extattr problems?

[Tim Kientzle]

FreeBSD 6.3:

fd = open("test", O_WRONLY | O_CREAT | O_EXCL, 0777);
n = extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, "testattr", "1234", 4);

After this, fd=3, n is non-zero, errno = 9 (EBADF)

Huh?  I would have expected EOPNOTSUPP if
extended attributes weren't supported on this
filesystem.  The file descriptor is clearly
valid.

Tim