Re: glibc question?

[Carey Evans <c.evans@clear.net.nz>]

Michael Meskes <meskes@debian.org> writes:

> Also I wonder how do you implement function overloading with glibc 2.1? I
> have a library that implements a new unlink() call. No problem LD_PRELOADing
> this. But how do I access the real unlink() call with this setup?

Have a look at the fakeroot package.  It looks like it basically does
it by saying something like:

    int retval, (*fptr)(const char *);
    fptr = (int (*)(const char *)) dlsym(RTLD_NEXT, "unlink");
    retval = (*fptr)("filename");

-- 
	 Carey Evans  http://home.clear.net.nz/pages/c.evans/

"Try explaining a syn-ack-fin-rst scan to a dialup provider abuse drone. You
can almost hear the belt slip off the brain drive shaft."   - Strange in asr