#include <curl/curl.h>
-static char *url = NULL;
-static char *user = NULL;
-static char *pass = NULL;
-static char *verify_peer = NULL;
-static char *verify_host = NULL;
-static char *cacert = NULL;
-static char *timeout = NULL;
+static char *url;
+static char *user;
+static char *pass;
+static char *verify_peer;
+static char *verify_host;
+static char *cacert;
+static char *timeout;
-static CURL *curl = NULL;
+static CURL *curl;
static char nginx_buffer[16384];
-static size_t nginx_buffer_len = 0;
+static size_t nginx_buffer_len;
static char nginx_curl_error[CURL_ERROR_SIZE];
static const char *config_keys[] = {