idmap_namerule_cpy
idmap_namerule_cpy(&res->error_rule,
retcode = idmap_namerule_cpy(&udthandle->error_rule,
retcode = idmap_namerule_cpy(&udthandle->conflict_rule,
extern idmap_stat idmap_namerule_cpy(idmap_namerule *, idmap_namerule *);