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CURLOPT_FTP_ALTERNATIVE_TO_USER(3)  libcurl CURLOPT_FTP_ALTERNATIVE_TO_USER(3)


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 * as parameter, pointing to a string which will be 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

       FTP


EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/foo.bin");

         curl_easy_setopt(curl, CURLOPT_FTP_ALTERNATIVE_TO_USER, "two users");

         ret = curl_easy_perform(curl);

         curl_easy_cleanup(curl);
       }


AVAILABILITY

       Added in 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_SKIP_PASV_IP(3), CURLOPT_SERVER_RESPONSE_TIMEOUT(3),

ibcurl 8.1.2                    April 26, 2023
                                            CURLOPT_FTP_ALTERNATIVE_TO_USER(3)

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