Re: intercepting system calls works on tiger(10.4.5) but not on panther(10.3.9)
Re: intercepting system calls works on tiger(10.4.5) but not on panther(10.3.9)
- Subject: Re: intercepting system calls works on tiger(10.4.5) but not on panther(10.3.9)
- From: "Peter O'Gorman" <email@hidden>
- Date: Thu, 18 May 2006 22:05:45 +0900
On Wed, 2006-05-17 at 23:19 -0600, Puthali H.B wrote:
> ok, i'm not very much clear on this, so please pardon, if its very
> obvious.
>
> Actually I don't use RTLD_NEXT, but rather get a handle for
> libSystem.dylib using dlopen and use that handle in dlsym. And if I use
> the resulting function handle from dlsym, shouldn't it call the function
> from libSystem, rather than my own? as it does in tiger?
Nope, you're forcing flat namespace, so it will still find the first
one. I know it's broken, pretty sure that it is documented as broken in
the dlopen manpage on panther.
>
> and will try again with syscall, hopefully it will work.
>
Darn, looks like a bug in dyld, and one that's not likely to ever be
fixed. I see the same behavior as you when I continue on and try to
login to the ftp server. So, I booted my 10.2 system and tried there, it
works on 10.2, and I'd bet that it works on 10.3.x with x < 4.
Long story short, you're out of luck on panther :(
Peter
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