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CURLINFO_NAMELOOKUP_TIME_T - name lookup time in microseconds

NAME  SYNOPSIS  DESCRIPTION  PROTOCOLS  EXAMPLE  AVAILABILITY  RETURN VALUE  SEE ALSO 

NAME

CURLINFO_NAMELOOKUP_TIME_T − name lookup time in microseconds

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_NAMELOOKUP_TIME_T,
curl_off_t *timep);

DESCRIPTION

Pass a pointer to a curl_off_t to receive the total time in microseconds from the start until the name resolving was completed.

When a redirect is followed, the time from each request is added together.

See also the TIMES overview in the curl_easy_getinfo(3) man page.

PROTOCOLS

This functionality affects all supported protocols

EXAMPLE

int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode result;
curl_off_t namelookup;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
result = curl_easy_perform(curl);
if(result == CURLE_OK) {
result = curl_easy_getinfo(curl, CURLINFO_NAMELOOKUP_TIME_T,
&namelookup);
if(result == CURLE_OK) {
printf("Time: %" CURL_FORMAT_CURL_OFF_T ".%06ld", namelookup / 1000000,
(long)(namelookup % 1000000));
}
}
/* always cleanup */
curl_easy_cleanup(curl);
}
}

AVAILABILITY

Added in curl 7.61.0

RETURN VALUE

curl_easy_getinfo(3) returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non−zero means an error occurred, see libcurl−errors(3).

SEE ALSO

CURLINFO_NAMELOOKUP_TIME(3), curl_easy_getinfo(3), curl_easy_setopt(3)


Updated 2026-06-01 - jenkler.se | uex.se