If you want to use the host name extension function when creating a CUP in COBOL, use the following programs. For details about the data area length when the host name extension function is used, see the description of the data area where the UAP of each program sets values in 6. Request Statements Available for TP1/Client (COBOL Language).

Table 2-11 COBOL-UAP creation program that is called by the CALL statement used with the host name extension function

Function		COBOL-UAP creation program called by the CALL statement
User authentication	Requesting authentication of the client user	CBLDCCLS('EXCLTIN ')
		CBLDCCLT('EXCLTIN ')
Permanent connection	Specifying the destination of a request to establish a permanent connection	CBLDCCLS('STRAPHST')#
		CBLDCCLT('STRAPHST')#
	Acquiring the destination of a request to establish a permanent connection	CBLDCCLS('GTRAPHST')#
		CBLDCCLT('GTRAPHST')#
TCP/IP communication function	Sending messages	CBLDCCLS('EXSEND ')
		CBLDCCLT('EXSEND ')
Facility for receiving one-way messages from the server	Receiving one-way messages	CBLDCCLS('EXNACPT ')
		CBLDCCLT('EXNACPT ')
	Canceling the one-way message wait state	CBLDCCLS('EXNCANCL')
		CBLDCCLT('EXNCANCL')
	Receiving one-way messages	CBLDCCLS('EXNCACPT')
		CBLDCCLT('EXNCACPT')

#

When you specify 00000008 for DCCLTOPTION in the client environment definition, you must increase the size of the data area.