HP UX 11i v1 I/O Cards manual Parameter and from the same TTY, the same ZLU name will be

	ZCOM C I/F Library Routines
	MAKEZLUNAME (3X)
	If two different programs call this routine with the same name
WARNING
	parameter and from the same TTY, the same ZLU name will be
	returned.This implies that if multiple copies of a program are
	run from the same TTY, they will all get the same ZLU name. If
	they are run from different terminals, different ZLU names will
	be returned.
	For multi-threaded application, since all threads will be from the
	same TTY, if the threads use the same name parameter, the same
	ZLU name will be returned.
	This routine uses an internal static buffer for temporary storage
	of the returned name. The buffer is overwritten by each call.
EXAMPLE	#include <zcom/zcomsys.h>
	#include <zcom/zcomcall.h>
	char	*zluname; /* Returned ZLU name string */
	char	name[8];
	zluname = makezluname (name);
FILES
	/opt/acc/include/zcom/zcomsys.h		ZCOM subsystem general include file,
			containing data types, data structures,
			constants, error codes, masks, etc. Note
			that this must be the first include file before
			any other ZCOM include files.
	/opt/acc/include/zcom/zcomcall.h		ZCOM routine function prototypes
			(requires ANSI C compilation).

SEE ALSO

zopen(3x), ttyname(3c)

152 Chapter 4