|  | c: Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al. | 
|  | SPDX-License-Identifier: curl | 
|  | Long: negotiate | 
|  | Help: Use HTTP Negotiate (SPNEGO) authentication | 
|  | Protocols: HTTP | 
|  | See-also: basic ntlm anyauth proxy-negotiate | 
|  | Category: auth http | 
|  | Example: --negotiate -u : $URL | 
|  | Added: 7.10.6 | 
|  | Multi: mutex | 
|  | --- | 
|  | Enables Negotiate (SPNEGO) authentication. | 
|  |  | 
|  | This option requires a library built with GSS-API or SSPI support. Use | 
|  | --version to see if your curl supports GSS-API/SSPI or SPNEGO. | 
|  |  | 
|  | When using this option, you must also provide a fake --user option to activate | 
|  | the authentication code properly. Sending a '-u :' is enough as the user name | 
|  | and password from the --user option are not actually used. | 
|  |  | 
|  | If this option is used several times, only the first one is used. |