Sponsored Content
Top Forums Programming Editing or Adding to ELF string tables Post 302255591 by Dhodder on Thursday 6th of November 2008 07:09:41 PM
Old 11-06-2008
Perhaps I should clarify.

Assume that I don't have the source code - I can't compile extra info into the executable. I only have the binary.

There are various sections in the ELF headers - and after some research I thought that the best place to append strings would be the string tables. But, I'm not sure if it's possible to edit the binary - tho there is a tool called elfedit, written by a sun dev, which does exactly this (well, he modifies the runtime paths), but I can't find its source code. So - I'm assuming this behaviour is exposed in the API via libelf.

Some references -
http://people.freebsd.org/~jkoshy/download/libelf/article.html
Linker and Libraries Guide

Any ideas, guys?
 

8 More Discussions You Might Find Interesting

1. Linux

editing ELF file

Hello, This is not exactly relevant to Linux kernel but I'm gonna ask any way. Is there any way I can modify a 64-bit ELF object file to make it look like 32-bit ELF object file and link it (using `ld`) with 32-bit ELF file? I tried libelf but was unsuccessful. I had this pretty link... (1 Reply)
Discussion started by: tejuwala
1 Replies

2. Shell Programming and Scripting

string editing in files

Hi all, I'm fairly new to scripting in linux and need some help. I have an file that looks something like this: ~~~~~~~~~~~~~~~~~~~~~~~~~~~ # Some comments # Some comments # Some comments # Some comments # Some comments # Some comments abc:/path/to/somewhere:X... (3 Replies)
Discussion started by: Avatar Gixxer
3 Replies

3. Shell Programming and Scripting

SH Script help. editing string

I have a string that looks like this username|field1|field2|field3 the data has a delimiter of "|" how can i edit field1, keeping the rest of the data the same also how can i edit field2 and 3. (3 Replies)
Discussion started by: nookie
3 Replies

4. Programming

ELF-string table

hello everybody! I want to read the string table of an object file(which is in ELF format). I get the sh_name value but i cant find a way to read the value in the string table that this index represent. I program in C. thanx a lot folks! (3 Replies)
Discussion started by: nicos
3 Replies

5. UNIX for Dummies Questions & Answers

Help with editing string elements

Hi All I have a question. I would like to edit some string characters by replacing with characters of choice located in another file. For example in sample file>S5_SK1.chr01 NNNNNNNNNNNNNNNNNNNCAGCATGCAATAAGGTGACATAGATATACCCACACACCACACCCTAACACTAACCCTAATCTAACCCTGGCCAACCTGTTT... (9 Replies)
Discussion started by: pawannoel
9 Replies

6. Shell Programming and Scripting

Editing part of the string

Hi guys got a problem here hope u all can help me. I learn that sed can actually edit a string but you need to know the old attribute to change to new 1. Example: sed "s/$title:$author/$title:$Nauthor/g" "Harry Potter - The Half Blood Prince:J.K Rowling:40.30:10:50" Each delimiter : represent... (4 Replies)
Discussion started by: GQiang
4 Replies

7. Shell Programming and Scripting

Need help regarding String editing

Hi Geeks I am working on trimming the logs and extracting the XMLs from it. I am facing one problem here. My XML String is ending with ...........Request></Body></Envelope>S/R sometimes there is more then just S/R in the end. I want to delete anything comes after </Envelope>... (3 Replies)
Discussion started by: santy00110011
3 Replies

8. Shell Programming and Scripting

Editing in vi - adding words to a line

i have lines in a file similar to this: results=$(echo Total: ${res} | command | command) now I need to add text before the word "results", but i dont know how to do it. here's what i tried: %s~results=.*echo Total:.* ${7}~PROCESS \; results=.*echo Total:.* ${7}~g the problem is,... (1 Reply)
Discussion started by: SkySmart
1 Replies
URI::URL(3pm)						User Contributed Perl Documentation					     URI::URL(3pm)

NAME
URI::URL - Uniform Resource Locators SYNOPSIS
$u1 = URI::URL->new($str, $base); $u2 = $u1->abs; DESCRIPTION
This module is provided for backwards compatibility with modules that depend on the interface provided by the "URI::URL" class that used to be distributed with the libwww-perl library. The following differences exist compared to the "URI" class interface: o The URI::URL module exports the url() function as an alternate constructor interface. o The constructor takes an optional $base argument. The "URI::URL" class is a subclass of "URI::WithBase". o The URI::URL->newlocal class method is the same as URI::file->new_abs. o URI::URL::strict(1) o $url->print_on method o $url->crack method o $url->full_path: same as ($uri->abs_path || "/") o $url->netloc: same as $uri->authority o $url->epath, $url->equery: same as $uri->path, $uri->query o $url->path and $url->query pass unescaped strings. o $url->path_components: same as $uri->path_segments (if you don't consider path segment parameters) o $url->params and $url->eparams methods o $url->base method. See URI::WithBase. o $url->abs and $url->rel have an optional $base argument. See URI::WithBase. o $url->frag: same as $uri->fragment o $url->keywords: same as $uri->query_keywords o $url->localpath and friends map to $uri->file. o $url->address and $url->encoded822addr: same as $uri->to for mailto URI o $url->groupart method for news URI o $url->article: same as $uri->message SEE ALSO
URI, URI::WithBase COPYRIGHT
Copyright 1998-2000 Gisle Aas. perl v5.14.2 2012-02-11 URI::URL(3pm)
All times are GMT -4. The time now is 04:22 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy