keyctl_revoke (3)

Leading comments

Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
Written by David Howells (dhowells@redhat.com)

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version
2 of the License, or (at your option) any later version.

(The comments found at the beginning of the groff file "man3/keyctl_revoke.3".)

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The key has already been revoked.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)