62 int mgetm ( MESG * md, int type, ... )  in mgetm()  argument
64 int mgetm (md, type, va_alist)  in mgetm()
65     MESG	*md;  in mgetm()
80     needsize = mpeek(md);
96     if (mread(md, MBG, MBGSize) < 0)
107 int mputm ( MESG * md, int type, ... )  in mputm()  argument
109 int mputm (md, type, va_alist)  in mputm()
110     MESG	*md;  in mputm()
153     return(mwrite(md, MBP));
171 short mpeek ( MESG * md )  in mpeek()  argument
173 short mpeek (md)  in mpeek()
174     MESG	*md;  in mpeek()
179     if (md->type == MD_USR_FIFO || md->type == MD_SYS_FIFO)
180 	return(peek3_2(md->readfd) - EXCESS_3_2_LEN);
182     if (ioctl(md->readfd, I_NREAD, &size))