Date: Mon, 08 Jan 2001 00:41:23 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: lauras AT softhome DOT net
Message-Id: <6480-Mon08Jan2001004123+0200-eliz@is.elta.co.il>
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CC: djgpp-workers AT delorie DOT com, rich AT phekda DOT freeserve DOT co DOT uk
In-reply-to: <20010107225557.A210@lauras.lt>
Subject: Re: Bug in lstat() - wrong arguments to FSEXT
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> From: lauras AT softhome DOT net
> Date: Sun, 7 Jan 2001 22:55:57 +0200
> 
> On Sun, Jan 07, 2001 at 07:44:51PM +0200, Eli Zaretskii wrote:
> >      if (!__solve_dir_symlinks(path, real_path))
> >        return -1;
>  
> >    static int try_fsext (int *ret, const char *path, struct stat *statbuf)
> >    {
> >      return __FSEXT_call_open_handlers (__FSEXT_stat, ret, &path);
> >    }
>  
> Why are you passing statbuf arg here? Where it is used? Am I
> missing something?

Yes, you are missing the fact that the stat hook needs the struct stat
buffer as well, to fill it with data.

The way it works is that the hook gets a pointer to its first argument
on the stack, and then it walks the stack with va_arg to get the rest.
The same is done in the open hook: it only gets the pointer to the
first argument, but it also needs the open mode.