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keyctl_revoke(3)

Linux
4 May 2006

keyutils

Linux Key Management Utilities

libkeyutils-dev

Linux Key Management Utilities (development)

keyutils-libs-devel

Development package for building Linux key management utilities

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The key has already been revoked.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.

REFERENCED BY

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