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CURLOPT_FTP_USE_PRET

Section: curl_easy_setopt options (3)
Updated: May 05, 2017
Index Return to Main Contents

NAME

CURLOPT_FTP_USE_PRET - enable the PRET command

SYNOPSIS

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTP_USE_PRET, long enable);

DESCRIPTION

Pass a long. If the value is 1, it tells curl to send a PRET command before PASV (and EPSV). Certain FTP servers, mainly drftpd, require this non-standard command for directory listings as well as up and downloads in PASV mode. Has no effect when using the active FTP transfers mode.

DEFAULT

PROTOCOLS

FTP

EXAMPLE

CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/old-server/file.txt");

  /* a drftpd server, do it! */
  curl_easy_setopt(curl, CURLOPT_FTP_USE_PRET, 1L);

  ret = curl_easy_perform(curl);

  curl_easy_cleanup(curl);
}

AVAILABILITY

Added in 7.20.0

RETURN VALUE

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