9 files changed, 98 insertions, 13 deletions

diff --git a/toxcore/DHT.c b/toxcore/DHT.c
index f38ce3a5..84c00c70 100644
--- a/toxcore/DHT.c
+++ b/toxcore/DHT.c
@@ -1579,6 +1579,7 @@ void DHT_save(DHT *dht, uint8_t *data)
     len = num * sizeof(Client_data);
     type = DHT_STATE_TYPE_CLIENTS;
     data = z_state_save_subheader(data, len, type);
+
     if (num) {
         Client_data *clients = (Client_data *)data;
 
@@ -1586,6 +1587,7 @@ void DHT_save(DHT *dht, uint8_t *data)
             if (dht->close_clientlist[i].timestamp != 0)
                 memcpy(&clients[num++], &dht->close_clientlist[i], sizeof(Client_data));
     }
+
     data += len;
 }
 
diff --git a/toxcore/Messenger.c b/toxcore/Messenger.c
index d9e085fb..dbbfa58c 100644
--- a/toxcore/Messenger.c
+++ b/toxcore/Messenger.c
@@ -686,9 +686,9 @@ void m_callback_group_invite(Messenger *m, void (*function)(Messenger *m, int, u
 
 /* Set the callback for group messages.
  *
- *  Function(Messenger *m, int groupnumber, uint8_t * message, uint16_t length, void *userdata)
+ *  Function(Tox *tox, int groupnumber, int friendgroupnumber, uint8_t * message, uint16_t length, void *userdata)
  */
-void m_callback_group_message(Messenger *m, void (*function)(Messenger *m, int, uint8_t *, uint16_t, void *),
+void m_callback_group_message(Messenger *m, void (*function)(Messenger *m, int, int, uint8_t *, uint16_t, void *),
                               void *userdata)
 {
     m->group_message = function;
@@ -705,7 +705,7 @@ static void group_message_function(Group_Chat *chat, int peer_number, uint8_t *m
     }
 
     if (m->group_message)
-        (*m->group_message)(m, i, message, length, m->group_invite_userdata);
+        (*m->group_message)(m, i, peer_number, message, length, m->group_invite_userdata);
 }
 
 /* Creates a new groupchat and puts it in the chats array.
@@ -788,6 +788,25 @@ int del_groupchat(Messenger *m, int groupnumber)
     return 0;
 }
 
+/* Copy the name of peernumber who is in groupnumber to name.
+ * name must be at least MAX_NICK_BYTES long.
+ *
+ * return length of name if success
+ * return -1 if failure
+ */
+int m_group_peername(Messenger *m, int groupnumber, int peernumber, uint8_t *name)
+{
+    if ((unsigned int)groupnumber >= m->numchats)
+        return -1;
+
+    if (m->chats == NULL)
+        return -1;
+
+    if (m->chats[groupnumber] == NULL)
+        return -1;
+
+    return group_peername(m->chats[groupnumber], peernumber, name);
+}
 /* return 1 if that friend was invited to the group
  * return 0 if the friend was not or error.
  */
@@ -1593,6 +1612,7 @@ static int messenger_load_state_callback(void *outer, uint8_t *data, uint32_t le
             break;
 
 #ifdef DEBUG
+
         default:
             fprintf(stderr, "Load state: contains unrecognized part (len %u, type %u)\n",
                     length, type);
diff --git a/toxcore/Messenger.h b/toxcore/Messenger.h
index bfcc69df..78580dc0 100644
--- a/toxcore/Messenger.h
+++ b/toxcore/Messenger.h
@@ -159,7 +159,7 @@ typedef struct Messenger {
     void *friend_connectionstatuschange_userdata;
     void (*group_invite)(struct Messenger *m, int, uint8_t *, void *);
     void *group_invite_userdata;
-    void (*group_message)(struct Messenger *m, int, uint8_t *, uint16_t, void *);
+    void (*group_message)(struct Messenger *m, int, int, uint8_t *, uint16_t, void *);
     void *group_message_userdata;
 
 } Messenger;
@@ -382,9 +382,9 @@ void m_callback_group_invite(Messenger *m, void (*function)(Messenger *m, int, u
 
