|
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | LINKING | SEE ALSO | COLOPHON |
KEYCTL_SET_TIMEOUT(3) Linux Key Management Calls KEYCTL_SET_TIMEOUT(3)
keyctl_set_timeout - set the expiration timer on a key
#include <keyutils.h>
long keyctl_set_timeout(key_serial_t key, unsigned timeout);
keyctl_set_timeout() sets the expiration timer on a key to timeout
seconds into the future. Setting timeout to zero cancels the
expiration, assuming the key hasn't already expired.
When the key expires, further attempts to access it will be met with
error EKEYEXPIRED.
The caller must have setattr permission on a key to be able change
its permissions mask.
On success keyctl_set_timeout() returns 0 . On error, the value -1
will be returned and errno will have been set to an appropriate
error.
ENOKEY The specified key does not exist.
EKEYEXPIRED
The specified key has already expired.
EKEYREVOKED
The specified key has been revoked.
EACCES The named key exists, but does not grant setattr permission to
the calling process.
This is a library function that can be found in libkeyutils. When
linking, -lkeyutils should be specified to the linker.
keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3),
keyrings(7), keyutils(7)
This page is part of the keyutils (key management utilities) project.
Information about the project can be found at [unknown -- if you
know, please contact man-pages@man7.org] If you have a bug report for
this manual page, send it to keyrings@linux-nfs.org. This page was
obtained from the project's upstream Git repository
⟨http://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git⟩
on 2017-07-05. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-to-
date source for the page, or you have corrections or improvements to
the information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
Linux 4 May 2006 KEYCTL_SET_TIMEOUT(3)
Pages that refer to this page: keyctl(2), keyctl(3)