[Libguestfs] Fuzzing Questions

[habib dan aouta]

So I installed Libnbd which worked fined and then I was trying to run  Libnbd-fuzz-wrapper.c and with afl using :
afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -M fuzz01 \./fuzzing/libnbd-fuzz-wrapper @@

 when I try that command it gives me an error saying Libnbd-fuzz-wrapper.c is not an EFL  binary.  Then I tried to compile Libnbd-fuzz-wrapper.c first into an executable file and then I get the following error:
libnbd-fuzz-wrapper.c:130:3: warning: implicit declaration of function 'nbd_connect_socket' [-Wimplicit-function-declaration]
   nbd_connect_socket (nbd, sock);

I also added the #include<libnbd.h> into the Libnbd-fuzz-wrapper.c but still getting the same error. 

Finally I ran this command : ld -lnbd —verbose and I found out libnbd library is missing
attempt to open //usr/local/lib/x86_64-linux-gnu/libnbd.so failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libnbd.a failed
attempt to open //lib/x86_64-linux-gnu/libnbd.so failed
attempt to open //lib/x86_64-linux-gnu/libnbd.a failed
attempt to open //usr/lib/x86_64-linux-gnu/libnbd.so failed
attempt to open //usr/lib/x86_64-linux-gnu/libnbd.a failed
attempt to open //usr/local/lib64/libnbd.so failed
attempt to open //usr/local/lib64/libnbd.a failed
attempt to open //lib64/libnbd.so failed
attempt to open //lib64/libnbd.a failed
attempt to open //usr/lib64/libnbd.so failed
attempt to open //usr/lib64/libnbd.a failed
attempt to open //usr/local/lib/libnbd.so failed
attempt to open //usr/local/lib/libnbd.a failed
attempt to open //lib/libnbd.so failed
attempt to open //lib/libnbd.a failed
attempt to open //usr/lib/libnbd.so failed
attempt to open //usr/lib/libnbd.a failed
attempt to open //usr/x86_64-linux-gnu/lib64/libnbd.so failed
attempt to open //usr/x86_64-linux-gnu/lib64/libnbd.a failed
attempt to open //usr/x86_64-linux-gnu/lib/libnbd.so failed
attempt to open //usr/x86_64-linux-gnu/lib/libnbd.a failed
ld: cannot find -lnbd

> On Mar 18, 2020, at 1:56 PM, Richard W.M. Jones <rjones at redhat.com> wrote:
> 
> On Wed, Mar 18, 2020 at 01:46:14PM -0400, habib dan aouta wrote:
>> Hello Richard,
>> 
>> Hope you are doing well. My name is Habib and I am current student
>> at the University of North Carolina at Charlotte(U.S). I am
>> currently following your Libnbd client fuzzing tutorial from the
>> Wordpress articles
> 
> [https://rwmj.wordpress.com/2019/10/09/using-american-fuzzy-lop-on-network-clients/#content]
> 
>> and I am having issues compiling the
>> Libnbd-wrapper.c file. After some research I am missing the
>> Libnbd.so library file that I cannot seems to find anywhere. It will
>> be nice if you can provide some help. Thank you for your time and
>> consideration.
> 
> Not much to go on.  What did you try?  What error did you see?
> 
> Rich.
> 
> -- 
> Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
> virt-p2v converts physical machines to virtual machines.  Boot with a
> live CD or over the network (PXE) and turn machines into KVM guests.
> http://libguestfs.org/virt-v2v
> 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/libguestfs/attachments/20200318/9db6579e/attachment.htm>