CURLOPT_KRBLEVEL(3)        Library Functions Manual        CURLOPT_KRBLEVEL(3)

NAME
       CURLOPT_KRBLEVEL - FTP kerberos security level

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_KRBLEVEL, char *level);

DESCRIPTION
       Deprecated. It serves no purpose anymore.

       Pass a char pointer as parameter. Set the kerberos security level for
       FTP; this also enables kerberos awareness. This is a string that should
       match one of the following: clear, safe, confidential or private. If
       the string is set but does not match one of these, private is used. Set
       the string to NULL to disable kerberos support for FTP.

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

       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_KRBLEVEL, "private");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

HISTORY
       Functionality removed in 8.17.0

       This option was known as CURLOPT_KRB4LEVEL up to 7.16.3

DEPRECATED
       Deprecated since 8.17.0

AVAILABILITY
       Added in curl 7.16.4

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_USE_SSL(3)

libcurl                           2025-11-13               CURLOPT_KRBLEVEL(3)