curl / libcurl / API / curl_easy_setopt / CURLOPT_FTP_USE_PRET

CURLOPT_FTP_USE_PRET explained

Name

CURLOPT_FTP_USE_PRET - 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

FTP

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 7.20.0

Return value

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

See also

CURLOPT_FTP_USE_EPRT(3), CURLOPT_FTP_USE_EPSV(3)

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