htos
char * htos ( char *, unsigned short );
(void) htos(buf + size, t_short);
(void) htos(buf + MESG_SIZE, size);
(void) htos(buf + MESG_TYPE, type);
(void) htos(buf + size, t_short);
(void) htos(buf + size, t_short);
char * htos (s, h)
(void) htos(msgbuf + MESG_SIZE, size);
(void) htos(tmpbuf + HEAD_SIZE, size + EXCESS_3_2_LEN);
(void)htos (buf + TAIL_CHKSUM(size), chksum);