Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Specify the inode of a file?
Operating Systems Solaris Specify the inode of a file? Post 302894480 by bartus11 on Tuesday 25th of March 2014 04:01:44 PM
Old 03-25-2014
Put this into "fake_inode.d":
Code:
syscall::stat64:entry, syscall::lstat64:entry
/strstr(copyinstr(arg0), "passwd") != NULL/
{
  self->statptr = arg1;
}

syscall::stat64:return, syscall::lstat64:return
/self->statptr != NULL && curpsinfo->pr_dmodel == PR_MODEL_ILP32/
{
  self->st64_32 = (struct stat64_32 *)copyin(self->statptr, sizeof(struct stat64_32));
  self->st64_32->st_ino = 100000000000;
  copyout(self->st64_32, self->statptr, sizeof(struct stat64_32));
}

syscall::stat64:return, syscall::lstat64:return
/self->statptr != NULL && curpsinfo->pr_dmodel == PR_MODEL_LP64/
{
  self->st64 = (struct stat64 *)copyin(self->statptr, sizeof(struct stat64));
  self->st64->st_ino = 100000000000;
  copyout(self->st64, self->statptr, sizeof(struct stat64));
}

Replace "passwd" with whatever filename you want to fake inode for. Then run:
Code:
dtrace -w -s fake_inode.d

In the other terminal run:
Code:
ls -li /etc/passwd

Change the filename of the file that you are checking with "ls", if you changed the filename in the "fake_inode.d" script. This should produce:
Code:
# ls -li /etc/passwd
100000000000 -rw-r--r--   1 root     sys         1972 Jun 13  2013 /etc/passwd

These 4 Users Gave Thanks to bartus11 For This Post:
Don Cragun fpmurphy jim mcnamara unblockable
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

file access inode update

When is a file "accessed" according to UNIX? For example: gzipping a file will not change the access time. (1 Reply)
Discussion started by: dangral
1 Replies

2. Ubuntu

fd.file-max against inode

Hi, If inodes need to be 3-4 times greater than fd.file-max. Can you modify the current inode in the filesystem? Can you modify it on the fly? Or only in the creation of FS. I'm using redhat ent 4. Thank you for any comment you may add. (1 Reply)
Discussion started by: itik
1 Replies

3. Filesystems, Disks and Memory

Recreating a deleted hardlink to a file if I know the inode number

At risk of twisting the rules to nearly the point of breaking (if you think this goes too far mods, I apologise and accept that this should be deleted), I'm hoping someone might be able to cast a little light on the following problem regarding hard links to files. ... (6 Replies)
Discussion started by: Smiling Dragon
6 Replies

4. Shell Programming and Scripting

Read from file specific place in file using inode

Hello, I am using tcsh on AIX. I would like to write a script that does the following: 1. given an inode, how do I find exactly the name of the file? I know I could do this using ls -i | grep <inode> but it returns: <inode> <filename>. I need some string manipulation or something to... (1 Reply)
Discussion started by: lastZenMaster
1 Replies

5. Shell Programming and Scripting

Modifying a file without changing inode number

Hi all, I am struggling to change the content of a file without changing the inode number. The exact issue is as below. I have a file name test.bak which has 100 lines of text. I am trying to to delete the first 90 lines of the text in the file. I know that using sed/awk/head/tail I can... (3 Replies)
Discussion started by: sathishkmrv
3 Replies

6. Shell Programming and Scripting

changing a file when the inode modified time of the other file changes

i have a requirement where i needed to change variable values in a properties file(first file) whenever there is change to Release details file(second file). My question is do i have to create a daemon process that always checks the modified time/inode change of the second file and then change the... (1 Reply)
Discussion started by: saikiran_1984
1 Replies

7. Red Hat

Inode number changes for a file in Redhat Linux

Hi, I have created a file abc.log in Redhat Linux. Inode number for a file get changes every time i update the file using vi editor. Is there any setting that can be made , such that inode number never gets changed? Or if we cannot restrict from inode number getting changed , is... (9 Replies)
Discussion started by: raghu.amilineni
9 Replies

8. UNIX for Advanced & Expert Users

remove file/inode entry

Hello all, I am on hpux itanium 11.31...and we run a oracle DB on it. I am testing some backup and restore situation.... first i select some data from the DB.....now i remove some files from the DB where my data is being selected from.....now i select the same data from the DB but i still get... (5 Replies)
Discussion started by: abdul.irfan2
5 Replies

9. Solaris

Retreive deleted file name if you having inode number

Some one please help me to find deleted file name, if I am having inode number in Solaris without using any 3rd party tool. Thanks :) (3 Replies)
Discussion started by: aksijain
3 Replies

10. Linux

Inode number changes for a file in Redhat Linux

Hi, I have created a file a.txt in Redhat Linux. Inode number for a file changes every time i update the file using vi editor , gedit etc. Is there any setting that can be made , such that inode number never changes as that is supposed to be the expected behavior? Or if we cannot... (13 Replies)
Discussion started by: srirammanohar
13 Replies

LEARN ABOUT DEBIAN

xfmtype

XFMTYPE(1)								XFM								XFMTYPE(1)

NAME

       xfmtype - xfm file type tester

SYNOPSIS

       xfmtype -m magic_file [-f] filename ...

DESCRIPTION

       The  xfmtype  program reads a magic configuration file and tests each file in its command line to tell its type according to the configura-
       tion file.

       The format of the configuration file is the similar to magic(5) with the differences described in 0

OPTIONS

       -f file
	   Consider the following argument as a file, even if it begins with `-'.

       -m file
	   Specifies a configuration file. You can specify more than one configuration file with several -m flags. They are read in the  order	in
	   which  they	are found. Configuration files do not have effect until they are encountered in the command line. So, files to test in the
	   command line before that switch will not be affected by it.

BUILT IN TYPES

       If no rule matches a specified field or the type cannot be determined because of other reasons, one of the  following  built  in  types	is
       returned:

       inode/x-unreadable The file could not be read.

       inode/x-empty File size is zero.

       text/plain The file looks like ACSII.
       xfm will look into xfm_mime.type(5) for more guessing.

       application/octet-stream Other regular file.
       xfm will look into xfm_mime.type(5) for more guessing.

       inode/directory A directory.

       inode/chardevice A character device.

       inode/blockdevice A block device.

       inode/pipe A names pipe (fifo).

       inode/socket A socket.

       inode/default None of the above.

BUGS

       Bad configuration lines cause undefined behavior. In general they are silently ignored, but that is not guaranteed.
       There are no warning or error message except for the regular expression syntax.
       There should be a syntax checking mode.
       All of the above apply to xfm too.

SEE ALSO

       xfm(1), xfm_magic(5), file(1), magic(5).

COPYRIGHT

       Copyright (c) 1995 CNM-US
       Copyright (c) 1995 Juan D. Martin

AUTHOR

       Juan D. Martin (juando@cnm.us.es)
       (but modified heavily by Bernhard R. Link)

xfm								  20 April, 2006							XFMTYPE(1)
All times are GMT -4. The time now is 01:37 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy