GNUnet  0.11.x
messenger_api_contact.c
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1 /*
2  This file is part of GNUnet.
3  Copyright (C) 2020 GNUnet e.V.
4 
5  GNUnet is free software: you can redistribute it and/or modify it
6  under the terms of the GNU Affero General Public License as published
7  by the Free Software Foundation, either version 3 of the License,
8  or (at your option) any later version.
9 
10  GNUnet is distributed in the hope that it will be useful, but
11  WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  Affero General Public License for more details.
14 
15  You should have received a copy of the GNU Affero General Public License
16  along with this program. If not, see <http://www.gnu.org/licenses/>.
17 
18  SPDX-License-Identifier: AGPL3.0-or-later
19  */
26 #include "messenger_api_contact.h"
27 
30 {
32 
33  contact->name = NULL;
34 
35  GNUNET_memcpy(&(contact->public_key), key, sizeof(contact->public_key));
36 
37  return contact;
38 }
39 
40 void
42 {
43  if (contact->name)
44  GNUNET_free(contact->name);
45 
46  GNUNET_free(contact);
47 }
48 
49 const char*
51 {
52  return contact->name;
53 }
54 
55 void
56 set_contact_name (struct GNUNET_MESSENGER_Contact *contact, const char *name)
57 {
58  if (contact->name)
59  GNUNET_free(contact->name);
60 
61  contact->name = name? GNUNET_strdup(name) : NULL;
62 }
63 
64 const struct GNUNET_IDENTITY_PublicKey*
66 {
67  return &(contact->public_key);
68 }
69 
70 const struct GNUNET_HashCode*
72 {
73  static struct GNUNET_HashCode id;
74 
75  GNUNET_CRYPTO_hash (&(contact->public_key), sizeof(contact->public_key), &id);
76 
77  return &id;
78 }
const struct GNUNET_IDENTITY_PublicKey * get_contact_key(const struct GNUNET_MESSENGER_Contact *contact)
Returns the public key of a given contact.
struct GNUNET_IDENTITY_PublicKey public_key
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
static struct GNUNET_IDENTITY_Handle * id
Handle to identity service.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
struct GNUNET_MESSENGER_Contact * create_contact(const struct GNUNET_IDENTITY_PublicKey *key)
Creates and allocates a new contact with a given public key from an EGO.
void destroy_contact(struct GNUNET_MESSENGER_Contact *contact)
Destroys a contact and frees its memory fully.
void GNUNET_CRYPTO_hash(const void *block, size_t size, struct GNUNET_HashCode *ret)
Compute hash of a given block.
Definition: crypto_hash.c:48
messenger api: client implementation of GNUnet MESSENGER service
A 512-bit hashcode.
const char * get_contact_name(const struct GNUNET_MESSENGER_Contact *contact)
Returns the current name of a given contact or NULL if no valid name was assigned yet...
struct GNUNET_HashCode key
The key used in the DHT.
An identity key as per LSD0001.
const char * name
const struct GNUNET_HashCode * get_contact_id_from_key(const struct GNUNET_MESSENGER_Contact *contact)
Returns the resulting hashcode of the public key from a given contact.
void set_contact_name(struct GNUNET_MESSENGER_Contact *contact, const char *name)
Changes the current name of a given contact by copying it from the parameter name.
#define GNUNET_free(ptr)
Wrapper around free.