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 <curl/curl.h>
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-termi-
nated 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 corre-
sponding curl handle.
The returned scheme might be upper or lowercase. Do comparisons case in-
sensitively.
PROTOCOLS
This functionality affects all supported protocols
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 curl 7.52.0
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_EFFECTIVE_URL(3), CURLINFO_PROTOCOL(3), CURLINFO_RE-
SPONSE_CODE(3), curl_easy_getinfo(3), curl_easy_setopt(3)
libcurl 2026-07-12 CURLINFO_SCHEME(3)
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