HP OpenVMS Systems Documentation

OpenVMS Record Management Services Reference Manual

Table RMS-50 lists the FAB amd XAB control block fields written as output by the Open service.

**Table RMS-50 Open Service FAB and XAB Output Fields**
Field Name	Option or XAB Type	Description
FAB$L_ALQ		Allocation quantity: contains the highest numbered block allocated to the file.
FAB$B_BKS		Bucket size (does not apply to sequential files).
FAB$W_BLS		Device block size (applies only to sequential files).
FAB$W_DEQ		Default file extension quantity.
FAB$L_DEV		Device characteristics.
FAB$B_FAC		File access.
FAB$L_FOP		File-processing options.
	FAB$V_CBT	Contiguous best try: indicates that the file is allocated contiguously on a "best effort" basis.
	FAB$V_CTG	Contiguous: indicates that space for the file is allocated contiguously.
	FAB$V_RCK	Read-check: transfers are followed up by a read-compare operation.
	FAB$V_WCK	Write-check: transfers are followed up by a read-compare operation.
FAB$B_FSZ		Fixed-length control area size (applies only to VFC records).
FAB$W_GBC		Global buffer count.
FAB$W_IFI		Internal file identifier.
FAB$L_MRN		Maximum record number (for relative files only).
FAB$W_MRS		Maximum record size.
FAB$B_ORG		File organization.
FAB$B_RAT		Record attributes; used as output field except for process-permanent files with print file format.
FAB$B_RFM		Record format.
FAB$L_SDC		Spooling device characteristics.
FAB$B_SHR		File sharing.
FAB$L_STS		Completion status code (also returned in register 0).
FAB$L_STV		Status value (contains the I/O channel number if the operation is successful).
FAB$L_XAB		Next XAB address.
	XABALL	Allocation XAB; see Chapter 9.
	XABDAT	Date and time XAB; see Chapter 10.
	XABFHC	File header characteristics XAB; see Chapter 11.
	XABITM	Item list XAB; see Chapter 12.
	XABKEY	Key definition XAB; see Chapter 14.
	XABPRO	Protection XAB; see Chapter 15.
	XABRDT	Revision date and time XAB; see Chapter 16.
	XABSUM	Summary XAB; see Chapter 18.

Using the Name Block for Opening Files

Table RMS-51 and Table RMS-52 list the NAM block fields (further described in Chapter 5) used as input and output for the Open service (provided that the NAM block address field is specified in the FAB).

**Table RMS-51 Open Service NAM Input Fields**
Field Name	Option	Description
NAM$W_DID ¹		Directory identification (input only if the FAB$L_FOP field FAB$V_NAM option is set).
NAM$T_DVI ¹		Device identification (input only if the FAB$L_FOP field FAB$V_NAM option is set).
NAM$L_ESA		Expanded string area address.
NAM$B_ESS		Expanded string area size.
NAM$W_FID ¹		File identification (input only if the FAB$L_FOP field FAB$V_NAM option is set).
NAM$B_NOP		NAM block options.
	NAM$V_PWD	Password: indicates that a password contained in a DECnet for OpenVMS access control string, if present in a file specification, is to be left unaltered in the expanded and resultant strings (instead of being replaced by the word "password").
	NAM$V_NOCONCEAL	Do not conceal device name: indicates that when a concealed device logical name is present, the concealed device logical name is to be replaced by the actual physical device name in the resultant string.
	NAM$V_NO_SHORT_UPCASE ¹	Do not uppercase the directory and file specification in the NAM$L_ESA buffer.
NAM$L_RLF		Related file NAM or NAML block address.
NAM$B_RSL		Resultant string length.
NAM$L_RSA		Resultant string address.
NAM$L_FNB		File name status bits.
NAM$B_RSS		Resultant string area size.

¹This field or option is not supported for DECnet for OpenVMS operations.

