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CURLOPT_RESOLVER_START_DATAcurl_easy_setopt optiCURLOPT_RESOLVER_START_DATA(3)

NAME
       CURLOPT_RESOLVER_START_DATA  -  custom  pointer	passed to the resolver
       start callback

SYNOPSIS
       #include	<curl/curl.h>

       CURLcode	 curl_easy_setopt(CURL	*handle,  CURLOPT_RESOLVER_START_DATA,
       void *pointer);

DESCRIPTION
       Pass  a	pointer	 that  will  be	untouched by libcurl and passed	as the
       third argument in the resolver  start  callback	set  with  CURLOPT_RE-
       SOLVER_START_FUNCTION(3).

DEFAULT
       NULL

PROTOCOLS
       All

EXAMPLE
       static int resolver_start_cb(void *resolver_state, void *reserved,
				    void *userdata)
       {
	 (void)reserved;
	 printf("Received resolver_state=%p userdata=%p\n",
		resolver_state,	userdata);
	 return	0;
       }

       CURL *curl = curl_easy_init();
       if(curl)	{
	 curl_easy_setopt(curl,	CURLOPT_RESOLVER_START_FUNCTION, resolver_start_cb);
	 curl_easy_setopt(curl,	CURLOPT_RESOLVER_START_DATA, curl);
	 curl_easy_setopt(curl,	CURLOPT_URL, "http://example.com");
	 curl_easy_perform(curl);
	 curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in	7.59.0

RETURN VALUE
       Returns CURLE_OK

SEE ALSO
       CURLOPT_RESOLVER_START_FUNCTION(3)

libcurl	7.72.0		       February	14, 2018CURLOPT_RESOLVER_START_DATA(3)

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

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