1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Title: CURLINFO_SCHEME 5Section: 3 6Source: libcurl 7See-also: 8 - CURLINFO_EFFECTIVE_URL (3) 9 - CURLINFO_PROTOCOL (3) 10 - CURLINFO_RESPONSE_CODE (3) 11 - curl_easy_getinfo (3) 12 - curl_easy_setopt (3) 13Protocol: 14 - All 15--- 16 17# NAME 18 19CURLINFO_SCHEME - get the URL scheme (sometimes called protocol) used in the connection 20 21# SYNOPSIS 22 23~~~c 24#include <curl/curl.h> 25 26CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SCHEME, char **scheme); 27~~~ 28 29# DESCRIPTION 30 31Pass a pointer to a char pointer to receive the pointer to a null-terminated 32string holding the URL scheme used for the most recent connection done with 33this CURL **handle**. 34 35The **scheme** pointer is NULL or points to private memory. You MUST NOT 36free - it gets freed when you call curl_easy_cleanup(3) on the corresponding 37CURL handle. 38 39The returned scheme might be upper or lowercase. Do comparisons case 40insensitively. 41 42# EXAMPLE 43 44~~~c 45int main(void) 46{ 47 CURL *curl = curl_easy_init(); 48 if(curl) { 49 CURLcode res; 50 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); 51 res = curl_easy_perform(curl); 52 if(res == CURLE_OK) { 53 char *scheme = NULL; 54 curl_easy_getinfo(curl, CURLINFO_SCHEME, &scheme); 55 if(scheme) 56 printf("scheme: %s\n", scheme); /* scheme: HTTP */ 57 } 58 curl_easy_cleanup(curl); 59 } 60} 61~~~ 62 63# AVAILABILITY 64 65Added in 7.52.0 66 67# RETURN VALUE 68 69Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. 70