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.TH CURLOPT_PROXY_TRANSFER_MODE 3 "January 02, 2023" "libcurl 7.88.1" "curl_easy_setopt options"

.SH NAME
CURLOPT_PROXY_TRANSFER_MODE \- append FTP transfer mode to URL for proxy
.SH SYNOPSIS
.nf
#include <curl/curl.h>

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"
.BR CURLOPT_PROXY "(3), " CURLOPT_HTTPPROXYTUNNEL "(3), "