update toxcore, toxav fixes merged

Merge commit 'cae0ab9c5c75eda665d21dc36cfeef48c1e04b53'

external/toxcore/c-toxcore/other/fun/save-generator.c

@@ -137,7 +137,7 @@ int main(int argc, char *argv[])
         printf("Failed to set status. Error number: %d\n", err);
     }
 
-    for (unsigned int i = 2; i < argc; i++) { //start at 2 because that is where the tox ids are
+    for (int i = 2; i < argc; i++) { //start at 2 because that is where the tox ids are
         uint8_t *address = hex_string_to_bin(argv[i]);
         Tox_Err_Friend_Add friend_err;
         tox_friend_add(tox, address, (const uint8_t *)GENERATED_REQUEST_MESSAGE, strlen(GENERATED_REQUEST_MESSAGE),
@@ -145,7 +145,7 @@ int main(int argc, char *argv[])
         free(address);
 
         if (friend_err != TOX_ERR_FRIEND_ADD_OK) {
-            printf("Failed to add friend number %u. Error number: %d\n", i - 1, friend_err);
+            printf("Failed to add friend number %d. Error number: %d\n", i - 1, friend_err);
         }
     }
 

external/toxcore/c-toxcore/other/fun/sign.c

@@ -35,7 +35,7 @@ static int load_file(const char *filename, unsigned char **result)
     fseek(f, 0, SEEK_SET);
     *result = (unsigned char *)malloc(size + 1);
 
-    if (size != fread(*result, sizeof(char), size, f)) {
+    if ((size_t)size != fread(*result, sizeof(char), size, f)) {
         free(*result);
         fclose(f);
         return -2; // -2 means file reading fail
@@ -55,13 +55,13 @@ int main(int argc, char *argv[])
         crypto_sign_ed25519_keypair(pk, sk);
         printf("Public key:\n");
 
-        for (int i = 0; i < crypto_sign_ed25519_PUBLICKEYBYTES; ++i) {
+        for (uint32_t i = 0; i < crypto_sign_ed25519_PUBLICKEYBYTES; ++i) {
             printf("%02X", pk[i]);
         }
 
         printf("\nSecret key:\n");
 
-        for (int i = 0; i < crypto_sign_ed25519_SECRETKEYBYTES; ++i) {
+        for (uint32_t i = 0; i < crypto_sign_ed25519_SECRETKEYBYTES; ++i) {
             printf("%02X", sk[i]);
         }
 

external/toxcore/c-toxcore/other/fun/strkey.c

@@ -117,7 +117,7 @@ int main(int argc, char *argv[])
 #endif
             crypto_box_keypair(public_key, secret_key);
 
-            for (int i = 0; i <= crypto_box_PUBLICKEYBYTES - len; ++i) {
+            for (uint32_t i = 0; i <= crypto_box_PUBLICKEYBYTES - len; ++i) {
                 if (memcmp(public_key + i, desired_bin, len) == 0) {
                     found = 1;
                     break;