CURLOPT_HTTPPROXYTUNNEL(3) curl_easy_setopt options CURLOPT_HTTPPROXYTUNNEL(3)

NAME
       CURLOPT_HTTPPROXYTUNNEL - tunnel through HTTP proxy

SYNOPSIS
       #include <curl/curl.h>

       CURLcode  curl_easy_setopt(CURL  *handle, CURLOPT_HTTPPROXYTUNNEL, long
       tunnel);

DESCRIPTION
       Set the parameter to 1 to make libcurl tunnel  all  operations  through
       the  HTTP proxy. There is a big difference between using a proxy and to
       tunnel through it. If you don't know  what  this  means,  you  probably
       don't want this tunneling option.

       Tunneling essentially means that a CONNECT is sent to the proxy, asking
       it to connect to a remote host on a specific port number and  then  the
       traffic  is  just  passed  through the proxy. Proxies tend to whitelist
       specific port numbers it allows CONNECT requests to and often only port
       80 and 443 are allowed.

       When using this, it only makes sense to use CURLOPT_PROXYTYPE(3) set to
       a HTTP proxy.

       To suppress proxy CONNECT response headers from user callbacks use CUR-
       LOPT_SUPPRESS_CONNECT_HEADERS(3).

DEFAULT
       0

PROTOCOLS
       All network protocols

EXAMPLE
       TODO

AVAILABILITY
       Always

RETURN VALUE
       Returns CURLE_OK

SEE ALSO
       CURLOPT_PROXY(3), CURLOPT_PROXYTYPE(3), CURLOPT_PROXYPORT(3),

libcurl 7.54.0                  April 28, 2016      CURLOPT_HTTPPROXYTUNNEL(3)