DOKK / manpages / debian 11 / libcurl4-doc / CURLOPT_PREQUOTE.3.en
CURLOPT_PREQUOTE(3) curl_easy_setopt options 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),

November 4, 2020 libcurl 7.74.0