vfs_getcwd_common
error = vfs_getcwd_common(vp, NULL,
error = vfs_getcwd_common(p->p_fd->fd_cdir, NULL, &bp, path, len/2,
error = vfs_getcwd_common(p->p_fd->fd_cdir, NULL, &bp, cwdbuf,
error = vfs_getcwd_common(lvp, rvp, NULL, NULL, MAXPATHLEN/2, 0, p);
int vfs_getcwd_common(struct vnode *, struct vnode *, char **, char *, int,