smb_node_getshrpath
rc = smb_node_getshrpath(of->f_node, of->f_tree,
rc = smb_node_getshrpath(node, tree, path, MAXPATHLEN);
rc = smb_node_getshrpath(node, tree, buf, buflen);
rc = smb_node_getshrpath(sinfo->si_node->n_dnode,
int smb_node_getshrpath(smb_node_t *, smb_tree_t *, char *, uint32_t);