threat Intelligence Starter Resources

Integrating threat intelligence can be challenging, and not all companies are ready. These resources can help you build awareness and prepare for defense.

 
LVL 4

Expert Comment

by:prashant_n_mhatre
ID: 6153508
I'll check those files @my home PC.
0
 
LVL 24

Expert Comment

by:SunBow
ID: 6160464
Here's some descriptors to beware of:
http://yoyo.cc.monash.edu.au/~davmac/doswin/dosdisk.htm

Another thought, depending on needs, many people simply get the hard drive (space/cheap) and linux, which is theoretically free code/OS.

Linux gives you formatting utilities, that are compatibly incompatible with dos/win. What I mean is that the format can end up recognizable to MSDOS in a way that it will more often reject any user attempt to write to disk, claiming there is something there, dunno what, some unknown OS, etc. So it (1) will not read, (2) will not write, (3) preserve your work, (4) be readable in an alternative shareable format.

Linux, btw, has capability to write back to dos diskette or fat16 HD, usually (depends on who's version you get), with commands very similar to dos, like dir and copy. Thus when in linux environment, you can move real dos files off the dos part of the machine, or back to dos machine again, without having to do any low-level programming. When in the linux formatted part, Dos will not read, but it'll know something is there so you can better avoid uninformed deletions.

For exercising an assembler to use bios, try on interrupt 13:
Function 05 format cylinder
Function 09 Adapt to foreign drives

Note, Windows environment does not want to permit you to access/run low-level I/O. It wants to maintain readability.

For protecting data, consider encrypting files, then decrypting. A good ZIP package may do that efficiently enough for your purpose.
0
 
LVL 24

Expert Comment

by:SunBow
ID: 6161115
With the time, to go on the cheap:
http://www.freesoftware.com/
0
 
LVL 24

Expert Comment

by:SunBow
ID: 6161135
Go here for 90% of the assembler code:
http://www.experts-exchange.com/jsp/qShow.jsp?ta=progsoftgen&qid=20129928
Note: you need not read disk, but should initialize buffer to zero
0
 
LVL 54

Expert Comment

by:nico5038
ID: 7466758

No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
 - PAQ'd and pts removed
Please leave any comments here within the
next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER !

Nic;o)
0
 

Accepted Solution

by:
modulo earned 0 total points
ID: 7506198
Finalized as proposed

modulo

Community Support Moderator
Experts Exchange
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
MaxSpan challenge 9 67
noX challenge 17 76
array11 challenge 16 52
Modify a small python script 19 53
A short article about a problem I had getting the GPS LocationListener working.
This is an explanation of a simple data model to help parse a JSON feed
In this fifth video of the Xpdf series, we discuss and demonstrate the PDFdetach utility, which is able to list and, more importantly, extract attachments that are embedded in PDF files. It does this via a command line interface, making it suitable …
In this seventh video of the Xpdf series, we discuss and demonstrate the PDFfonts utility, which lists all the fonts used in a PDF file. It does this via a command line interface, making it suitable for use in programs, scripts, batch files — any pl…

759 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now