Added disabling of UDP and basic SOCKS5 proxy support to public API.

tox_new() now takes a Tox_Options struct as argument.

If a NULL pointer is passed to that struct, defaults are used.

auto_tests/tox_test.c

@@ -124,9 +124,9 @@ void write_file(Tox *m, int friendnumber, uint8_t filenumber, const uint8_t *dat
 START_TEST(test_few_clients)
 {
     long long unsigned int con_time, cur_time = time(NULL);
-    Tox *tox1 = tox_new(TOX_ENABLE_IPV6_DEFAULT);
-    Tox *tox2 = tox_new(TOX_ENABLE_IPV6_DEFAULT);
-    Tox *tox3 = tox_new(TOX_ENABLE_IPV6_DEFAULT);
+    Tox *tox1 = tox_new(0);
+    Tox *tox2 = tox_new(0);
+    Tox *tox3 = tox_new(0);
     ck_assert_msg(tox1 || tox2 || tox3, "Failed to create 3 tox instances");
     uint32_t to_compare = 974536;
     tox_callback_friend_request(tox2, accept_friend_request, &to_compare);
@@ -302,7 +302,7 @@ START_TEST(test_many_clients)
     uint32_t to_comp = 974536;
 
     for (i = 0; i < NUM_TOXES; ++i) {
-        toxes[i] = tox_new(TOX_ENABLE_IPV6_DEFAULT);
+        toxes[i] = tox_new(0);
         ck_assert_msg(toxes[i] != 0, "Failed to create tox instances %u", i);
         tox_callback_friend_request(toxes[i], accept_friend_request, &to_comp);
     }

testing/nTox.c

@@ -1225,7 +1225,7 @@ int main(int argc, char *argv[])
         if (!strcmp(argv[argc - 2], "-f"))
             filename = argv[argc - 1];
 
-    m = tox_new(ipv6enabled);
+    m = tox_new(0);
 
     if ( !m ) {
         fputs("Failed to allocate Messenger datastructure", stderr);
@@ -1258,7 +1258,6 @@ int main(int argc, char *argv[])
     uint16_t port = htons(atoi(argv[argvoffset + 2]));
     unsigned char *binary_string = hex_string_to_bin(argv[argvoffset + 3]);
     int res = tox_bootstrap_from_address(m, argv[argvoffset + 1], ipv6enabled, port, binary_string);
-    free(binary_string);
 
     if (!res) {
         printf("Failed to convert \"%s\" into an IP address. Exiting...\n", argv[argvoffset + 1]);
@@ -1319,6 +1318,7 @@ int main(int argc, char *argv[])
         }
     }
 
+    free(binary_string);
     tox_kill(m);
     endwin();
     return 0;

testing/tox_sync.c

@@ -214,7 +214,7 @@ int main(int argc, char *argv[])
         exit(0);
     }
 
-    Tox *tox = tox_new(ipv6enabled);
+    Tox *tox = tox_new(0);
     tox_callback_file_data(tox, write_file, NULL);
     tox_callback_file_control(tox, file_print_control, NULL);
     tox_callback_file_send_request(tox, file_request_accept, NULL);

toxcore/onion_client.c

@@ -40,6 +40,9 @@
  */
 int onion_add_path_node(Onion_Client *onion_c, IP_Port ip_port, const uint8_t *client_id)
 {
+    if (ip_port.ip.family != AF_INET && ip_port.ip.family != AF_INET6)
+        return -1;
+
     unsigned int i;
 
     for (i = 0; i < MAX_PATH_NODES; ++i) {

toxcore/tox.c

@@ -815,12 +815,32 @@ uint32_t tox_do_interval(Tox *tox)
  *  return allocated instance of tox on success.
  *  return 0 if there are problems.
  */
-Tox *tox_new(uint8_t ipv6enabled)
+Tox *tox_new(Tox_Options *options)
 {
     LOGGER_INIT(LOGGER_OUTPUT_FILE, LOGGER_LEVEL);
-    Messenger_Options options = {0};
-    options.ipv6enabled = ipv6enabled;
-    return new_messenger(&options);
+    Messenger_Options m_options = {0};
+
+    if (options == NULL) {
+        m_options.ipv6enabled = TOX_ENABLE_IPV6_DEFAULT;
+    } else {
+        m_options.ipv6enabled = options->ipv6enabled;
+        m_options.udp_disabled = options->udp_disabled;
+        m_options.proxy_enabled = options->proxy_enabled;
+
+        if (m_options.proxy_enabled) {
+            ip_init(&m_options.proxy_info.ip_port.ip, m_options.ipv6enabled);
+
+            if (m_options.ipv6enabled)
+                m_options.proxy_info.ip_port.ip.family = AF_UNSPEC;
+
+            if (!addr_resolve_or_parse_ip(options->proxy_address, &m_options.proxy_info.ip_port.ip, NULL))
+                return NULL;
+
+            m_options.proxy_info.ip_port.port = htons(options->proxy_port);
+        }
+    }
+
+    return new_messenger(&m_options);
 }
 
 /* Run this before closing shop.

toxcore/tox.h

@@ -622,20 +622,39 @@ int tox_bootstrap_from_address(Tox *tox, const char *address, uint8_t ipv6enable
  */
 int tox_isconnected(const Tox *tox);
 
+typedef struct {
+    /*
+    *  The type of UDP socket created depends on ipv6enabled:
+    *  If set to 0 (zero), creates an IPv4 socket which subsequently only allows
+    *    IPv4 communication
+    *  If set to anything else (default), creates an IPv6 socket which allows both IPv4 AND
+    *    IPv6 communication
+    */
+    uint8_t ipv6enabled;
+
+    /* Set to 1 to disable udp support. (default: 0)
+       This will force Tox to use TCP only which may slow things down.
+       Disabling udp support is necessary when using anonymous proxies or Tor.*/
+    uint8_t udp_disabled;
+
+    /* Enable proxy support. (only basic TCP socks5 proxy currently supported.) (default: 0 (disabled))*/
+    uint8_t proxy_enabled;
+    char proxy_address[256]; /* Proxy ip or domain in NULL terminated string format. */
+    uint16_t proxy_port; /* Proxy port: in host byte order. */
+} Tox_Options;
+
 /*
  *  Run this function at startup.
  *
- * Initializes a tox structure
- *  The type of communication socket depends on ipv6enabled:
- *  If set to 0 (zero), creates an IPv4 socket which subsequently only allows
- *    IPv4 communication
- *  If set to anything else, creates an IPv6 socket which allows both IPv4 AND
- *    IPv6 communication
+ * Options are some options that can be passed to the Tox instance (see above struct).
  *
+ * If options is NULL, tox_new() will use default settings.
+ *
+ * Initializes a tox structure
  *  return allocated instance of tox on success.
- *  return 0 if there are problems.
+ *  return NULL on failure.
  */
-Tox *tox_new(uint8_t ipv6enabled);
+Tox *tox_new(Tox_Options *options);
 
 /* Run this before closing shop.
  * Free all datastructures. */