int dgram_bind(dgram_t *dgram, sa_family_t family, in_port_t *portp);
void dgram_socket(dgram_t *dgram, int sock);
int dgram_bind(dgram_t *dgram, sa_family_t family, in_port_t *portp);
void dgram_socket(dgram_t *dgram, int sock);
void dgram_zero(dgram_t *dgram);
int dgram_cat(dgram_t *dgram, const char *fmt, ...)
void dgram_zero(dgram_t *dgram);
int dgram_cat(dgram_t *dgram, const char *fmt, ...)