Control block fields applicable for SHOWCB

The field names shown in the first column of Table 1 are the values that can be supplied for the FIELDS operand of the SHOWCB macroinstruction. The lengths shown in the second column are the number of bytes of storage that must be reserved for each field; the sum of all the fields to be displayed by SHOWCB should be the value for the LENGTH operand.

Table 1. Control block fields that can be tested with SHOWCB
ACB fields
Field name	Length (bytes)	Description
APPLID	4	Address of application program's symbolic name
PASSWD	4	Address of password
EXLST	4	Address of exit list
ACBLEN	4	Length of ACB, in bytes (2 bytes, right-adjusted)
ERROR	4	OPEN and CLOSE completion code (1 byte, right-adjusted)
EXLST fields
Field name	Length (bytes)	Description
LERAD	4	Address of exit routine
SYNAD	4	Address of exit routine
DFASY	4	Address of exit routine
RESP	4	Address of exit routine
SCIP	4	Address of exit routine
TPEND	4	Address of exit routine
RELREQ	4	Address of exit routine
LOGON	4	Address of exit routine
LOSTERM	4	Address of exit routine
NSEXIT	4	Address of exit routine
EXLLEN	4	Length of exit list, in bytes (2 bytes, right-adjusted)
RPL fields
Field name	Length (bytes)	Description
ACB	4	Address of ACB
NIB	4	Address of NIB
ARG	4	CID of session
AREA	4	Address of I/O work area
AREALEN	4	Length of AREA work area, in bytes
RECLEN	4	Length of data in AREA work area, in bytes
AAREA	4	Address of alternate I/O work area
AAREALN	4	Length of AAREA work area, in bytes
ARECLEN	4	Length of data in AAREA work area, in bytes
ECB	4	ECB or address of ECB
EXIT	4	Address of RPL exit routine
RTNCD	4	Recovery action return code (1 byte, right-adjusted)
FDBK2	4	Specific error return code (1 byte, right-adjusted)
FDBK	4	Additional status information (1 byte, right-adjusted)
USER	4	The data originally placed in an NIB's USERFLD
REQ	4	Request type code (1 byte, right-adjusted)
RPLLEN	4	Length of RPL, in bytes (1 byte, right-adjusted)
SEQNO	4	Sequence number (2 bytes, right-adjusted)
SSENSMO	4	Outbound system-sense modifier value (1 byte, right-adjusted)
USENSEO	4	Outbound user-sense value (2 bytes, right-adjusted)
SSENSMI	4	Inbound system-sense modifier value (1 byte, right-adjusted)
USENSEI	4	Inbound user-sense value (2 bytes, right-adjusted)
IBSQVAL	4	Inbound sequence number for STSN request (2 bytes, right-adjusted)
OBSQVAL	4	Outbound sequence number for STSN request (2 bytes, right-adjusted)
SIGDATA	4	Information included with a signal request
NIB fields
Field name	Length (bytes)	Description
NAME	8	Symbolic name of logical unit
USERFLD	4	Arbitrary data associated with session
CID	4	Communication ID
NIBLEN	1	Length of NIB, in bytes
DEVCHAR	8	Device characteristics. See Control block formats and DSECTs.
EXLST	4	Address of exit list
RESPLIM	4	Maximum number of concurrent SEND (POST=RESP) macros
LOGMODE	8	Logon mode name
BNDAREA	4	Address of BIND area.
Note: Refer to the notes in Table 2, Table 4, and Table 5 for information about fields that are not supported by the SHOWCB macroinstruction.