Very Computer

Hello, I'm looking for a way to get the list of the hard-drives an the
list for all the partitions in each hard-disk. I think the is a system
call to to this.

Can you please help me. Thanks

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What about "fdisk -l" ?

Tux

Or cat /proc/partitions ?

Phil

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http://www.kantaka.co.uk/ .oOo. public key: http://www.kantaka.co.uk/gpg.txt

yes but I would like a function to do this (if there isn't, I
will code it)

Quote:> Phil

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> http://www.kantaka.co.uk/ .oOo. public key: http://www.kantaka.co.uk/gpg.txt

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                Oce-Industries SA
                1, rue Jean Lemoine
                94015 Creteil cedex France                
                phone: 33-1-48988000  fax: 33-1-48985450
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??? You want to write a function to retrieve information which is
already there ???
Hey, this is Linux, not any other OS!

--
Josef M?llers (Pinguinpfleger bei FSC)
        If failure had no penalty success would not be a prize (T.  Pratchett)

I want to write a C-Program that needs to know all hard-disk on the
current system and all partitions in each hard-disk;
I can write a function that reads /proc/partitions or maybe, if it
exists, I can use a function that does the same.

Sorry if it was not clear.
thanks to answer me

Quote:> --
> Josef M?llers (Pinguinpfleger bei FSC)
>         If failure had no penalty success would not be a prize (T.  Pratchett)

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--------------------------------------------------------
                Oce-Industries SA
                1, rue Jean Lemoine
                94015 Creteil cedex France                
                phone: 33-1-48988000  fax: 33-1-48985450
--------------------------------------------------------

 fp = popen("cat /proc/partitions", "r" );

Now can you do 3D pie's with wedgies?

--
We stand on the shoulders of those giants who coded before.
Build a good layer, stand strong, and prepare for the next wave.
Guide those who come after you, give them your shoulder, lend them your code.

Reading /proc/partitions probably is the easiest way to get
the information. There probably exist code to parse this file,
but finding it might not be easy.

Using fdisk -l does not work unless you are root, and might be
less portable than using /proc/partitions.

--
Kasper Dupont

If I need to find out characteristics of all partitions: active, bootable,
file type,
primary, logical...  Is there any system calls, APIs or ioctl()s available?
How
does cfdisk do it?

|> >

|> > >
|> >
|> > I want to write a C-Program that needs to know all hard-disk on the
|> > current system and all partitions in each hard-disk;
|> > I can write a function that reads /proc/partitions or maybe, if it
|> > exists, I can use a function that does the same.
|> >
|> > Sorry if it was not clear.
|> > thanks to answer me
|>
|>  fp = popen("cat /proc/partitions", "r" );
|>
|> Now can you do 3D pie's with wedgies?
|>
|
| If I need to find out characteristics of all partitions: active, bootable,
| file type,
| primary, logical...  Is there any system calls, APIs or ioctl()s available?
| How
| does cfdisk do it?

It reads the device directly.  Start with the MBR, then based on what
is in there, you mean need to read other blocks, including interpreting
them in different ways (e.g. BSD partitions should have a disklabel).

If you need to find out what the kernel's take on the partitions is,
then hopefully some ioctl() exists for your needs, or /proc/partitions
as what you need to know.

--
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| Phil Howard - KA9WGN |   Dallas   | http://linuxhomepage.com/ |

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