HP Advanced Communications Controllers (ACC) manual Pointer to a buffer into which the Zcom

	ZCOM C I/F Library Routines
	PTFIND (3X)
PARAMETERS
zap	ZCOM address of the terminal. It can be any
	terminal ZLU within the group to be searched.
	If using method 1, only its MUX number is
	used (its port number, hence its group, may be
	different from the target terminal).
zskeyp	ptfind search key. The search key is set up by
	the caller program before this routine is called.
	It consists of a search mode, which indicates
	the method to be used and the data (mode
	dependent) used in searching. If bit
	ZCOM_PTFIND_NAVL (0x8000) is set, ptfind
	searches the non-available terminals as well.
	When using this function in a 32-bit program
	that is running on a 64-bit system, you must
	be especially careful to zero out the zskeyp
	structure before using it. Otherwise, your
	application may experience ZCOM error -84
	(ZEBPTR), “User buffer access error”.
zptt (Return	A pointer to a buffer into which the ZCOM
Param)	physical terminal table data will be placed.
	Note that if the physical terminal is not found
	(i.e., ierr != 0), then no data is moved into zptt.
len	Length in bytes of zptt buffer.

RETURN VALUE	Routine ptfind returns 0 if successful. Otherwise, if the physical terminal
	is not found, ZENOTM (-75)is returned.
EXAMPLE	#include	<zcom/zcomsys.h>
	#include	<zcom/zcomcall.h>
	int32	ierr;
	zaddr_type	zaddr;
	zskey_type	zskey;
	zptt_type	zptt;
	int32	len;

if (ierr = ptfind (&zaddr, &zskey, &zptt, len)) { /* error return code */

}

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