CURLOPT_FTP_USE_PRET - Man Page
use PRET for FTP
Synopsis
#include <curl/curl.h> 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
0
Protocols
This functionality affects ftp only
Example
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    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);
    res = curl_easy_perform(curl);
    curl_easy_cleanup(curl);
  }
}Availability
Added in curl 7.20.0
Return Value
curl_easy_setopt(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).
See Also
Referenced By
curl_easy_setopt(3), libcurl-symbols(3).
2025-10-13 libcurl