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I don't understand very well this peace of code you wrote:

if(pid | pid1 == 0)//process A

This works as if ( pid | (pid1 == 0) ) and I don't understand really well what is the idea, could...

What OS/architecture are you using? I tried using Linux and although the code doesn't compile at first, it works fine and I did not receive a sigsev.

I remember once I had the same problem but it...

The code seems to be good, but unfortunately I don't know to much about HP-UX, but you could try running the threads one by one in order to narrow down the problem.

This code works fine in a i386...

I think you should call to sock_recvmsg() several times in a loop.

Why do you want to do this in kernel space instead of user space??

ivan.

Hi raidzero,

I'm analyzing the tcpkill.c source code and I will try to make some changes to reset only a specific tcp connection. I will let you know if it works as soon as possible.

bye.

raidzero,

What exactly do you want to know?. tcpkill.c use libpcap to filter some packages directed to the socket that you want to close.

You have to compile tcpkill.c and run it up as a...

I know that you have figured out your problem, but just for fun, you could take a look to this POSIX and OS/2 are not supported in Windows XP or in Windows Server 2003...

I think this could work. I extracted the comment from open function man page.

#include <stdio.h>
#include <sys/stat.h>
#include <fcntl.h>

int main(void)
{
int fd;

/* ...

Hi,

Maybe this is that you want. I will try to do an example.
By the time, try reading this http://www.gnu.org/software/libtool/manual/libc/File-Locks.htm...

Hi All,

I was thinking on take the linux programming certification given by Brainbench and I was wondering if somebody know something about it or has taken it.

I have sent them...

Somebody know how I can use iptables and ebtables in order to change the IP address of the package according to its MAC.


thanks.

Thanks Lazydog,

I executed the following command, but unfortunately it did not work. :-(

iptables -A -m mac --mac-source 00:80:42:1D:DA:0F -j SNAT --to-source 172.16.1.220

iptables:...

Hi All,

Is there any possibility to change the IP address of a package according to its MAC address. It would be a sort of L2 NAT. (i.e. If the MAC address is 00:1A:A0:1E:XX:XX so the dir IP will...

Thanks for the website link. Now I will try to solve my problem.

Thanks again.

Hi All,

I need to develop a kernel module which changes the IP address of a package according to its mac address. It would be a sort of L2 Nat.

Somebody know if I can do this using...

Hi All,

I'm trying to configure a vlan interface, to do this I'm using the following command "vconfig add eth0 20". I have my interface up and running, but when I test it using "ping -I eth0.20...

Thanks for your reply sysgate.

I have to deal with arp frames because I have a wired LAN configuration. I have a few devices that has the same IP address and it is impossible to be changed. All...

Hi All,

Is there any way to modify or filter the ARP frames??

thanks!

Hi All,

I have a problem with a weird configuration that I need and a few possible solutions came up, but I do not know how to implement none of them.

Let me explain the situation:

I have...

Hi All,

We are fixing an application, and to do this we've used GDB.
We have a coredump file, therefore we can print a backtrace and watch the variables content at the moment of the crash.
...

Hi,

I'm sorry, I forgot to tell you which OS I'm using.
I'm working on Linux, its kernel version is 2.4.26.


Thanks!

Hi,

I'm working in a MIPS processor and, since the function backtrace() is not implemented for this architecture, I would like to know if there is another way to do a stack backtrace in this...

I'm sorry, I have to improve my C programming.
If there is someone who still thinking about this exercise, here is again, but now indented.

void duff(register char *to, register char *from,...

Hi All,

Could anybody please explain to me, why this piece of code compiles.


void duff(register char *to, register char *from, register int count)
{
register int n=(count+7)/8;
...

Since I was making a test using only a main function I couldn't realize the advantages. Now, I've made a test using several function calls and I can see the difference of using a core dump file.
...