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CURLINFO_HTTP_VERSION(3) Library Functions Manual CURLINFO_HTTP_VERSION(3) NAME CURLINFO_HTTP_VERSION - HTTP version used in the transfer SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HTTP_VERSION, long *p); DESCRIPTION Pass a pointer to a long to receive the version used in the last http transfer done using this handle. The returned value is CURL_HTTP_VER- SION_1_0, CURL_HTTP_VERSION_1_1, CURL_HTTP_VERSION_2_0, CURL_HTTP_VERSION_3 or 0 if the version cannot be determined. PROTOCOLS This functionality affects http only EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode result; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); result = curl_easy_perform(curl); if(result == CURLE_OK) { long http_version; curl_easy_getinfo(curl, CURLINFO_HTTP_VERSION, &http_version); } curl_easy_cleanup(curl); } } AVAILABILITY Added in curl 7.50.0 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_RESPONSE_CODE(3), curl_easy_getinfo(3), curl_easy_setopt(3) libcurl 2026-06-11 CURLINFO_HTTP_VERSION(3)
NAME | SYNOPSIS | DESCRIPTION | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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