curl/docs/libcurl/opts/CURLOPT_TELNETOPTIONS.md
Daniel Stenberg b935fd4a07
docs: make each libcurl man specify protocol(s)
The mandatory header now has a mandatory list of protocols for which the
manpage is relevant.

Most man pages already has a "PROTOCOLS" section, but this introduces a
stricter way to specify the relevant protocols.

cd2nroff verifies that at least one protocol is mentioned (which can be
`*`).

This information is not used just yet, but A) the PROTOCOLS section can
now instead get generated and get a unified wording across all manpages
and B) this allows us to more reliably filter/search for protocol
specific manpages/options.

Closes #13166
2024-03-21 15:27:06 +01:00

1.3 KiB

c SPDX-License-Identifier Title Section Source See-also Protocol
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. curl CURLOPT_TELNETOPTIONS 3 libcurl
CURLOPT_HTTPHEADER (3)
CURLOPT_QUOTE (3)
TELNET

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.

DEFAULT

NULL

PROTOCOLS

TELNET

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

Along with TELNET

RETURN VALUE

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