如何解决C中的libcurl错误Curl_easy

问题描述

我正在做C应用程序，使用libcurl将json数据发布到云中。但是我收到错误代码curl_easy_perform 43。

我的代码如下：

int httpconnection (char *Json_Data)
{
  int rc = 0;
  char Url[180];
  CURL *curl;
  struct curl_slist *headers = NULL;
  strcpy (Url,"https://");
  strcat (Url,Host_Name);
  strcat (Url,"/devices/");
  strcat (Url,ID);
  strcat (Url,"/messages/events");
  strcat (Url,"?api-version=2016-02-03");
  printf ("\n\n URL = %s\n",Url);

  headers = curl_slist_append (headers,"Accept: application/json");
  headers = curl_slist_append (headers,"Content-Type: application/json");
  headers = curl_slist_append (headers,"Username: poc-iotconnect-iothub-eu.azure-devices.net/98f5b52a59aa4503999894c10bc33dca-Demo123/?api-version=2018-06-30");
  headers = curl_slist_append (headers,"Authorization : sas");

 rc = curl_easy_setopt (curl,CURLOPT_URL,Url);
        printf ("\n curl_easy_setopt 1 %d -\n",rc);
 rc = curl_easy_setopt (curl,CURLOPT_HTTPHEADER,headers);
        printf("\n curl_easy_setopt 2 %d -\n",rc);
  rc = curl_easy_setopt (curl,CURLOPT_POSTFIELDS,Json_Data);
  printf ("\n curl_easy_setopt 3 %d -\n",rc);

  rc = curl_easy_perform(curl);
        printf("\n Curl_easy_perform %d -\n",rc);

  curl_slist_free_all (headers);
  return rc;
}

int main (void)
{
  int rc = 0,count = 0;
  rc = cloud_init ();
  if (rc != 0)
    printf ("\n Cloud_init Failed.\n");
      Json_Data = Sensor_Data();
      rc = httpconnection(Json_Data);

      if (rc != 0)
        printf ("\n\n HTTP Connection Failed.. \n ");
    return ;
}

输出：

URL = https://poc-iotconnect-iothub-eu.azure-devices.net/devices/98f5b52a59aa4503999894c10bc33dca-Demo123/messages/events?api-version=2016-02-03
 curl_easy_setopt 1 43 -
 curl_easy_setopt 2 43 -
 curl_easy_setopt 3 43 -
 Curl_easy_perform 43 -
 HTTP Connection Failed..

为什么我收到卷曲错误43？如何解决该错误？谁知道请帮助我。

预先感谢

解决方法

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如何解决C中的libcurl错误Curl_easy_perform 43

问题描述

解决方法