Open System Services System Calls Reference Manual (G06.28+, H06.05+)

System Functions (s and S) stat(2)
file and sets the st_mode field to indicate the file type. For a symbolic link, the stat() function
returns information about the file at the end of the link; no information about the link is returned.
(For information about the link, use the lstat() function.)
The stat() function updates any time-related fields associated with the file before writing into the
stat structure, unless it is a read-only fileset. Time-related fields are not updated for read-only
OSS filesets.
The fields in the stat structure have these meanings and content:
st_dev OSS device identifier for a fileset.
Values for local OSS objects are listed next. Values for local
Guardian objects are described in Use on Guardian Objects,
and values for remote Guardian or OSS objects are described in
Use on Remote Objects, later in this reference page.
For Contains
Regular file ID of device containing directory entry
Directory ID of device containing directory
FIFO ID of special fileset for pipes
AF_UNIX socket ID of device containing the fileset in which
the socket file was created
/dev/null ID of device containing directory entry
/dev/tty ID of device containing directory entry
st_ino File serial number (inode number). The file serial number and
OSS device identifier uniquely identify a regular OSS file within
an OSS fileset.
Values for OSS objects are listed next. Values for Guardian
objects are described in Use on Guardian Objects, later in this
reference page.
For Contains
Regular file File serial number (unique)
Directory File serial number (unique)
FIFO File serial number (unique)
AF_UNIX socket File serial number of the socket file
(unique)
/dev/null File serial number (unique)
/dev/tty File serial number (unique)
The st_ino value for all node entries in /E (including the entry
for the logical link from the local node name to the root fileset
on the local node) is the value for the root fileset on the
corresponding node. If normal conventions are followed, this
value is always 0 (zero), so entries in /E appear to be nonunique.
Values for objects on remote nodes are unique only among the
values for objects within the same fileset on that node.
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