kill(0,-9) don't kill the process

umen · #1 (**permalink**) 06-19-2007

Hi all
i have simple c program , when i wish to kill the app
im using kill(0,-9) , but it seams this command don't do any thing and the program.
just ignore it .
what im doing wrong here ?
im using HP-UX ia64

Thanks

ilko_partizan · #2 (**permalink**) 06-19-2007

You can kill a program with command:
kill -9 <PID of programme>
If you can not necessary permission about programme, You won't kill a programme.

Best regards,
Iliyan Varshilov

umen · #3 (**permalink**) 06-19-2007

i need to kill from c program

ilko_partizan · #4 (**permalink**) 06-19-2007

If you need killing a process from C programme, You will read about system call 'kill'.

http://www.freebsd.org/cgi/man.cgi?q...SE&format=html

Best regards,
Iliyan Varshilov

umen · #5 (**permalink**) 06-19-2007

hi
i have read it also read this :
http://www.cs.cf.ac.uk/Dave/C/node24...00000000000000
that helped me understand this is my code:

Code:

int k=kill(getpid(),-9);
int r=raise(-9);

the return codes from k and r is -1
that is it proform the kill command but failled , the question is why ?
the getpid() also returns the right pid .
so what can i do next ?
how can i catch errno msg?
what else i can do to understand what is wrong ?

thanks

ilko_partizan · #6 (**permalink**) 06-19-2007

You can get a error in string format from your programme with function 'strerror'.
This is part of code you needed:

Code:

#include <errno.h>
#include <stdio.h>

fprintf(stderr, "Error: %s\n", strerror(errno));

This man page describes 'errno'.
http://www.freebsd.org/cgi/man.cgi?q...SE&format=html

This man page describes 'strerror'.
http://www.freebsd.org/cgi/man.cgi?q...SE&format=html

Best regards,
Iliyan Varshilov

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