size_t get_hostname_list(struct hstruct **hlist, size_t nhosts, char *name);
size_t free_hostname_list(struct hstruct **hlist, size_t nhosts);
size_t get_hostname_list(struct hstruct **hlist, size_t nhosts, char *name);
size_t free_hostname_list(struct hstruct **hlist, size_t nhosts);