change curl_get failed behavior

main.c

@@ -104,10 +104,7 @@ CURLcode curl_get(const char *const url, struct memory *chunk)
 
     status = curl_easy_perform(curl);
     if (status != CURLE_OK)
-    {
         fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(status));
-        exit(status);
-    }
 
     curl_easy_cleanup(curl);
     curl_slist_free_all(headers);
@@ -146,7 +143,9 @@ char *get_enc()
     const cJSON *enc = NULL;
 
     REGEN_ENC_URL_F(url, current_timestamp());
-    curl_get(url, &data);
+
+    if (curl_get(url, &data) != CURLE_OK)
+        return NULL;
 
     DPRINT("%s\n", data.response);
 
@@ -171,13 +170,16 @@ void parise(void *arg)
     {
         char url[200];
         struct memory json_c = {0};
-        const char *enc = get_enc();
+        const char *enc = NULL;
         const cJSON *result = NULL;
         const cJSON *msg = NULL;
         const cJSON *data = NULL;
         const cJSON *errorMsg = NULL;
         cJSON *json = NULL;
 
+        if ((enc = get_enc()) == NULL)
+            continue;
+
         REGEN_URL_F(url, enc, current_timestamp());
         curl_get(url, &json_c);