**Table RMS-52 Open Service NAM Output Fields**
Field Name	Description
NAM$B_DEV	Size of file specification device string.
NAM$L_DEV	Address of file specification device string.
NAM$W_DID ¹	Directory identification.
NAM$B_DIR	Size of file specification directory string.
NAM$L_DIR	Address of file specification directory string.
NAM$T_DVI ¹	Device identification.
NAM$B_ESL	Expanded string length. If the NAM$L_ESA and NAM$B_ESS fields are nonzero, and if the FAB$L_FOP field FAB$V_NAM option is clear or the NAM$W_DID and NAM$W_FID fields are 0 on input, the expanded file specification string is copied to the buffer specified by the NAM$L_ESA field.
NAM$W_FID ¹	File identification.
NAM$W_FIRST_WILD_DIR ¹	The topmost directory level to contain a wildcard.
NAM$L_FNB	File name status bits.
NAM$W_LONG_DIR_LEVELS ¹	Total number of directories.
NAM$B_NAME	Size of file specification name string.
NAM$L_NAME	Address of file specification name string.
NAM$B_NODE	Size of file specification node string.
NAM$L_NODE	Address of file specification node string.
NAM$B_RSL	Resultant string length. If the NAM$L_RSA field and the NAM$B_RSS field are nonzero, and if the FAB$V_NAM bit is clear or the NAM$W_FID field is zero when you invoke the Open service, the resultant file specification is copied to the buffer specified by the NAM$L_RSA field.
NAM$B_TYPE	Size of file specification type string.
NAM$L_TYPE	Address of file specification type string.
NAM$B_VER	Size of file specification version string.
NAM$L_VER	Address of file specification version string.

¹This field is not supported for DECnet for OpenVMS operations.

Table RMS-53 lists the NAML block fields used as input for the Open service.

**Table RMS-53 Open Service NAML Input Fields (Alpha Only)**
Field Name	Option	Description
NAML$W_DID ¹		Directory identification (input only if the FAB$L_FOP field FAB$V_NAM option is set).
NAML$T_DVI ¹		Device identification (input only if the FAB$L_FOP field FAB$V_NAM option is set).
NAML$L_ESA		Expanded string area address.
NAML$B_ESS		Expanded string area size.
NAML$W_FID ¹		File identification (input only if the FAB$L_FOP field FAB$V_NAM option is set).
NAML$L_FILESYS_NAME ¹		File system name buffer address.
NAML$L_FILESYS_NAME_ALLOC ¹		File system name buffer size.
NAML$L_FNB		Related file NAM or NAML block file name status bits.
NAML$L_INPUT_FLAGS		Additional flags specified as input.
NAML$L_LONG_DEFNAME		Long default file specification string address (used if FAB$L_DNA contains -1).
NAML$L_LONG_DEFNAME_SIZE		Long default file specification string size.
NAML$L_LONG_EXPAND		Long expanded string area address.
NAML$L_LONG_EXPAND_ALLOC		Long expanded string area size.
NAML$L_LONG_FILENAME		Long file specification string address (used if FAB$L_FNA contains -1).
NAML$L_LONG_FILENAME_SIZE		Long file specification string size.
NAML$L_LONG_RESULT		Long resultant name string address.
NAML$L_LONG_RESULT_ALLOC		Long resultant string size.
NAML$B_NOP		NAM or NAML block options.
	NAM$V_PWD	Password: indicates that a password contained in a DECnet for OpenVMS access control string, if present in a file specification, is to be left unaltered in the expanded and resultant strings (instead of being replaced by the word "password").
	NAM$V_NOCONCEAL	Do not conceal device name: indicates that when a concealed device logical name is present, the concealed device logical name is to be replaced by the actual physical device name in the resultant string.
	NAM$V_NO_SHORT_UPCASE ¹	Do not uppercase the directory and file specification in the NAML$L_ESA buffer.
NAML$L_RLF		Related file NAM or NAML block address.
NAML$L_RSA		Resultant string address.
NAML$B_RSL		Resultant string length.
NAML$B_RSS		Resultant string area size.

¹This field or option is not supported for DECnet for OpenVMS operations.

Table RMS-54 lists the NAML block fields used as output for the Open service.

