void free_tokens(char **tokens, size_t ntokens)
int get_tokens(const char *str, char **tokens, size_t num_tokens, const char *delimiterset)
bool is_option(const char *option_name, char *option)
char * get_option_malloc(const char *option_name, char **argv, int *i, int argc, bool gc)
void cmdline_option_values_free(void)
const char * option_name(const struct option *poption)