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        !            23: .TH CURLINFO_SCHEME 3 "March 23, 2020" "libcurl 7.70.0" "curl_easy_getinfo options"
        !            24: 
        !            25: .SH NAME
        !            26: CURLINFO_SCHEME \- get the URL scheme (sometimes called protocol) used in the connection
        !            27: .SH SYNOPSIS
        !            28: #include <curl/curl.h>
        !            29: 
        !            30: CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SCHEME, char **scheme);
        !            31: .SH DESCRIPTION
        !            32: Pass a pointer to a char pointer to receive the pointer to a zero-terminated
        !            33: string holding the URL scheme used for the most recent connection done with
        !            34: this CURL \fBhandle\fP.
        !            35: 
        !            36: The \fBscheme\fP pointer will be NULL or pointing to private memory you MUST
        !            37: NOT free - it gets freed when you call \fIcurl_easy_cleanup(3)\fP on the
        !            38: corresponding CURL handle.
        !            39: .SH PROTOCOLS
        !            40: All
        !            41: .SH EXAMPLE
        !            42: .nf
        !            43: CURL *curl = curl_easy_init();
        !            44: if(curl) {
        !            45:   CURLcode res;
        !            46:   curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
        !            47:   res = curl_easy_perform(curl);
        !            48:   if(res == CURLE_OK) {
        !            49:     char *scheme = NULL;
        !            50:     curl_easy_getinfo(curl, CURLINFO_SCHEME, &scheme);
        !            51:     if(scheme)
        !            52:       printf("scheme: %s\\n", scheme); /* scheme: HTTP */
        !            53:   }
        !            54:   curl_easy_cleanup(curl);
        !            55: }
        !            56: .fi
        !            57: .SH AVAILABILITY
        !            58: Added in 7.52.0
        !            59: .SH RETURN VALUE
        !            60: Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
        !            61: .SH "SEE ALSO"
        !            62: .BR CURLINFO_RESPONSE_CODE "(3), "
        !            63: .BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "