[parisc-linux] getdents

[Kevin Vajk]

On Wed, 3 Nov 1999, Matthew Wilcox wrote:

> struct hpux_dirent {
> 	ino_t	d_ino;
> 	short	d_reclen;
> 	short	d_namlen;
> 	char	d_name[1];
> };

Shouldn't that be d_name[256]?

Anyhow, here's how I think it works on HP-UX (somebody please correct
me if I'm wrong!):

There is a struct dirent, which applications know about, and then
there is a struct __dirent32 and a struct __dirent64, depending on
whether this is a 32- or 64-bit process.  sizeof(ino_t) is the
only difference between the 32- and 64-bit structures.
Let's just call this struct __dirent.

Now, this struct __dirent is just struct dirent, with some additional
stuff at the front.  The trouble is, I don't know what's tacked onto
the front of it, yet...  I'm looking.  If anybody knows, please
tell me!!!

Anyhow, here's the prototype:
    int getdents(int fd, char *buf, unsigned int count);
It fills in buf with struct __dirent entries.  libc then turns each
struct __dirent into a struct dirent for user consumption by just
returning &(__dirent->d_ino).

I realize this isn't much use, without a concrete definition of
the extra field(s) of struct __dirent, but I'll get one tomorrow,
I expect.  (I'm probably just looking in the wrong place or something.)

- Kevin Vajk
  <kvajk@ricochet.net>