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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.

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

DEFAULT
       0

PROTOCOLS
       HTTP, SMTP, POP3	and IMAP

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	7.72.0		       February	18, 2019       CURLOPT_CONNECT_ONLY(3)

NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO

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