stat

fstat, fwstat, stat, wstat - get and put file status

Synopsis

include "sys.m";
sys:= load Sys Sys->PATH;
fstat:  fn(fd: ref FD)          : (int, Dir);
fwstat: fn(fd: ref FD;  d: Dir) : int;
stat:   fn(name: string)        : (int, Dir);
wstat:  fn(name: string, d: Dir): int;

Description

Qid: adt 
{   
	path:  int;   
	vers:  int; 
}; 

Dir: adt 
{   
	name:  string;   
	uid:  string;   
	gid:  string;   
	qid:  Qid;   
	mode:  int;   
	atime: int;   
	mtime: int;   
	length: int;   
	dtype: int;   
	dev:  int; 
};

File Mode Bits

16r80000000

Directory. The `Sys` module defines this as `Sys->CHDIR`.

8r400

Read permission by owner.

8r200

Write permission by owner.

8r100

Execute permission (search on directory) by owner

8r070

Read, write, execute (search) by group.

8r007

Read, write, execute (search) by others.

16r80000000	Directory. The `Sys` module defines this as `Sys->CHDIR`.
8r400	Read permission by owner.
8r200	Write permission by owner.
8r100	Execute permission (search on directory) by owner
8r070	Read, write, execute (search) by group.
8r007	Read, write, execute (search) by others.

Modifying File Attributes

Only some of the fields may be changed by wstat calls.


name	The `name` can be changed by anyone with write permission in the parent directory.
mode and mtime	The `mode` and `mtime` can be changed by the owner or the group leader of the file's current group.
gid	The `gid` can be changed by the owner.