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  #   ˆl–Ðz¾”êe¶¥6 ]¸&n *bÑ¿Äƒ}Ñ;ÂÀÆ %ÿ    /*
 * ProFTPD - FTP server daemon
 * Copyright (c) 1997, 1998 Public Flood Software
 * Copyright (c) 1999, 2000 MacGyver aka Habeeb J. Dihu <macgyver@tos.net>
 * Copyright (c) 2001-2023 The ProFTPD Project team
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
 *
 * As a special exemption, Public Flood Software/MacGyver aka Habeeb J. Dihu
 * and other respective copyright holders give permission to link this program
 * with OpenSSL, and distribute the resulting executable, without including
 * the source code for OpenSSL in the source distribution.
 */

/* General options */

#ifndef PR_PROFTPD_H
#define PR_PROFTPD_H

#include "class.h"
#include "netaddr.h"
#include "options.h"

#ifndef TRUE
# define TRUE				1
#endif

#ifndef FALSE
# define FALSE				0
#endif

/* Definition of root user/group IDs (non-Unix platforms may have these as
 * different from 0/0).
 */
#ifdef __CYGWIN__
# define PR_ROOT_UID    18
# define PR_ROOT_GID    544
#else
# define PR_ROOT_UID    0
# define PR_ROOT_GID    0
#endif /* __CYGWIN__ */

#define CALLBACK_FRAME	\
  unsigned long p1, unsigned long p2, unsigned long p3, void *data

#define ASSERT(x)			assert(x)
#include <assert.h>

typedef int (*callback_t)(CALLBACK_FRAME);

struct class_struc;
struct conn_struc;
struct cmd_struc;
struct config_struc;
struct modret_struc;
struct server_struc;

typedef struct {
  struct pool_rec *pool;

  volatile int sf_flags;		/* Session/State flags */
  volatile int sp_flags;		/* Session/Protection flags */

  pr_netaddr_t data_addr;		/* Remote data address */
  unsigned short data_port;		/* Remote data port */

  const char *auth_mech;		/* Name of the authentication
                                         * module/mechanism that successfully
                                         * authenticated the client
					 */

  const char *rfc2228_mech;		/* RFC2228 authentication mechanism
					 * used
					 */

  char cwd[PR_TUNABLE_PATH_MAX];	/* Current working directory */
  char vwd[PR_TUNABLE_PATH_MAX];	/* Current virtual working directory */

  struct config_struc *dir_config;	/* Closest matching configuration
                                         * for current operation
                                         */

  /* Process ID of the session */
  pid_t pid;

  /* The uid/gids are manipulated by the PRIVS macros in
   * privs.h
   */

  int disable_id_switching;		/* Disable UID/GID switching */
  uid_t uid, ouid;                      /* Current and original UIDs */
  gid_t gid;                            /* Current GID */

  array_header *gids;
  array_header *groups;

  /* fsuid/fsgid are used for automagic chown after creation or upload.
   * They are initially -1, meaning no chown/chgrp.
   */
  uid_t fsuid;				/* Saved file UID */
  gid_t fsgid;				/* Saved file GID */

  const char *user, *group;		/* Username/groupname after login */
  const char *user_homedir;             /* Home directory of user before chroot
                                         */
  uid_t login_uid;                      /* UID after login, but before
                                         * session.uid is changed
                                         */
  gid_t login_gid;                      /* GID after login, but before
                                         * session.gid is changed
                                         */

  pr_table_t *notes;			/* Sessi