1 files changed, 119 insertions, 0 deletions

diff --git a/src/service/messenger/messenger_api_contact.c b/src/service/messenger/messenger_api_contact.c
new file mode 100644
index 000000000..848a27b8f
--- /dev/null
+++ b/src/service/messenger/messenger_api_contact.c
@@ -0,0 +1,119 @@
+/*
+   This file is part of GNUnet.
+   Copyright (C) 2020--2023 GNUnet e.V.
+
+   GNUnet is free software: you can redistribute it and/or modify it
+   under the terms of the GNU Affero General Public License as published
+   by the Free Software Foundation, either version 3 of the License,
+   or (at your option) any later version.
+
+   GNUnet 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
+   Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+   SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/**
+ * @author Tobias Frisch
+ * @file src/messenger/messenger_api_contact.c
+ * @brief messenger api: client implementation of GNUnet MESSENGER service
+ */
+
+#include "platform.h"
+#include "messenger_api_contact.h"
+
+struct GNUNET_MESSENGER_Contact*
+create_contact (const struct GNUNET_CRYPTO_PublicKey *key)
+{
+  GNUNET_assert (key);
+
+  struct GNUNET_MESSENGER_Contact *contact = GNUNET_new (struct
+                                                         GNUNET_MESSENGER_Contact);
+
+  contact->name = NULL;
+  contact->rc = 0;
+
+  GNUNET_memcpy (&(contact->public_key), key, sizeof(contact->public_key));
+
+  return contact;
+}
+
+
+void
+destroy_contact (struct GNUNET_MESSENGER_Contact *contact)
+{
+  GNUNET_assert (contact);
+
+  if (contact->name)
+    GNUNET_free (contact->name);
+
+  GNUNET_free (contact);
+}
+
+
+const char*
+get_contact_name (const struct GNUNET_MESSENGER_Contact *contact)
+{
+  GNUNET_assert (contact);
+
+  return contact->name;
+}
+
+
+void
+set_contact_name (struct GNUNET_MESSENGER_Contact *contact,
+                  const char *name)
+{
+  GNUNET_assert (contact);
+
+  if (contact->name)
+    GNUNET_free (contact->name);
+
+  contact->name = name ? GNUNET_strdup (name) : NULL;
+}
+
+
+const struct GNUNET_CRYPTO_PublicKey*
+get_contact_key (const struct GNUNET_MESSENGER_Contact *contact)
+{
+  GNUNET_assert (contact);
+
+  return &(contact->public_key);
+}
+
+
+void
+increase_contact_rc (struct GNUNET_MESSENGER_Contact *contact)
+{
+  GNUNET_assert (contact);
+
+  contact->rc++;
+}
+
+
+int
+decrease_contact_rc (struct GNUNET_MESSENGER_Contact *contact)
+{
+  GNUNET_assert (contact);
+
+  if (contact->rc > 0)
+    contact->rc--;
+
+  return contact->rc ? GNUNET_NO : GNUNET_YES;
+}
+
+
+void
+get_context_from_member (const struct GNUNET_HashCode *key,
+                         const struct GNUNET_ShortHashCode *id,
+                         struct GNUNET_HashCode *context)
+{
+  GNUNET_assert ((key) && (id) && (context));
+
+  GNUNET_CRYPTO_hash (id, sizeof(*id), context);
+  GNUNET_CRYPTO_hash_xor (key, context, context);
+}