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CURLOPT_PROXY_TRANSFER_MODE(3)      libcurl     CURLOPT_PROXY_TRANSFER_MODE(3)


NAME

       CURLOPT_PROXY_TRANSFER_MODE - append FTP transfer mode to URL for proxy


SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_TRANSFER_MODE,
                                 long enabled);


DESCRIPTION

       Pass a long. If the value is set to 1 (one), it tells libcurl to set
       the transfer mode (binary or ASCII) for FTP transfers done via an HTTP
       proxy, by appending ;type=a or ;type=i to the URL. Without this
       setting, or it being set to 0 (zero, the default),
       CURLOPT_TRANSFERTEXT(3) has no effect when doing FTP via a proxy.
       Beware that not all proxies support this feature.


DEFAULT

       0, disabled


PROTOCOLS

       FTP over proxy


EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/old-server/file.txt");
         curl_easy_setopt(curl, CURLOPT_PROXY, "http://localhost:80");
         curl_easy_setopt(curl, CURLOPT_PROXY_TRANSFER_MODE, 1L);
         curl_easy_setopt(curl, CURLOPT_TRANSFERTEXT, 1L);
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }


AVAILABILITY

       Added in 7.18.0


RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
       if the enabled value is not supported.


SEE ALSO

       CURLOPT_PROXY(3), CURLOPT_HTTPPROXYTUNNEL(3),

ibcurl 8.1.2                    April 26, 2023  CURLOPT_PROXY_TRANSFER_MODE(3)

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