KEYCTL_CHOWN(3)		  Linux Key Management Calls	       KEYCTL_CHOWN(3)



NAME
       keyctl_chown - Change the ownership of a key

SYNOPSIS
       #include <keyutils.h>

       long keyctl_chown(key_serial_t key, uid_t uid, gid_t gid);

DESCRIPTION
       keyctl_chown() changes the user and group ownership details of a key.

       A  setting  of  -1  on  either uid or gid will cause that setting to be
       ignored.

       A process that does not have the SysAdmin capability may not  change  a
       key's  UID  or  set  the	 key's	GID to a value that does not match the
       process's GID or one of its group list.

       The caller must have setattr permission on a key to be able change  its
       ownership.

RETURN VALUE
       On  success  keyctl_chown() 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.

       EKEYEXPIRED
	      The specified key has expired.

       EKEYREVOKED
	      The specified key has been revoked.

       EDQUOT Changing the UID to the one specified would run that UID out  of
	      quota.

       EACCES The  key	exists,	 but  does not grant setattr permission to 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_CHOWN(3)