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The free functions deal with deallocation of memory that has been
allocated by various routines. It is recommended that the developer use
these routines as they will know about the contents of the structures.

\begin{funcdecl}{krb5_xfree}{void}{\funcinout}
\funcarg{void *}{ptr}
\end{funcdecl}

Frees the pointer \funcarg{ptr}. This is a wrapper macro to
\funcname{free} that is designed to keep lint ``happy.''

\begin{funcdecl}{krb5_free_data}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_data *}{val}
\end{funcdecl}

Frees the data structure \funcparam{val}, including the pointer
\funcparam{val} which has been allocate by any of numerous routines.


\begin{funcdecl}{krb5_free_princial}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_principal}{val}
\end{funcdecl}

Frees the pwd_data \funcparam{val} that has been allocated from
\funcname{krb5_copy_principal}. 

\begin{funcdecl}{krb5_free_authenticator}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_authenticator *}{val}
\end{funcdecl}

Frees the authenticator \funcparam{val}, including the pointer
\funcparam{val}. 

\begin{funcdecl}{krb5_free_authenticator_contents}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_authenticator *}{val}
\end{funcdecl}

Frees the authenticator contents of \funcparam{val}. The pointer 
\funcparam{val} is not freed.


\begin{funcdecl}{krb5_free_addresses}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_address **}{val}
\end{funcdecl}

Frees the series of addresses \funcparam{*val} that have been allocated from
\funcname{krb5_copy_addresses}. 

\begin{funcdecl}{krb5_free_address}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_address *}{val}
\end{funcdecl}

Frees the address \funcparam{val}.

\begin{funcdecl}{krb5_free_authdata}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_authdata **}{val}
\end{funcdecl}

Frees the authdata structure pointed to by \funcparam{val} that has been
allocated from 
\funcname{krb5_copy_authdata}. 

\begin{funcdecl}{krb5_free_enc_tkt_part}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_enc_tkt_part *}{val}
\end{funcdecl}

Frees \funcparam{val} that has been allocated from
\funcname{krb5_enc_tkt_part} and \funcname{krb5_decrypt_tkt_part}.

\begin{funcdecl}{krb5_free_ticket}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_ticket *}{val}
\end{funcdecl}

Frees the ticket \funcparam{val} that has been allocated from
\funcname{krb5_copy_ticket} and other routines.

\begin{funcdecl}{krb5_free_tickets}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_ticket **}{val}
\end{funcdecl}

Frees the tickets pointed to by \funcparam{val}.

\begin{funcdecl}{krb5_free_kdc_req}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_kdc_req *}{val}
\end{funcdecl}

Frees the kdc_req \funcparam{val} and all substructures. The pointer
\funcparam{val} is freed as well.

\begin{funcdecl}{krb5_free_kdc_rep}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_kdc_rep *}{val}
\end{funcdecl}

Frees the kdc_rep \funcparam{val} that has been allocated from
\funcname{krb5_get_in_tkt}. 

\begin{funcdecl}{krb5_free_kdc_rep_part}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_enc_kdc_rep_part *}{val}
\end{funcdecl}

Frees the kdc_rep_part \funcparam{val}.

\begin{funcdecl}{krb5_free_error}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_error *}{val}
\end{funcdecl}

Frees the error \funcparam{val} that has been allocated from
\funcname{krb5_read_error} or \funcname{krb5_sendauth}. 

\begin{funcdecl}{krb5_free_ap_req}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_ap_req *}{val}
\end{funcdecl}

Frees the ap_req \funcparam{val}.

\begin{funcdecl}{krb5_free_ap_rep}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_ap_rep *}{val}
\end{funcdecl}

Frees the ap_rep \funcparam{val}.

\begin{funcdecl}{krb5_free_safe}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_safe *}{val}
\end{funcdecl}

Frees the safe application data \funcparam{val} that is allocated with
\funcparam{decode_krb5_safe}. 


\begin{funcdecl}{krb5_free_priv}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_priv *}{val}
\end{funcdecl}

Frees the private data  \funcparam{val} that has been allocated from
\funcname{decode_krb5_priv}. 

\begin{funcdecl}{krb5_free_priv_enc_part}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_priv_enc_part *}{val}
\end{funcdecl}

Frees the private encoded part \funcparam{val} that has been allocated from
\funcname{decode_krb5_enc_priv_part}. 

\begin{funcdecl}{krb5_free_cred}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_cred *}{val}
\end{funcdecl}

Frees the credential \funcparam{val}.

\begin{funcdecl}{krb5_free_creds}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_creds *}{val}
\end{funcdecl}

Calls \funcname{krb5_free_cred_contents} with \funcparam{val} as the
argument. \funcparam{val} is freed as well.

\begin{funcdecl}{krb5_free_cred_contents}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_creds *}{val}
\end{funcdecl}

The function zeros out the session key stored in the credential and then
frees the credentials structures. The argument \funcparam{val} is
{\bf not} freed.


\begin{funcdecl}{krb5_free_cred_enc_part}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_cred_enc_part *}{val}
\end{funcdecl}

Frees the addresses and ticket_info elements of
\funcparam{val}. \funcparam{val} is {\bf not} freed by this routine.

\begin{funcdecl}{krb5_free_checksum}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_checksum *}{val}
\end{funcdecl}

The checksum and the pointer \funcparam{val} are both freed. 

\begin{funcdecl}{krb5_free_keyblock}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_keyblock *}{val}
\end{funcdecl}

The keyblock contents of \funcparam{val} are zeroed and the memory
freed. The pointer \funcparam{val} is freed as well.

\begin{funcdecl}{krb5_free_pa_data}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_pa_data **}{val}
\end{funcdecl}

Frees the contents of \funcparam{*val}. \funcparam{val} is freed as
well.

\begin{funcdecl}{krb5_free_ap_rep_enc_part}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_ap_rep_enc_part *}{val}
\end{funcdecl}

Frees the subkey keyblock (if set) as well as \funcparam{val} that has
been allocated from \funcname{krb5_rd_rep} or \funcname{krb5_send_auth}.

\begin{funcdecl}{krb5_free_tkt_authent}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_tkt_authent *}{val}
\end{funcdecl}

Frees the ticket and authenticator portions of \funcparam{val}. The
pointer \funcparam{val} is freed as well.

\begin{funcdecl}{krb5_free_pwd_data}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{passwd_pwd_data *}{val}
\end{funcdecl}

Frees the pwd_data \funcparam{val} that has been allocated from
\funcname{decode_krb5_pwd_data}. 

\begin{funcdecl}{krb5_free_pwd_sequences}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{passwd_phrase_element **}{val}
\end{funcdecl}

Frees the passwd_phrase_element \funcparam{val}. This is usually called
from \funcname{krb5_free_pwd_data}.

\begin{funcdecl}{krb5_free_realm_tree}{void}{\funcinout}
\funcarg{krb5_context}{context}
\funcarg{krb5_principal *}{realms}
\end{funcdecl}