Hi all,
I got a problem on running a binary file on linux. I have tried to run it as root account.
This is a network emulator.

here is my error message:
./network
error msg: "bash: ./network: cannot execute binary file"

OR
strace -e trace=file ./network
error msg: strace: exec: Exec format error
execve("./network", ["./network"], [/* 66 vars */]) = 0

Can anyone help me to run this binary file on the linux?

Thanks your help!!

Alston

You set the permissions to be an executable file??

chmod +x network

If it wasn't set +x, a permission denied error would be returned...and at any rate, strace doesn't require the file to be +x to run on it.

That plus the phrase that strace gave the error "Exec format error" makes me think that either the file isn't in ELF or a.out format or it somehow got corrupted along the line.

I did set the chmod a+x for that file.
Actually, this file is working on school enviroment which is solaris, but it got the error message on the linux system.

That would most likely be your problem then.. and giving this type of information before would have been nice, really, it would have.

Edit and change your script or executable to run on Linux.. that will solve your problems. Linux isn't Solaris..

is that mean there is no way to run this binary file if i don't have the source file?

Well, there are emulators (I believe...check freshmeat), but Solaris uses a different binary format than Linux.

If its an executable that uses libs and what not that are also compatible or available with Linux, you can install the dependencies or the such to use on Linux.

What exactly is this binary file? Any particular program to be exact? If it is a popular type program, there could be a port of it already available on Linux.

More details gets better responses.

http://www.act-cs.com/download/network

about is the link to download the binary file. Actually, i want to provide this link before, but i cannot post a URL link before 5 posted. And i don't know how to describe it. Sorry for my lack of explanatioan

the link should be: http://www.actsci-cs.com/download/network

sorry for typing error

here is the detail for this file

Network Emulator Program (network):
You will be given the executable code for the network emulator. To run it, you need to supply the following parameters in the given order:
" emulator's receiving UDP numbers in the forward (sender) direction,
" receiver s network address and receiving UDP port number,
" emulator's receiving UDP numbers in the backward (receiver) direction,
" sender s network address and receiving UDP port number, " maximum delay of the link in units of millisecond,
" packet discard probability, " verbose 1/0 for Yes/No (Set to 1, the network emulator will output its internal processing).
When the link emulator receives a packet from the sender, it will discard it with the specified probability; otherwise, it stores the packet in its buffer. With a random amount of delay (less than the specified maximum delay), it then forward the packet to the receiver.

network 9991 host1 9994 9993 host3 9992 1 0.2 0

To tell you the truth, that link you gave is basically just a directory index and then the file download. It doesn't provide anything beyond that.

Being an executable and or binary file, I would presume you will need to contact the creator or developer of this file to find out if you can get it to work on Linux.

Regards.