Date: Sun, 16 Nov 2003 07:53:30 -0800 (PST) From: Kai Zhu <zkzklj@yahoo.com> To: freebsd-hackers@freebsd.org Subject: Questions on intercepting execve syscall Message-ID: <20031116155330.42894.qmail@web21409.mail.yahoo.com>
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Hello all,
I am writing a KLD module to intercept execve() as following:
static int my_execve(struct thread *td, struct execve_args *uap)
{
return(execve(td,uap));
}
As you can see, I first just want to make sure that my_execve won't affect the original execve, then I will add some new logic in my_execve before returning to execve().
After kldload with this module, I always get "Bad address" error if I use any command like ls, cd, etc.
Does anyone know where my problem is? Thanks!
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