NAME

       CURLOPT_FTP_ALTERNATIVE_TO_USER - command to use instead of USER with FTP

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTP_ALTERNATIVE_TO_USER,
                                 char *cmd);

DESCRIPTION

       Pass  a  char  pointer as parameter, pointing to a string which is used to authenticate if
       the usual FTP "USER user" and "PASS password" negotiation fails. This  is  currently  only
       known  to  be  required when connecting to Tumbleweed's Secure Transport FTPS server using
       client certificates for authentication.

       The application does not have to keep the string around after setting this option.

DEFAULT

       NULL

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/foo.bin");
           curl_easy_setopt(curl, CURLOPT_FTP_ALTERNATIVE_TO_USER, "two users");
           res = curl_easy_perform(curl);

           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY

       Added in curl 7.15.5

RETURN VALUE

       Returns  CURLE_OK  if  the  option  is  supported,   CURLE_UNKNOWN_OPTION   if   not,   or
       CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO

       CURLOPT_FTP_ACCOUNT(3),  CURLOPT_FTP_SKIP_PASV_IP(3),  CURLOPT_SERVER_RESPONSE_TIMEOUT(3),
       CURLOPT_USERNAME(3)