NAME

       keyctl_revoke - Revoke a key

SYNOPSIS

       #include <keyutils.h>

       long keyctl_revoke(key_serial_t key);

DESCRIPTION

       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              The key has already been revoked.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.

SEE ALSO

       keyctl(1),
       add_key(2),
       keyctl(2),
       request_key(2),
       keyctl(3),
       keyutils(7),
       keyrings(7)