 /* Set the callback for group messages.
  *
- *  Function(Messenger *m, int groupnumber, uint8_t * message, uint16_t length, void *userdata)
+ *  Function(Tox *tox, int groupnumber, int friendgroupnumber, uint8_t * message, uint16_t length, void *userdata)
  */
-void m_callback_group_message(Messenger *m, void (*function)(Messenger *m, int, uint8_t *, uint16_t, void *),
+void m_callback_group_message(Messenger *m, void (*function)(Messenger *m, int, int, uint8_t *, uint16_t, void *),
                               void *userdata);
 
 /* Creates a new groupchat and puts it in the chats array.
@@ -401,6 +401,14 @@ int add_groupchat(Messenger *m);
  */
 int del_groupchat(Messenger *m, int groupnumber);
 
+/* Copy the name of peernumber who is in groupnumber to name.
+ * name must be at least MAX_NICK_BYTES long.
+ *
+ * return length of name if success
+ * return -1 if failure
+ */
+int m_group_peername(Messenger *m, int groupnumber, int peernumber, uint8_t *name);
+
 /* invite friendnumber to groupnumber
  * return 0 on success
  * return -1 on failure
diff --git a/toxcore/group_chats.c b/toxcore/group_chats.c
index f37c6a9c..dc8e158b 100644
--- a/toxcore/group_chats.c
+++ b/toxcore/group_chats.c
@@ -278,6 +278,28 @@ static int delpeer(Group_Chat *chat, uint8_t *client_id)
 
     return -1;
 }
+
+/* Copy the name of peernum to name.
+ * name must be at least MAX_NICK_BYTES long.
+ *
+ * return length of name if success
+ * return -1 if failure
+ */
+int group_peername(Group_Chat *chat, int peernum, uint8_t *name)
+{
+    if ((uint32_t)peernum >= chat->numpeers)
+        return -1;
+
+    if (chat->group[peernum].nick_len == 0) {
+        memcpy(name, "NSA Agent", 10); /* Kindly remind the user that someone with no name might be a NSA agent.*/
+        return 10;
+    }
+
+    memcpy(name, chat->group[peernum].nick, chat->group[peernum].nick_len);
+    return chat->group[peernum].nick_len;
+}
+
+
 /* min time between pings sent to one peer in seconds */
 #define PING_TIMEOUT 5
 static int send_getnodes(Group_Chat *chat, IP_Port ip_port, int peernum)
diff --git a/toxcore/group_chats.h b/toxcore/group_chats.h
index 78a5488c..e45f2af2 100644
--- a/toxcore/group_chats.h
+++ b/toxcore/group_chats.h
@@ -31,6 +31,8 @@
 extern "C" {
 #endif
 
+#define MAX_NICK_BYTES 128
+
 typedef struct {
     uint8_t     client_id[crypto_box_PUBLICKEYBYTES];
     uint64_t    pingid;
@@ -39,6 +41,9 @@ typedef struct {
     uint64_t    last_recv;
     uint64_t    last_recv_msgping;
     uint32_t    last_message_number;
+
+    uint8_t     nick[MAX_NICK_BYTES];
+    uint16_t    nick_len;
 } Group_Peer;
 
 typedef struct {
@@ -65,6 +70,14 @@ typedef struct Group_Chat {
 
 } Group_Chat;
 
+/* Copy the name of peernum to name.
+ * name must be at least MAX_NICK_BYTES long.
+ *
+ * return length of name if success
+ * return -1 if failure
+ */
+int group_peername(Group_Chat *chat, int peernum, uint8_t *name);
+
 /*
  * Set callback function for chat messages.
  *
diff --git a/toxcore/net_crypto.c b/toxcore/net_crypto.c
index 1de32cb0..a2e42557 100644
--- a/toxcore/net_crypto.c
+++ b/toxcore/net_crypto.c
@@ -456,7 +456,7 @@ int crypto_connect(Net_Crypto *c, uint8_t *public_key, IP_Port ip_port)
     }
 
     if (realloc_cryptoconnection(c, c->crypto_connections_length + 1) == -1
-        || c->crypto_connections == NULL)
+            || c->crypto_connections == NULL)
         return -1;
 
