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CURLINFO_PROTOCOL(3)       Library Functions Manual       CURLINFO_PROTOCOL(3)


NAME

       CURLINFO_PROTOCOL - get the protocol used in the connection


SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PROTOCOL, long *p);


DESCRIPTION

       This option is deprecated. We strongly recommend using
       CURLINFO_SCHEME(3) instead, because this option cannot return all
       possible protocols.

       Pass a pointer to a long to receive the version used in the last http
       connection. The returned value is set to one of the CURLPROTO_* values:

       CURLPROTO_DICT, CURLPROTO_FILE, CURLPROTO_FTP, CURLPROTO_FTPS,
       CURLPROTO_GOPHER, CURLPROTO_HTTP, CURLPROTO_HTTPS, CURLPROTO_IMAP,
       CURLPROTO_IMAPS, CURLPROTO_LDAP, CURLPROTO_LDAPS, CURLPROTO_POP3,
       CURLPROTO_POP3S, CURLPROTO_RTMP, CURLPROTO_RTMPE, CURLPROTO_RTMPS,
       CURLPROTO_RTMPT, CURLPROTO_RTMPTE, CURLPROTO_RTMPTS, CURLPROTO_RTSP,
       CURLPROTO_SCP, CURLPROTO_SFTP, CURLPROTO_SMB, CURLPROTO_SMBS, CURLPROTO_SMTP,
       CURLPROTO_SMTPS, CURLPROTO_TELNET, CURLPROTO_TFTP, CURLPROTO_MQTT


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) {
             long protocol;
             curl_easy_getinfo(curl, CURLINFO_PROTOCOL, &protocol);
           }
           curl_easy_cleanup(curl);
         }
       }


DEPRECATED

       Deprecated since 7.85.0.


AVAILABILITY

       Added in curl 7.52.0


RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
       if not.


SEE ALSO

       CURLINFO_RESPONSE_CODE(3), curl_easy_getinfo(3), curl_easy_setopt(3)

libcurl                           2024-12-12              CURLINFO_PROTOCOL(3)

curl 8.11.1 - Generated Fri Dec 13 08:06:36 CST 2024
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