keyctl_revoke - Revoke a key
long keyctl_revoke(key_serial_t key);
() marks a key as being revoked.
After this operation has been performed on a key, attempts to access it will
meet with error EKEYREVOKED
The caller must have write
permission on a key to be able revoke it.
On success keyctl_revoke
() returns 0
. On error, the value
will be returned and errno will have been set to an appropriate
- The specified key does not exist.
- The key has already been revoked.
- The named key exists, but is not writable by the calling
This is a library function that can be found in libkeyutils
should be specified to the linker.