1 .\" $NetBSD: revoke.2,v 1.15 2011/07/08 19:26:19 wiz Exp $
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33 .\" @(#)revoke.2 8.1 (Berkeley) 6/4/93
40 .Nd revoke file access
46 .Fn revoke "const char *path"
50 function invalidates all current open file descriptors in the system
53 Subsequent operations on any such descriptors
54 fail, with the exceptions that a
56 from a character device file which has been revoked
57 returns a count of zero (end of file),
61 If the file is a special file for a device which is open,
62 the device close function
63 is called as if all open references to the file had been closed.
65 Access to a file may be revoked only by its owner or the super user.
69 function is normally used to prepare a terminal device for a new login session,
70 preventing any access by a previous user of the terminal.
72 A 0 value indicates that the call succeeded.
73 A \-1 return value indicates an error occurred and
75 is set to indicate the reason.
77 Access to the named file is revoked unless one of the following:
80 Search permission is denied for a component of the path prefix.
83 points outside the process's allocated address space.
85 Too many symbolic links were encountered in translating the pathname.
86 .It Bq Er ENAMETOOLONG
87 A component of a pathname exceeded 255 characters,
88 or an entire path name exceeded 1024 characters.
90 The named file or a component of the path name does not exist.
92 A component of the path prefix is not a directory.
94 The caller is neither the owner of the file nor the super user.
107 function was introduced in