path_lookup for executable

path_lookup for executable

[e m]

I am trying to get inode for an executable program. For example, I wish to 
get inode for /usr/jdk/bin/java file in a module. The following call always 
return an error. Is there a way to get the inode of current process, 
assuming I have access to "current"

PLEASE CC' eyubo@hotmail.com your answers.

Thanks
Eyub

      err = path_lookup("/ /usr/jdk/bin/java", 
LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_NOALT, &nd);

    path_release(&nd);

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Re: path_lookup for executable

[Arjan van de Ven]

On Mon, 2006-11-20 at 04:00 +0000, e m wrote:
> I am trying to get inode for an executable program. For example, I wish to 
> get inode for /usr/jdk/bin/java file in a module. The following call always 
> return an error. Is there a way to get the inode of current process, 
> assuming I have access to "current"


Hi,

what makes you think the current executable has any meaning? It can be
unlinked, renamed or moved in the directory hierarchy since the program
was started... (and if you would go by inode number.. then there's
multiple answers possible)

Re: path_lookup for executable

[e m]

Thanks for response. Is there any other way to identify if "current"  is a 
certain program  such as java.  You cannot surely go by name (comm field of 
task_struct). Since  It could be linked. In another word, I want to identify 
the executing current program. Any help appreciated.

Thanks,
Eyub


>From: Arjan van de Ven <arjan@infradead.org>
>To: e m <eyubo@hotmail.com>
>CC: linux-kernel@vger.kernel.org
>Subject: Re: path_lookup for executable
>Date: Mon, 20 Nov 2006 09:05:57 +0100
>
>On Mon, 2006-11-20 at 04:00 +0000, e m wrote:
> > I am trying to get inode for an executable program. For example, I wish 
>to
> > get inode for /usr/jdk/bin/java file in a module. The following call 
>always
> > return an error. Is there a way to get the inode of current process,
> > assuming I have access to "current"
>
>
>Hi,
>
>what makes you think the current executable has any meaning? It can be
>unlinked, renamed or moved in the directory hierarchy since the program
>was started... (and if you would go by inode number.. then there's
>multiple answers possible)
>
>

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Re: path_lookup for executable

[Arjan van de Ven]

On Mon, 2006-11-20 at 19:14 +0000, e m wrote:
> Thanks for response. Is there any other way to identify if "current"  is a 
> certain program  such as java.  You cannot surely go by name (comm field of 
> task_struct). Since  It could be linked. In another word, I want to identify 
> the executing current program. Any help appreciated.

since the binary may have been removed from the disk entirely (and no
that is not a corner case, a lot of the background daemons will have
that if their "original" gets rpm-updated or similar)... what would this
mean? What do you want to use it for?



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