**Table RMS-54 Open Service NAML Output Fields**
Field Name	Description
NAML$B_DEV	Size of file specification device string.
NAML$L_DEV	Address of file specification device string.
NAML$W_DID ¹	Directory identification.
NAML$B_DIR	Size of file specification directory string.
NAML$L_DIR	Address of file specification directory string.
NAML$T_DVI ¹	Device identification.
NAML$B_ESL	Expanded string length. If the NAM$L_ESA and NAML$B_ESS fields are nonzero, and if the FAB$L_FOP field FAB$V_NAM option is clear or the NAML$W_DID and NAML$W_FID fields are 0 on input, the expanded file specification string is copied to the buffer specified by the NAML$L_ESA field.
NAML$W_FID ¹	File identification.
NAML$L_FILESYS_NAME_SIZE ¹	File system name length.
NAML$W_FIRST_WILD_DIR ¹	First wild directory.
NAML$L_FNB	File name status bits.
NAML$L_LONG_DEV	Long device string address.
NAML$L_LONG_DEV_SIZE	Long device string length.
NAML$L_LONG_DIR	Long directory string address.
NAML$L_LONG_DIR_SIZE	Long directory string length.
NAML$W_LONG_DIR_LEVELS ¹	Total number of directories.
NAML$L_LONG_EXPAND_SIZE	Long expanded string length.
NAML$L_LONG_NAME	Long file name string address.
NAML$L_LONG_NAME_SIZE	Long file name string length.
NAML$L_LONG_NODE	Long node name string address.
NAML$L_LONG_NODE_SIZE	Long node name string length.
NAML$L_LONG_RESULT_SIZE ¹	Long resultant string length.
NAML$L_LONG_TYPE	Long file type string length.
NAML$L_LONG_TYPE_SIZE	Long file type string address.
NAML$L_LONG_VER	Long file version string address.
NAML$L_LONG_VER_SIZE	Long file version string length.
NAML$B_NAME	Size of file specification name string.
NAML$L_NAME	Address of file specification name string.
NAML$B_NODE	Size of file specification node string.
NAML$L_NODE	Address of file specification node string.
NAML$L_OUTPUT_FLAGS	Additional status bits passed as output.
NAML$B_RSL	Resultant string length. If the NAML$L_RSA field and the NAML$B_RSS field are nonzero, and if the FAB$V_NAM bit is clear or the NAML$W_FID field is zero when you invoke the Open service, the resultant file specification is copied to the buffer specified by the NAML$L_RSA field.
NAML$B_TYPE	Size of file specification type string.
NAML$L_TYPE	Address of file specification type string.
NAML$B_VER	Size of file specification version string.
NAML$L_VER	Address of file specification version string.

¹This field is not supported for DECnet for OpenVMS operations.

Condition Values Returned

The following condition values can be returned. Use the Help Message utility to access online message descriptions. For more information about interpreting condition values, see Section 2.4.

RMS$_ACC	RMS$_ACS	RMS$_ACT
RMS$_AID	RMS$_ATR	RMS$_BLN
RMS$_BUG_DAP	RMS$_BUG_DDI	RMS$_CHN
RMS$_COD	RMS$_CRMP	RMS$_DEV
RMS$_DIR	RMS$_DME	RMS$_DNA
RMS$_DNF	RMS$_DNR	RMS$_DVI
RMS$_ENQ	RMS$_ENV	RMS$_ESA
RMS$_ESS	RMS$_EXP	RMS$_EXTNOTFOU
RMS$_FAB	RMS$_FLK	RMS$_FNA
RMS$_FNF	RMS$_FNM	RMS$_FOP
RMS$_IFA	RMS$_IFI	RMS$_IMX
RMS$_IRC	RMS$_KNM	RMS$_KSI
RMS$_LNE	RMS$_NAM	RMS$_NAML
RMS$_NAMLESS	RMS$_NAMLFSINV	RMS$_NAMLFSSIZ
RMS$_NAMLRSS	RMS$_NET	RMS$_NETFAIL
RMS$_NOD	RMS$_NORMAL	RMS$_OK_NOP
RMS$_ORG	RMS$_PLG	RMS$_PLV
RMS$_PRV	RMS$_QUO	RMS$_RAT
RMS$_REF	RMS$_RLF	RMS$_RPL
RMS$_RSS	RMS$_RST	RMS$_RUNDOWN
RMS$_SHR	RMS$_STR	RMS$_SUC
RMS$_SUP	RMS$_SUPERSEDE	RMS$_SUPPORT
RMS$_SYN	RMS$_SYS	RMS$_TYP
RMS$_UPI	RMS$_VER	RMS$_WLK
RMS$_XAB

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