CURLOPT_FTP_SKIP_PASV_IP

Section: curl_easy_setopt options (3)
Updated: May 05, 2017
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NAME

CURLOPT_FTP_SKIP_PASV_IP - ignore the IP address in the PASV response  

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTP_SKIP_PASV_IP, long skip);  

DESCRIPTION

Pass a long. If skip is set to 1, it instructs libcurl to not use the IP address the server suggests in its 227-response to libcurl's PASV command when libcurl connects the data connection. Instead libcurl will re-use the same IP address it already uses for the control connection. But it will use the port number from the 227-response.

This option thus allows libcurl to work around broken server installations that due to NATs, firewalls or incompetence report the wrong IP address back.

This option has no effect if PORT, EPRT or EPSV is used instead of PASV.  

DEFAULT

0  

PROTOCOLS

FTP  

EXAMPLE

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

  /* please ignore the IP in the PASV response */
  curl_easy_setopt(curl, CURLOPT_FTP_SKIP_PASV_IP, 1L);
  ret = curl_easy_perform(curl);

  curl_easy_cleanup(curl);
}

 

AVAILABILITY

Added in 7.14.2  

RETURN VALUE

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

SEE ALSO

CURLOPT_FTPPORT(3), CURLOPT_FTP_USE_EPRT(3),

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Index

NAME

SYNOPSIS

DESCRIPTION

DEFAULT

PROTOCOLS

EXAMPLE

AVAILABILITY

RETURN VALUE

SEE ALSO