Function

fstat invokes the fstat callable service to get status information about a file that is identified by its file descriptor.

Parameters

fd

The file descriptor (a number) for the file.

stem

The name of a stem variable used to return the status information. Upon return, stem.0 contains the number of variables that are returned. To access the status values, you can use a numeric value (see REXX predefined variables) or any of the predefined variables that begin with ST_. For example, stem.9 and stem.st_atime are both the request for the time of last access.

Variable	Description
ST_AAUDIT	Auditor audit information
ST_ACCESSACL	1 if there is an access ACL (access control list)
ST_ATIME	Time of last access
ST_AUDITID	RACF® File ID for auditing
ST_BLKSIZE	File block size
ST_BLOCKS	Blocks allocated
ST_CCSID	Coded character set ID; first 4 characters are the file tag
ST_CRTIME	File creation time
ST_CTIME	Time of last file status change
ST_DEV	Device ID of the file
ST_DMODELACL	1 if there is a directory model access control list (ACL)
ST_EXTLINK	External symbolic link flag, set to 0 or 1
ST_FID	File identifier
ST_FILEFMT	Format of the file. To specify the format, you can specify a numeric value (see REXX predefined variables) or one of the following predefined variables used to derive the appropriate numeric value: S_FFBINARY Binary data S_FFCR Text data delimited by a carriage return character S_FFCRLF Text data delimited by carriage return and line feed characters S_FFCRNL A text file with lines delimited by carriage-return and newline characters. S_FFLF Text data delimited by a line feed character S_FFLFCR Text data delimited by a line feed and carriage return characters S_FFNA Text data with the file format not specified S_FFNL Text data delimited by a newline character S_FFRECORD File data consisting of records with prefixes. The record prefix contains the length of the record that follows.
ST_FMODELACL	1 if there is a file model ACL
ST_GENVALUE	General attribute values
ST_GID	Group ID of the group of the file
ST_INO	File serial number
ST_MAJOR	Major number for a character special file
ST_MINOR	Minor number for a character special file
ST_MODE	File mode, permission bits only
ST_MTIME	Time of last data modification
ST_NLINK	Number of links
ST_RTIME	File backup time stamp (reference time)
ST_SETGID	Set Group ID on execution flag, set to 0 or 1
ST_SETUID	Set User ID on execution flag, set to 0 or 1
ST_SIZE	File size for a regular file, in bytes. If file size exceeds 231-1 bytes, size is expressed in megabytes, using an M (for example, 3123M).
ST_SECLABEL	Security Label
ST_STICKY	Sticky bit flag (keep loaded executable in storage), set to 0 or 1
ST_TYPE	Numeric value that represents the file type for this file. You can use a numeric value (see REXX predefined variables) or any of the predefined variables that begin with S_ to determine the file type: S_ISCHR Character special file S_ISDIR Directory S_ISFIFO FIFO special file S_ISREG Regular file S_ISSYM Symbolic link
ST_UAUDIT	Area for user audit information
ST_UID	User ID of the owner of the file

Usage notes

All time values returned in stem are in POSIX format. Time is in seconds since 00:00:00 GMT, January 1, 1970. You can use gmtime to convert it to other forms.