execve replacement.

From: Abel Muņoz Alcaraz (abel@trymedia.com)
Date: Wed Oct 04 2000 - 09:15:37 EDT

  • Next message: Brian Gerst: "Re: execve replacement."

    Hi everybody,

            I have replaced the execve() kernel API with my own implementation but it
    doesn't work well.

                    extern void * sys_call_table[]

                    asmlinkage int (*system_execve)(const char *, const char **, const char
    **);

                    asmlinkage int my_execve(const char * filename, const char **argv, const
    char **envp)
                    {
                            return system_execve(filename, argv, envp);
                    }

                    int init_module()
                    {
                            system_execve = sys_call_table[__NR_execve];
                            sys_call_table[__NR_execve] = my_execve;
                    }

                    void cleanup_module()
                    {
                            sys_call_table[__NR_execve] = system_execve;
                    }

            Does anybody know where is the problem?

    Thanks in advance.

    -Abel.

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