CURLOPT_RESOLVER_START_DATA - Online Linux Manual PageSection : 3
Updated : November 26, 2021
Source : libcurl 7.82.0
Note : curl_easy_setopt options

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NAMECURLOPT_RESOLVER_START_DATA − pointer passed to the resolver start callback

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SYNOPSIS#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESOLVER_START_DATA, void *pointer);

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DESCRIPTIONPass a pointer that will be untouched by libcurl and passed as the third argument in the resolver start callback set with CURLOPT_RESOLVER_START_FUNCTION(3).

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DEFAULTNULL

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PROTOCOLSAll

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EXAMPLEstatic 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, "https://example.com"); curl_easy_perform(curl); curl_easy_cleanup(curl); }

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AVAILABILITYAdded in 7.59.0

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RETURN VALUEReturns CURLE_OK

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SEE ALSOCURLOPT_RESOLVER_START_FUNCTION(3)" 0

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ERROR : Need New Coding :         (rof_nr_x|149|CURLOPT_RESOLVER_START_DATA.3|48|\n",| printf("Received resolver_state=%p userdata=%p\\n", )    

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