CURLINFO_SCHEME(3) Library Functions Manual CURLINFO_SCHEME(3) NAME CURLINFO_SCHEME - get the URL scheme (sometimes called protocol) used in the connection SYNOPSIS #include CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SCHEME, char **scheme); DESCRIPTION Pass a pointer to a char pointer to receive the pointer to a null-terminated string holding the URL scheme used for the most recent connection done with this CURL handle. The scheme pointer is NULL or points to private memory. You MUST NOT free - it gets freed when you call curl_easy_cleanup(3) on the corresponding CURL handle. PROTOCOLS All EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode res; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); res = curl_easy_perform(curl); if(res == CURLE_OK) { char *scheme = NULL; curl_easy_getinfo(curl, CURLINFO_SCHEME, &scheme); if(scheme) printf("scheme: %s\n", scheme); /* scheme: HTTP */ } curl_easy_cleanup(curl); } } AVAILABILITY Added in 7.52.0 RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. SEE ALSO CURLINFO_EFFECTIVE_URL(3), CURLINFO_PROTOCOL(3), CURLINFO_RESPONSE_CODE(3), curl_easy_getinfo(3), curl_easy_setopt(3) libcurl April 26 2024 CURLINFO_SCHEME(3)