CURLOPT_PREQUOTE(3)

CURLOPT_PREQUOTE3

Commands to run before an ftp transfer

Usage

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PREQUOTE,
                          struct curl_slist *cmds);

Overview

Pass a pointer to a linked list of FTP commands to pass to the server after the transfer type is set. The linked list should be a fully valid list of struct curl_slist structs properly filled in as described for CURLOPT_QUOTE(3).

Using this option multiple times makes the last set string override the previous ones. Set it to NULL to disable its use again.

libcurl does not copy the list, it needs to be kept around until after the transfer has completed.

While CURLOPT_QUOTE(3) and CURLOPT_POSTQUOTE(3) work for SFTP, this option does not.

Default

NULL

Protocols

This functionality affects ftp only

Examples

int main(void)
{
  CURL *curl;
  struct curl_slist *cmdlist = NULL;
  cmdlist = curl_slist_append(cmdlist, "SYST");
  curl = curl_easy_init();
  if(curl) {
    CURLcode result;
    curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/foo.bin");
    /* pass in the FTP commands to run */
    curl_easy_setopt(curl, CURLOPT_PREQUOTE, cmdlist);
    result = curl_easy_perform(curl);
    curl_easy_cleanup(curl);
  }
  curl_slist_free_all(cmdlist);
}

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).

Releases

7 releases since Debian 8 (Jessie); the text changed 6 times.

  1. 8
  2. 9
  3. 10
  4. 11
  5. 12
  6. 13
  7. Arch

Availability

Added in curl 7.9.5

From curl 8.23.0-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.