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 to 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              The specified key has been revoked.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), keyrings(7), keyutils(7)