CURLOPT_PROXY_TRANSFER_MODE - Online Linux Manual PageSection : 3
Updated : November 26, 2021
Source : libcurl 7.82.0
Note : curl_easy_setopt options

NAMECURLOPT_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);

DESCRIPTIONPass 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.

DEFAULT0, disabled

PROTOCOLSFTP over proxy

EXAMPLECURL *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); }

AVAILABILITYAdded in 7.18.0

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

SEE ALSOCURLOPT_PROXY(3), CURLOPT_HTTPPROXYTUNNEL (3),"
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