Use calloc instead of malloc for new message queue items

This prevents us from accidentally using uninitialized memory

src/chat.c

@@ -130,7 +130,7 @@ static void set_self_typingstatus(ToxWindow *self, Tox *m, bool is_typing)
 
     ChatContext *ctx = self->chatwin;
 
-    TOX_ERR_SET_TYPING err;
+    Tox_Err_Set_Typing err;
     tox_self_set_typing(m, self->num, is_typing, &err);
 
     if (err != TOX_ERR_SET_TYPING_OK) {

src/game_base.c

@@ -1129,7 +1129,7 @@ int game_packet_send(const GameData *game, const uint8_t *data, size_t length, G
     memcpy(packet + 1 + GAME_PACKET_HEADER_SIZE, data, length);
     packet_length += length;
 
-    TOX_ERR_FRIEND_CUSTOM_PACKET err;
+    Tox_Err_Friend_Custom_Packet err;
 
     if (!tox_friend_send_lossless_packet(game->tox, game->friend_number, packet, packet_length, &err)) {
         fprintf(stderr, "failed to send game packet: error %d\n", err);

src/line_info.c

@@ -143,11 +143,14 @@ static struct line_info *line_info_ret_queue(struct history *hst)
  */
 static int print_n_chars(WINDOW *win, const wchar_t *s, size_t n, int max_y)
 {
+    // we use an array to represent a single wchar in order to get around an ncurses
+    // bug with waddnwstr() that overreads the memory address by one byte when
+    // supplied with a single wchar.
+    wchar_t ch[2] = {0};
     bool newline = false;
-    wchar_t ch;
 
-    for (size_t i = 0; i < n && (ch = s[i]); ++i) {
+    for (size_t i = 0; i < n && (ch[0] = s[i]); ++i) {
-        if (ch == L'\n') {
+        if (ch[0] == L'\n') {
             newline = true;
 
             int x;
@@ -164,11 +167,11 @@ static int print_n_chars(WINDOW *win, const wchar_t *s, size_t n, int max_y)
 
         if (win) {
 #ifdef HAVE_WIDECHAR
-            waddnwstr(win, &ch, 1);
+            waddnwstr(win, ch, 1);
 #else
             char b;
 
-            if (wcstombs(&b, &ch, sizeof(char)) != 1) {
+            if (wcstombs(&b, ch, sizeof(char)) != 1) {
                 continue;
             }
 

src/message_queue.c

@@ -48,7 +48,7 @@ void cqueue_add(struct chat_queue *q, const char *msg, size_t len, uint8_t type,
         return;
     }
 
-    struct cqueue_msg *new_m = malloc(sizeof(struct cqueue_msg));
+    struct cqueue_msg *new_m = calloc(1, sizeof(struct cqueue_msg));
 
     if (new_m == NULL) {
         exit_toxic_err("failed in cqueue_message", FATALERR_MEMORY);
@@ -62,6 +62,7 @@ void cqueue_add(struct chat_queue *q, const char *msg, size_t len, uint8_t type,
     new_m->time_added = get_unix_time();
     new_m->receipt = -1;
     new_m->next = NULL;
+    new_m->noread_flag = false;
 
     if (q->root == NULL) {
         new_m->prev = NULL;
@@ -203,7 +204,7 @@ void cqueue_try_send(ToxWindow *self, Tox *m)
             return;
         }
 
-        TOX_ERR_FRIEND_SEND_MESSAGE err;
+        Tox_Err_Friend_Send_Message err;
         Tox_Message_Type type = msg->type == OUT_MSG ? TOX_MESSAGE_TYPE_NORMAL : TOX_MESSAGE_TYPE_ACTION;
         uint32_t receipt = tox_friend_send_message(m, self->num, type, (uint8_t *) msg->message, msg->len, &err);
 

src/python_api.c

@@ -20,9 +20,10 @@
  *
  */
 
+#include "api.h"
+
 #ifdef PYTHON
 #include <Python.h>
-#include "api.h"
 
 #include "execute.h"
 

src/toxic.c

@@ -229,7 +229,7 @@ void exit_toxic_err(const char *errmsg, int errcode)
     exit(EXIT_FAILURE);
 }
 
-void cb_toxcore_logger(Tox *m, TOX_LOG_LEVEL level, const char *file, uint32_t line, const char *func,
+void cb_toxcore_logger(Tox *m, Tox_Log_Level level, const char *file, uint32_t line, const char *func,
                        const char *message, void *user_data)
 {
     UNUSED_VAR(user_data);