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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              The specified key has been revoked.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)