Re: [Bug-gnulib] xreadlink.c patch

[Bruno Haible]

Paul Eggert wrote:
> >   1) bugfix. readlink() on AIX 4.3 returns a
> >      negative link_length and sets errno == ERANGE
> >      when the length of the link is greater than
> >      buf_size.
>
> Shouldn't this incompatibility be fixed in readlink.c rather than
> xreadlink?

Yes, I agree. Furthermore, on an older version of AIX the following
behaviour was seen on NFS mounted directories: after lstat(), the st_size
field did not contain the exact link size: the readlink() call returns
a different value. I don't remember whether the return value was larger
or smaller than st_size. I'll try to reproduce that...

Bruno