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)