strdup_safe_mem
if ((keyf = strdup_safe_mem(keyfile)) == NULL) {
if ((keyf = strdup_safe_mem(keyfile)) == NULL) {
if ((keyf = strdup_safe_mem(keyfile)) == NULL) {
if ((opts->k = strdup_safe_mem(s)) == NULL) { \
if ((opts->opt = strdup_safe_mem(optarg)) == NULL) { \