DOKK / manpages / debian 12 / libcurl4-doc / CURLOPT_TELNETOPTIONS.3.en
CURLOPT_TELNETOPTIONS(3) curl_easy_setopt options CURLOPT_TELNETOPTIONS(3)

CURLOPT_TELNETOPTIONS - set of telnet options

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TELNETOPTIONS,

struct curl_slist *cmds);

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.

NULL

TELNET

CURL *curl = curl_easy_init();
if(curl) {

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);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl);
curl_slist_free_all(options); }

Along with TELNET

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

CURLOPT_HTTPHEADER(3), CURLOPT_QUOTE(3),

January 2, 2023 libcurl 7.88.1