keyctl_revoke()
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.
RETURN VALUE
On success
keyctl_revoke()
returns
0.
On error, the value
-1
will be returned and errno will have been set to an appropriate error.
ERRORS
ENOKEY
The specified key does not exist.
EKEYREVOKED
The key has already been revoked.
EACCES
The named key exists, but is not
writable
by the calling process.
LINKING
This is a library function that can be found in
libkeyutils.
When linking,
-lkeyutils
should be specified to the linker.
