Bug#897335: libc0.1-dev: Dev package exposes extattr_set_fd, extattr_get_fd, etc. system calls
Control: retitle -1 extattr prototypes declared in kernel headers sys/extattr.h but not implemented by libc0.1
Control: reassign -1 libc0.1,kfreebsd-kernel-headers
On Tue, May 01, 2018 at 03:53:03PM +0200, Hilmar Preuße wrote:
> Package: libc0.1-dev
> Version: 2.27-3
> Severity: normal
>
> Dear Maintainer,
>
> I hope this is the right package to report on.
>
> I noticed that proftp v1.3.6 FTBFS on kfreebsd. James Clarke told me in
> bug #897168 that libc0.1-dev exposes some system calls in header files,
> which are not implement in any lib, hence the link stage fails.
>
> My impression is that functions, which do not exist should not be visible
> in any header files. Consider to fix the header files.
To clarify, kfreebsd-kernel-headers provides sys/extattr.h, which
declare the BSD-ish extended attributes prototypes, but for which there
is no corresponding implementation in libc0.1, not even stubs. Moreover,
libc0.1-dev provides sys/xattr.h with the Linux-ish prototypes, but
those are merely stubs in libc0.1 returning -1 with errno set to ENOSYS.
It probably makes sense to use the BSD-ish ones given they are a
slightly different interface and are OS-specific APIs, in which case
libc0.1 should gain implementations for them, though alternatively the
Linux-ish ones could be used and sys/extattr.h dropped for (non-libc)
userspace.
James
Reply to: