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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),
November 26, 2021 libcurl 7.83.1

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