Manpages - CURLOPT_PREQUOTE.3

CURLOPT_PREQUOTE - commands to run before an FTP transfer

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PREQUOTE, struct curl_slist *cmds);

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). Disable this operation again by setting a NULL to this option.

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

NULL

FTP

  struct curl_slist *cmdlist = NULL;
  cmdlist = curl_slist_append(cmdlist, "SYST");

  curl = curl_easy_init();
  if(curl) {
    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);

    ret = curl_easy_perform(curl);

    curl_easy_cleanup(curl);
  }

Along with the protocol support

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

*CURLOPT_QUOTE*(3), *CURLOPT_POSTQUOTE*(3),