hi everyone,
--- Seth Arnold <sarnold@wirex.com> wrote:
> On Fri, Jun 14, 2002 at 05:05:32PM -0700, Karthik
>
> Indeed, ls can't show you everything. I suggest
> looking at the stat(2)
> system call for some ideas on easily available
> information. To get this
> information from the kernel, look at the struct
> inode structure, defined
> in include/linux/fs.h. The block information is
> located within the union
> u that contains roughly 27 filesystem specific
> information; the on-disk
> layout is specific to the filesystem, so you'll have
> to read the
> specific structures for the filesystems you are
> interested in.
>
> Note that with the md driver, or hardware raid
> devices the block number
> is going to be a logical block number; the specific
> block devices may
> assing the data to other blocks on the device.
> (Standard IDE and SCSI
> devices also feel free to remap blocks around the
> device to work around
> errors, but I don't think the kernel is in charge of
> those changes,
> though I think the SMART standard can help the
> kernel figure out some
> information about the devices.)
>
> I hope this helps you find what you need.
Thanks Seth, that really helped me in figuring out the
way to get all the details that I wanted.
Thanks Manoj for the link but I was not able to figure
out which command gives me all the details including
the block addresses.
The struct inode {} has all the details but I am not
able to retrieve the contents for the specific inode
for which i need the details.
I came across this system call namei()
prototype is :
int namei(const char * pathname, struct inode **
result_node)
This gives me the details of the inode of a specific
file whose path is "pathname".
I am not able to use this sys.call and when i checked
the source codes I am not able to find the system call
namei() at all.
Has anyone used this sys.call or have come across this
system call ?? this solves my entire problem as i just
need to pass the path name to it and it puts the
result into the result_node structure from where i can
access all the details needed.
Thanks for all your replies
Karthik
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