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.\" generated by cd2nroff 0.1 from CURLINFO_SCHEME.md
.TH CURLINFO_SCHEME 3 "2025-06-27" libcurl
.SH NAME
CURLINFO_SCHEME \- get the URL scheme (sometimes called protocol) used in the connection
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SCHEME, char **scheme);
.fi
.SH 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 \fBhandle\fP.
The \fBscheme\fP pointer is NULL or points to private memory. You MUST NOT
free \- it gets freed when you call \fIcurl_easy_cleanup(3)\fP on the corresponding
curl handle.
The returned scheme might be upper or lowercase. Do comparisons case
insensitively.
.SH PROTOCOLS
This functionality affects all supported protocols
.SH EXAMPLE
.nf
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);
}
}
.fi
.SH AVAILABILITY
Added in curl 7.52.0
.SH RETURN VALUE
\fIcurl_easy_getinfo(3)\fP returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
\fIlibcurl\-errors(3)\fP.
.SH SEE ALSO
.BR CURLINFO_EFFECTIVE_URL (3),
.BR CURLINFO_PROTOCOL (3),
.BR CURLINFO_RESPONSE_CODE (3),
.BR curl_easy_getinfo (3),
.BR curl_easy_setopt (3)