diff options
Diffstat (limited to 'libotr/libotr-4.1.1/src/context_priv.c')
| -rw-r--r-- | libotr/libotr-4.1.1/src/context_priv.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/libotr/libotr-4.1.1/src/context_priv.c b/libotr/libotr-4.1.1/src/context_priv.c new file mode 100644 index 0000000..47d05b9 --- /dev/null +++ b/libotr/libotr-4.1.1/src/context_priv.c @@ -0,0 +1,95 @@ +/* + * Off-the-Record Messaging library + * Copyright (C) 2004-2012 Ian Goldberg, Chris Alexander, Willy Lew, + * Nikita Borisov + * <otr@cypherpunks.ca> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of version 2.1 of the GNU Lesser General + * Public License as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* system headers */ +#include <stdlib.h> +#include <assert.h> + +/* libgcrypt headers */ +#include <gcrypt.h> + +/* libotr headers */ +#include "context_priv.h" + +/* Create a new private connection context */ +ConnContextPriv *otrl_context_priv_new() +{ + ConnContextPriv *context_priv; + context_priv = malloc(sizeof(*context_priv)); + assert(context_priv != NULL); + + context_priv->fragment = NULL; + context_priv->fragment_len = 0; + context_priv->fragment_n = 0; + context_priv->fragment_k = 0; + context_priv->numsavedkeys = 0; + context_priv->saved_mac_keys = NULL; + context_priv->generation = 0; + context_priv->lastsent = 0; + context_priv->lastmessage = NULL; + context_priv->lastrecv = 0; + context_priv->may_retransmit = 0; + context_priv->their_keyid = 0; + context_priv->their_y = NULL; + context_priv->their_old_y = NULL; + context_priv->our_keyid = 0; + context_priv->our_dh_key.groupid = 0; + context_priv->our_dh_key.priv = NULL; + context_priv->our_dh_key.pub = NULL; + context_priv->our_old_dh_key.groupid = 0; + context_priv->our_old_dh_key.priv = NULL; + context_priv->our_old_dh_key.pub = NULL; + otrl_dh_session_blank(&(context_priv->sesskeys[0][0])); + otrl_dh_session_blank(&(context_priv->sesskeys[0][1])); + otrl_dh_session_blank(&(context_priv->sesskeys[1][0])); + otrl_dh_session_blank(&(context_priv->sesskeys[1][1])); + + return context_priv; +} + +/* Resets the appropriate variables when a context + * is being force finished + */ +void otrl_context_priv_force_finished(ConnContextPriv *context_priv) +{ + free(context_priv->fragment); + context_priv->fragment = NULL; + context_priv->fragment_len = 0; + context_priv->fragment_n = 0; + context_priv->fragment_k = 0; + context_priv->numsavedkeys = 0; + free(context_priv->saved_mac_keys); + context_priv->saved_mac_keys = NULL; + gcry_free(context_priv->lastmessage); + context_priv->lastmessage = NULL; + context_priv->may_retransmit = 0; + context_priv->their_keyid = 0; + gcry_mpi_release(context_priv->their_y); + context_priv->their_y = NULL; + gcry_mpi_release(context_priv->their_old_y); + context_priv->their_old_y = NULL; + context_priv->our_keyid = 0; + otrl_dh_keypair_free(&(context_priv->our_dh_key)); + otrl_dh_keypair_free(&(context_priv->our_old_dh_key)); + otrl_dh_session_free(&(context_priv->sesskeys[0][0])); + otrl_dh_session_free(&(context_priv->sesskeys[0][1])); + otrl_dh_session_free(&(context_priv->sesskeys[1][0])); + otrl_dh_session_free(&(context_priv->sesskeys[1][1])); +} |