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CentOS 7.0 - man page for keyctl_revoke (centos section 3)

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KEYCTL_REVOKE(3)		    Linux Key Management Calls			 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	      The key has already been revoked.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),
       request-key(8)

Linux					    4 May 2006				 KEYCTL_REVOKE(3)
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