CURLOPT_TELNETOPTIONS(3)   Library Functions Manual   CURLOPT_TELNETOPTIONS(3)

NAME
       CURLOPT_TELNETOPTIONS - set of telnet options

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TELNETOPTIONS,
                                 struct curl_slist *cmds);

DESCRIPTION
       Provide a pointer to a curl_slist with variables to pass to the telnet
       negotiations. The variables should be in the format <option=value>.
       libcurl supports the options TTYPE, XDISPLOC and NEW_ENV. See the
       TELNET standard for details.

       Using this option multiple times makes the last set list override the
       previous ones. Set it to NULL to disable its use again.

       libcurl does not copy the list, it needs to be kept around until after
       the transfer has completed.

DEFAULT
       NULL

PROTOCOLS
       This functionality affects telnet only

EXAMPLE
       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           struct curl_slist *options;
           options = curl_slist_append(NULL, "TTTYPE=vt100");
           options = curl_slist_append(options, "USER=foobar");
           curl_easy_setopt(curl, CURLOPT_URL, "telnet://example.com/");
           curl_easy_setopt(curl, CURLOPT_TELNETOPTIONS, options);
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
           curl_slist_free_all(options);
         }
       }

AVAILABILITY
       Added in curl 7.7

RETURN VALUE
       Returns CURLE_OK if TELNET is supported, and CURLE_UNKNOWN_OPTION if
       not.

SEE ALSO
       CURLOPT_HTTPHEADER(3), CURLOPT_QUOTE(3)

libcurl                           2024-12-12          CURLOPT_TELNETOPTIONS(3)