我需要关于使用 libcurl 进行以下操作的说明:
我需要发送如下所示的 http HEAD 请求::
HEAD /mshare/3/30002:12:primary/stream_xNKNVH.mpeg HTTP/1.1
Host: 192.168.70.1:8080
Accept: */*
User-Agent: Kreatel_IP-STB
getcontentFeatures.dlna.org: 1
我编写的代码(如下所示)以略有不同的方式发送 HEAD 请求:
curl_global_init(CURL_GLOBAL_ALL);
CURL* ctx = NULL;
const char *url = "http://192.168.70.1:8080/mshare/3/30002:12:primary/stream_xNKNVH.mpeg" ;
char *returnString;
struct curl_slist *headers = NULL;
ctx = curl_easy_init();
headers = curl_slist_append(headers,"Accept: */*");
headers = curl_slist_append(headers,"User-Agent: Kreatel_IP-STB");\
headers = curl_slist_append(headers,"getcontentFeatures.dlna.org: 1");
headers = curl_slist_append(headers,"Pragma:");
headers = curl_slist_append(headers,"Proxy-Connection:");
curl_easy_setopt(ctx,CURLOPT_HTTPHEADER , headers );
curl_easy_setopt(ctx,CURLOPT_NOBODY ,1 );
curl_easy_setopt(ctx,CURLOPT_VERBOSE, 1);
curl_easy_setopt(ctx,CURLOPT_URL,url );
curl_easy_setopt(ctx,CURLOPT_NOPROGRESS ,1 );
curl_easy_perform(ctx);
curl_easy_cleanup(ctx);
curl_global_cleanup();
上面显示的代码以稍微不同的形式发送 HEAD 请求,添加了一个Proxy-Connection
标题(如下所示)
HEAD http://192.168.70.1:8080/mshare/3/30002:12:primary/stream_xNKNVH.mpeg HTTP/1.1
Host: 192.168.70.1:8080
Proxy-Connection: Keep-Alive
Accept: */*
User-Agent: Kreatel_IP-STB
getcontentFeatures.dlna.org: 1
任何人都可以分享适当的代码吗?