HP Advanced Communications Controllers (ACC) Is terminated by an entry with a zlu value of 0

ZCOM C I/F Library Routines

ZGET_SHRCVR_LIST (3X)

fork unsafe	It cannot be called by a child process after
	fork(2) but before exec(2).
	See the NOTES section below for more
	information on using this routine in a
	multi-threaded application.

PARAMETERS

zap	ZCOM address pointer. The uses of node, zlu and zcs
	depend on the specified mode. But in general this is used
	to select the specific table entry from which you want the
	shared receivers list.
mode	Specifies which shared receiver list to return.
	0 - Logical Terminal Table Shared Receivers (zap->zluis
	the ZLU of a terminal entry in the LTT, node and zcs are
	not used)
	1 - Physical Terminal Table Shared Receivers for “normal”
	data and Status messages (zap->zluis the ZLU of an entry
	in the PTT).
	2 - Physical Terminal Table Shared Receivers for “control”
	messages (zap->zluis the ZLU of a terminal in the PTT).
	3 - DSC Event Receivers (The zap parameter is not used)
	4 - Node Status Event Receivers (zap->nodeis the required
	node number, zcs and zlu are not used)
mlen	Maximum number of receivers to be returned in the zrcvrs
	array. To get the full list of receivers, this should be
	ZcMAX_SHARED_RCVRS+1.
zrcvrs	This is a returned array of all shared receivers currently
(Return	configured. Each entry in the array is a single receiver for
Param)	the type of data specified by the mode parameter. The list
	is terminated by an entry with a zlu value of 0. The
	maximum number of receivers in each type of shared
	receiver list is set to ZcMAX_SHARED_RCVRS (currently,
	64). Hence, to get the full list of receivers, this array should
	have ZcMAX_SHARED_RCVRS+1 entries.

234 Chapter 4