개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(1M)을 검색하려면 섹션에서 1M 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

CURLOPT_CONNECT_ONLY(3)

CURLOPT_CONNECT_ONLY(3)    curl_easy_setopt options    CURLOPT_CONNECT_ONLY(3)



NAME
       CURLOPT_CONNECT_ONLY - stop when connected to target server

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CONNECT_ONLY, long only);

DESCRIPTION
       Pass a long. If the parameter equals 1, it tells the library to perform
       all the required proxy authentication and connection setup, but no data
       transfer, and then return.

       The  option can be used to simply test a connection to a server, but is
       more useful when  used  with  the  CURLINFO_ACTIVESOCKET(3)  option  to
       curl_easy_getinfo(3)  as the library can set up the connection and then
       the application can obtain the most recently used  socket  for  special
       data transfers.

       Since  7.86.0,  this  option can be set to '2' and if HTTP or WebSocket
       are used, libcurl will do the request and  read  all  response  headers
       before handing over control to the application.

       Transfers  marked  connect only will not reuse any existing connections
       and connections marked connect only will not be allowed to get reused.

       If the connect only transfer is done using  the  multi  interface,  the
       particular  easy  handle  must  remain added to the multi handle for as
       long as the application wants to use it. Once it has been removed  with
       curl_multi_remove_handle(3), curl_easy_send(3) and curl_easy_recv(3) do
       not function.

DEFAULT
       0

PROTOCOLS
       HTTP, SMTP, POP3 and IMAP. For WS and WSS starting in 7.86.0.

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         CURLcode ret;
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
         curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
         ret = curl_easy_perform(curl);
         if(ret == CURLE_OK) {
           /* only connected! */
         }
       }

AVAILABILITY
       Added in 7.15.2

RETURN VALUE
       Returns CURLE_OK if the option is supported,  and  CURLE_UNKNOWN_OPTION
       if not.

SEE ALSO
       CURLOPT_VERBOSE(3),    CURLOPT_HTTPPROXYTUNNEL(3),   curl_easy_recv(3),
       curl_easy_send(3)



libcurl 7.86.0                September 12, 2022       CURLOPT_CONNECT_ONLY(3)