cleaned up rewrite

/* modified by Martin Hedenfalk <mhe@stacken.kth.se> for use in Curl

 * last modified 2000-09-18

 */

/*

 * Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan

 * (Royal Institute of Technology, Stockholm, Sweden). 

 * All rights reserved. 

#ifndef __SECURITY_H

#define __SECURITY_H

/*****************************************************************************

 *                                  _   _ ____  _     

 *  Project                     ___| | | |  _ \| |    

 *                             / __| | | | |_) | |    

 *                            | (__| |_| |  _ <| |___ 

 *                             \___|\___/|_| \_\_____|

 *

 * Redistribution and use in source and binary forms, with or without 

 * modification, are permitted provided that the following conditions 

 * are met: 

 * Copyright (C) 2001, Daniel Stenberg, <daniel@haxx.se>, et al.

 *

 * 1. Redistributions of source code must retain the above copyright 

 *    notice, this list of conditions and the following disclaimer. 

 * In order to be useful for every potential user, curl and libcurl are

 * dual-licensed under the MPL and the MIT/X-derivate licenses.

 *

 * 2. Redistributions in binary form must reproduce the above copyright 

 *    notice, this list of conditions and the following disclaimer in the 

 *    documentation and/or other materials provided with the distribution. 

 * You may opt to use, copy, modify, merge, publish, distribute and/or sell

 * copies of the Software, and permit persons to whom the Software is

 * furnished to do so, under the terms of the MPL or the MIT/X-derivate

 * licenses. You may pick one of these licenses.

 *

 * 3. Neither the name of the Institute nor the names of its contributors 

 *    may be used to endorse or promote products derived from this software 

 *    without specific prior written permission. 

 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY

 * KIND, either express or implied.

 *

 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 

 * SUCH DAMAGE. 

 */

/* $Id$ */

 * $Id$

 *****************************************************************************/

#ifndef __security_h__

#define __security_h__

/* this is a re-write */

#include <stdarg.h>

#include "urldata.h"  /* for struct connectdata * */

struct sec_client_mech {

struct Curl_sec_client_mech {

  const char *name;

  size_t size;

  int (*init)(void *);

  int (*decode)(void *, void*, int, int, struct connectdata *);

};

struct sec_server_mech {

  char *name;

  size_t size;

  int (*init)(void *);

  void (*end)(void *);

  int (*check_prot)(void *, int);

  int (*overhead)(void *, int, int);

  int (*encode)(void *, void*, int, int, void**);

  int (*decode)(void *, void*, int, int);

  int (*auth)(void *);

  int (*adat)(void *, void*, size_t);

  size_t (*pbsz)(void *, size_t);

  int (*ccc)(void*);

  int (*userok)(void*, char*);

};

#define AUTH_OK		0

#define AUTH_CONTINUE	1

#define AUTH_ERROR	2

extern struct sec_client_mech krb4_client_mech, gss_client_mech;

extern int sec_complete;

/* ---- */

extern struct Curl_sec_client_mech krb4_client_mech, gss_client_mech;

int sec_fflush (struct connectdata *conn, FILE *);

int sec_fflush_fd(struct connectdata *conn, int fd);

int sec_fprintf (struct connectdata *, FILE *, const char *, ...);

int sec_getc (struct connectdata *conn, FILE *);

int sec_putc (struct connectdata *conn, int, FILE *);

int sec_read (struct connectdata *conn, int, void *, int);

int sec_read_msg (struct connectdata *conn, char *, int);

int Curl_sec_fflush_fd(struct connectdata *conn, int fd);

int Curl_sec_fprintf (struct connectdata *, FILE *, const char *, ...);

int Curl_sec_getc (struct connectdata *conn, FILE *);

int Curl_sec_putc (struct connectdata *conn, int, FILE *);

int Curl_sec_read (struct connectdata *conn, int, void *, int);

int Curl_sec_read_msg (struct connectdata *conn, char *, int);

int sec_vfprintf(struct connectdata *, FILE *, const char *, va_list);

int sec_fprintf2(struct connectdata *conn, FILE *f, const char *fmt, ...);

int sec_vfprintf2(struct connectdata *conn, FILE *, const char *, va_list);

int sec_write (struct connectdata *conn, int, char *, int);

int Curl_sec_vfprintf(struct connectdata *, FILE *, const char *, va_list);

int Curl_sec_fprintf2(struct connectdata *conn, FILE *f, const char *fmt, ...);

int Curl_sec_vfprintf2(struct connectdata *conn, FILE *, const char *, va_list);

int Curl_sec_write (struct connectdata *conn, int, char *, int);

void sec_end (struct connectdata *);

int sec_login (struct connectdata *);

void sec_prot (int, char **);

int sec_request_prot (struct connectdata *conn, const char *level);

void sec_set_protection_level(struct connectdata *conn);

void sec_status (void);

void Curl_sec_end (struct connectdata *);

int Curl_sec_login (struct connectdata *);

void Curl_sec_prot (int, char **);

int Curl_sec_request_prot (struct connectdata *conn, const char *level);

void Curl_sec_set_protection_level(struct connectdata *conn);

void Curl_sec_status (void);

enum protection_level set_command_prot(struct connectdata *,

                                       enum protection_level);

#endif /* __security_h__ */  

#endif