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 to 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 EKEYREVOKED The specified key has been revoked.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 email@example.com] If you have a bug report for this manual page, send it to firstname.lastname@example.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 2021-04-01. (At that time, the date of the most recent commit that was found in the repository was 2020-07-07.) 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 email@example.com Linux 4 May 2006 KEYCTL_SET_TIMEOUT(3)
Pages that refer to this page: keyctl(2), keyctl(3)