CURLOPT_PREQUOTE(3) Library Functions Manual CURLOPT_PREQUOTE(3)
NAME
CURLOPT_PREQUOTE - commands to run before an FTP transfer
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PREQUOTE,
struct curl_slist *cmds);
DESCRIPTION
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.
These commands are not performed when a directory listing is performed,
only for file transfers.
While CURLOPT_QUOTE(3) and CURLOPT_POSTQUOTE(3) work for SFTP, this op-
tion does not.
DEFAULT
NULL
PROTOCOLS
This functionality affects ftp only
EXAMPLE
int main(void)
{
struct curl_slist *cmdlist = NULL;
cmdlist = curl_slist_append(cmdlist, "SYST");
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
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);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
curl_slist_free_all(cmdlist);
}
AVAILABILITY
Added in curl 7.9.5
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).
SEE ALSO
CURLOPT_POSTQUOTE(3), CURLOPT_QUOTE(3)
libcurl 2026-07-12 CURLOPT_PREQUOTE(3)
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