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User forums => Using Code::Blocks => Topic started by: chedRvendetR on January 26, 2014, 03:16:02 am

Title: Can't find .out file
Post by: chedRvendetR on January 26, 2014, 03:16:02 am

So apparently .out files are formed when programs are compiled, but for some reason I can't find it! I need to read the .out files for my programs so I can continue reading my book that shows how to interpret them. Please help.

Many thanks    8)

Title: Re: Can't find .out file
Post by: ollydbg on January 26, 2014, 03:27:56 am

Quote from: chedRvendetR on January 26, 2014, 03:16:02 am

So apparently .out files are formed when programs are compiled, but for some reason I can't find it! I need to read the .out files for my programs so I can continue reading my book that shows how to interpret them. Please help.

Many thanks    8)

Please ask a good question, I mean you should state what you have done step by steps, and what the expect result, all should in details. Also, we need the OS, Compiler, C::B version information.

Without those information, how can we help you?

Title: Re: Can't find .out file
Post by: chedRvendetR on January 26, 2014, 05:03:57 am

So sorry! I've tried looking in the bin folders but have only found the 'file.exe' file and 'file.o' object file. I originally thought file.o was short for file.out until I searched up that it actually stood for .object.

The .out file should contain stuff that looks something like this:

reader@hacking:~/booksrc $ gcc firstprog.c
reader@hacking:~/booksrc $ 1s -1 a.out
-rwxr-xr-x 1 reader reader 6621 2007-09-06
22:16 a.out
reader@hacking:~/booksrc $ .a/a.out
Hello, world!
Hello, world!
Hello, world!
Hello, world!
Hello, world!
Hello, world!
Hello, world!
Hello, world!
Hello, world!
Hello, world!
reader@hacking:~/booksrc $

(This is an example of an .out file taken from 'Hacking: The Art of Exploitation')

OS = Windows Vista (32 bit)
Compiler = GCC
CB version = 10.05

Title: Re: Can't find .out file
Post by: BlueHazzard on January 26, 2014, 11:48:25 am

For me this explanation says nothing.... it seems that the out file is your executable file

what does the .out file should contain? Remember (and probably you should already know it, if you read a book like 'Hacking: The Art of Exploitation') that file extensions says nothing about a file (on unix).
And probably you should read a book for basic programming first... (compiling, linking, bash commands....)

[Edit:] and please update your c::b because 10.05 is really really really old..

greetings

Title: Re: Can't find .out file
Post by: chedRvendetR on January 27, 2014, 05:00:32 am

Yeah I don't have much experience with compilers and the like. I've had a problem with installing newer codeblocks versions but now I've successfully installed the latest one.

Here's a better example of what the .out file should contain:

reader@hacking:-booksrc $ objdump -D a.out |
grep -A20 main.:
08048374 <main>:
 8048374:          55                            push
%ebp
 8048375:          89 e5                         mov
%esp,%ebp
 8048377:          83 ec 08                     sub
$0x8,%esp
 804837a           83 e4 f0                      and
$0xfffffff0, %esp
 804837d:          b8 00 00 00 00             mov
$0x0,%eax
 8048382:          29 c4                         sub
%eax,%esp
 8048384:          c7 45 fc 00 00 00 00    movl
$0x0,0xfffffffc(%ebp)
 804838b:          83 7d fc 09                 cmpl
$0x9,0xfffffffc(%ebp)
 804838f:          7e 02                          jle

etc etc

I hope this example helps

Title: Re: Can't find .out file
Post by: Jenna on January 27, 2014, 06:24:37 am

a.out is the traditional format / default name for (binaries and) executables generated by a build-toolchain on unix when I started programming (long, long ago)

So instead of a.out you can just use your executables name or (if you use C::B projects) name the executable a.out (see Build targets"-tab in the projects properties).

See https://en.wikipedia.org/wiki/A.out (https://en.wikipedia.org/wiki/A.out).

Title: Re: Can't find .out file
Post by: BlueHazzard on January 27, 2014, 09:30:08 am

Good luck with your book. If you realy want to learn hacking beginn to read the documentation of your tools.
Search for gcc output parameters and read the documentation. Then start to think what os you are using, and what files does a main function contain...

Title: Re: Can't find .out file
Post by: BlueHazzard on January 27, 2014, 09:34:27 am

O come on jens. Don't make it to easy...

Title: Re: Can't find .out file
Post by: chedRvendetR on January 28, 2014, 03:12:55 am

Quote from: BlueHazzard on January 27, 2014, 09:30:08 am

Good luck with your book. If you realy want to learn hacking beginn to read the documentation of your tools.
Search for gcc output parameters and read the documentation. Then start to think what os you are using, and what files does a main function contain...

Thank you, and I will do that.

Quote from: jens on January 27, 2014, 06:24:37 am

a.out is the traditional format / default name for (binaries and) executables generated by a build-toolchain on unix when I started programming (long, long ago)

So instead of a.out you can just use your executables name or (if you use C::B projects) name the executable a.out (see Build targets"-tab in the projects properties).

See https://en.wikipedia.org/wiki/A.out (https://en.wikipedia.org/wiki/A.out).

Ah. Thank you very much  8)

That explains it but I'm still unable to read when I open 'a.out'