IONCOM

## Common block for ionlb.

    integer chan			# channel for i/o
    integer mxchan			# channel for broadcast mailbox
    integer*2 mxiosb(4)			# status block for broadcast mailbox
    integer oldchar(3), newchar(3)	# terminal characteristics
    integer ievfl			# input event flag
    integer cevfl			# iochav() event flag
    integer oevfl			# output event flag
    integer mevfl			# mailbox event flag
    integer*4 desblk(4)			# exit handler descriptor block
    logical autobroad			# echo broadcasts immediately in or not
    logical nobroadcast			# don't do allow any kind of broadcasts
    character obuf(MAXOBUFSIZE)		# output buffer
    integer obufsize			# actual output buffer size
    integer obufp			# output buffer pointer
    character mxbuf(MXSIZE)		# broadcast mailbox buffer

    common /iocomn/ chan, mxchan, mxiosb, oldchar, newchar, ievfl, cevfl,
	oevfl, mevfl, desblk, autobroad, nobroadcast, obuf, obufsize,
	obufp, mxbuf