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
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
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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