59 int mgetm ( MESG * md, int type, ... )  in mgetm()  argument
61 int mgetm (md, type, va_alist)  in mgetm()
62     MESG	*md;  in mgetm()
77     needsize = mpeek(md);
93     if (mread(md, MBG, MBGSize) < 0)
104 int mputm ( MESG * md, int type, ... )  in mputm()  argument
106 int mputm (md, type, va_alist)  in mputm()
107     MESG	*md;  in mputm()
150     return(mwrite(md, MBP));
168 short mpeek ( MESG * md )  in mpeek()  argument
170 short mpeek (md)  in mpeek()
171     MESG	*md;  in mpeek()
176     if (md->type == MD_USR_FIFO || md->type == MD_SYS_FIFO)
177 	return(peek3_2(md->readfd) - EXCESS_3_2_LEN);
179     if (ioctl(md->readfd, I_NREAD, &size))