.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) Daniel Stenberg, , et al. .\" * .\" * This software is licensed as described in the file COPYING, which .\" * you should have received as part of this distribution. The terms .\" * are also available at https://curl.se/docs/copyright.html. .\" * .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell .\" * copies of the Software, and permit persons to whom the Software is .\" * furnished to do so, under the terms of the COPYING file. .\" * .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY .\" * KIND, either express or implied. .\" * .\" * SPDX-License-Identifier: curl .\" * .\" ************************************************************************** .\" .TH CURLOPT_PROXY_TRANSFER_MODE 3 "19 Jun 2014" libcurl libcurl .SH NAME CURLOPT_PROXY_TRANSFER_MODE \- append FTP transfer mode to URL for proxy .SH SYNOPSIS .nf #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_TRANSFER_MODE, long enabled); .fi .SH 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), \fICURLOPT_TRANSFERTEXT(3)\fP has no effect when doing FTP via a proxy. Beware that not all proxies support this feature. .SH DEFAULT 0, disabled .SH PROTOCOLS FTP over proxy .SH EXAMPLE .nf 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); } .fi .SH AVAILABILITY Added in 7.18.0 .SH RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if the enabled value is not supported. .SH "SEE ALSO" .BN CURLOPT_CRLF (3), .BN CURLOPT_TRANSFERTEXT (3), .BR CURLOPT_HTTPPROXYTUNNEL (3), .BR CURLOPT_PROXY (3)