     memset(&(c->crypto_connections[c->crypto_connections_length]), 0, sizeof(Crypto_Connection));
@@ -580,7 +580,7 @@ int accept_crypto_inbound(Net_Crypto *c, int connection_id, uint8_t *public_key,
      * }
      */
     if (realloc_cryptoconnection(c, c->crypto_connections_length + 1) == -1
-        || c->crypto_connections == NULL)
+            || c->crypto_connections == NULL)
         return -1;
 
     memset(&(c->crypto_connections[c->crypto_connections_length]), 0, sizeof(Crypto_Connection));
diff --git a/toxcore/tox.c b/toxcore/tox.c
index 80d64626..4fba360b 100644
--- a/toxcore/tox.c
+++ b/toxcore/tox.c
@@ -379,9 +379,9 @@ void tox_callback_group_invite(void *tox, void (*function)(Messenger *tox, int,
 }
 /* Set the callback for group messages.
  *
- *  Function(Tox *tox, int groupnumber, uint8_t * message, uint16_t length, void *userdata)
+ *  Function(Tox *tox, int groupnumber, int friendgroupnumber, uint8_t * message, uint16_t length, void *userdata)
  */
-void tox_callback_group_message(void *tox, void (*function)(Messenger *tox, int, uint8_t *, uint16_t, void *),
+void tox_callback_group_message(void *tox, void (*function)(Messenger *tox, int, int, uint8_t *, uint16_t, void *),
                                 void *userdata)
 {
     Messenger *m = tox;
@@ -407,6 +407,18 @@ int tox_del_groupchat(void *tox, int groupnumber)
     Messenger *m = tox;
     return del_groupchat(m, groupnumber);
 }
+
+/* Copy the name of peernumber who is in groupnumber to name.
+ * name must be at least MAX_NICK_BYTES long.
+ *
+ * return length of name if success
+ * return -1 if failure
+ */
+int tox_group_peername(void *tox, int groupnumber, int peernumber, uint8_t *name)
+{
+    Messenger *m = tox;
+    return m_group_peername(m, groupnumber, peernumber, name);
+}
 /* invite friendnumber to groupnumber
  * return 0 on success
  * return -1 on failure
diff --git a/toxcore/tox.h b/toxcore/tox.h
index 89242f1f..b39008fe 100644
--- a/toxcore/tox.h
+++ b/toxcore/tox.h
@@ -357,9 +357,9 @@ void tox_callback_group_invite(Tox *tox, void (*function)(Tox *tox, int, uint8_t
 
 /* Set the callback for group messages.
  *
- *  Function(Tox *tox, int groupnumber, uint8_t * message, uint16_t length, void *userdata)
+ *  Function(Tox *tox, int groupnumber, int friendgroupnumber, uint8_t * message, uint16_t length, void *userdata)
  */
-void tox_callback_group_message(Tox *tox, void (*function)(Tox *tox, int, uint8_t *, uint16_t, void *),
+void tox_callback_group_message(Tox *tox, void (*function)(Tox *tox, int, int, uint8_t *, uint16_t, void *),
                                 void *userdata);
 
 /* Creates a new groupchat and puts it in the chats array.
@@ -376,6 +376,14 @@ int tox_add_groupchat(Tox *tox);
  */
 int tox_del_groupchat(Tox *tox, int groupnumber);
 
+/* Copy the name of peernumber who is in groupnumber to name.
+ * name must be at least TOX_MAX_NAME_LENGTH long.
+ *
+ * return length of name if success
+ * return -1 if failure
+ */
+int tox_group_peername(Tox *tox, int groupnumber, int peernumber, uint8_t *name);
+
 /* invite friendnumber to groupnumber
  * return 0 on success
  * return -1 on failure
diff --git a/toxcore/util.h b/toxcore/util.h
index 6937f7d4..9e4ac79a 100644
--- a/toxcore/util.h
+++ b/toxcore/util.h
@@ -18,7 +18,7 @@ void id_cpy(uint8_t *dest, uint8_t *src);
 
 typedef int (*load_state_callback_func)(void *outer, uint8_t *data, uint32_t len, uint16_t type);
 int load_state(load_state_callback_func load_state_callback, void *outer,
-                        uint8_t *data, uint32_t length, uint16_t cookie_inner);
+               uint8_t *data, uint32_t length, uint16_t cookie_inner);
 
 #undef LOGGING
 /* #define LOGGING */