/*
  Copyright (C) 1995-2025 Free Software Foundation, Inc.

  This file is part of GNU Inetutils.

  GNU Inetutils 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 3 of the License, or (at
  your option) any later version.

  GNU Inetutils 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, see `http://www.gnu.org/licenses/'. */

/*
 * Copyright (c) 1985, 1989, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 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.
 * 3. Neither the name of the University 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 PROVIDED BY THE REGENTS 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 REGENTS 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.
 */

/*
 * FTP global variables.
 */

#include <sys/param.h>
#include <setjmp.h>
#include <progname.h>

/* For in_port_t.  */
#include <netinet/in.h>

#ifndef FTP_EXTERN
# define FTP_EXTERN extern
#endif

#define MAXLINE 200

/*
 * Options and other state info.
 */
FTP_EXTERN int trace;		/* trace packets exchanged */
FTP_EXTERN int hash;		/* print # for each buffer transferred */
FTP_EXTERN int hashbytes;	/* number of bytes per # printed */
FTP_EXTERN int sendport;	/* use PORT cmd for each data connection */
FTP_EXTERN int verbose;		/* print messages coming back from server */
FTP_EXTERN int connected;	/* connected to server */
FTP_EXTERN int fromatty;	/* input is from a terminal */
FTP_EXTERN int interactive;	/* interactively prompt on m* cmds */
FTP_EXTERN int debug;		/* debugging level */
FTP_EXTERN int bell;		/* ring bell on cmd completion */
FTP_EXTERN int doglob;		/* glob local file names */
FTP_EXTERN int autologin;	/* establish user account on connection */
FTP_EXTERN int proxy;		/* proxy server connection active */
FTP_EXTERN int proxflag;	/* proxy connection exists */
FTP_EXTERN int sunique;		/* store files on server with unique name */
FTP_EXTERN int runique;		/* store local files with unique name */
FTP_EXTERN int mcase;		/* map upper to lower case for mget names */
FTP_EXTERN int ntflag;		/* use ntin ntout tables for name translation */
FTP_EXTERN int mapflag;		/* use mapin mapout templates on file names */
FTP_EXTERN int code;		/* return/reply code for ftp command */
FTP_EXTERN int crflag;		/* if 1, strip car. rets. on ascii gets */
FTP_EXTERN char pasv[64];	/* passive port for proxy data connection */
FTP_EXTERN int passivemode;	/* passive mode enabled */
FTP_EXTERN int doepsv4;		/* EPSV/EPRT for IPv4 enabled */
FTP_EXTERN int usefamily;	/* Precondition on an address family */
FTP_EXTERN int usereadline;	/* Use readline support, given a TTY.  */
FTP_EXTERN char *altarg;	/* argv[1] with no shell-like preprocessing  */
FTP_EXTERN char ntin[17];	/* input translation table */
FTP_EXTERN char ntout[17];	/* output translation table */
extern char *mapin;		/* input map template */
extern char *mapout;		/* output map template */
FTP_EXTERN char typename[32];	/* name of file transfer type */
FTP_EXTERN int type;		/* requested file transfer type */
FTP_EXTERN int curtype;		/* current file transfer type */
FTP_EXTERN char structname[32];	/* name of file transfer structure */
FTP_EXTERN int stru;		/* file transfer structure */
FTP_EXTERN char formname[32];	/* name of file transfer format */
FTP_EXTERN int form;		/* file transfer format */
FTP_EXTERN char modename[32];	/* name of file transfer mode */
FTP_EXTERN int mode;		/* file transfer mode */
FTP_EXTERN char bytename[32];	/* local byte size in ascii */
FTP_EXTERN int bytesize;	/* local byte size in binary */

FTP_EXTERN char *hostname;	/* name of host connected to */
FTP_EXTERN char *netrc;		/* netrc file chosen on command line */
FTP_EXTERN int unix_server;	/* server is unix, can use binary for ascii */
FTP_EXTERN int unix_proxy;	/* proxy is unix, can use binary for ascii */

FTP_EXTERN jmp_buf toplevel;	/* non-local goto stuff for cmd scanner */

FTP_EXTERN char *line;		/* input produced by readline or getline */
FTP_EXTERN size_t linelen;	/* allocated length of the same, if known */

#ifndef MAXMARGV
# define MAXMARGV 20
#endif

FTP_EXTERN int margc;		/* count of arguments on input line */
FTP_EXTERN char *margv[MAXMARGV];	/* args parsed from input line */
FTP_EXTERN int cpend;		/* flag: if != 0, then pending server reply */
FTP_EXTERN int mflag;		/* flag: if != 0, then active multi command */

FTP_EXTERN int options;		/* used during socket creation */

/*
 * Format of command table.
 */
struct cmd
{
  char *c_name;			/* name of command */
  char *c_help;			/* help string */
  char c_bell;			/* give bell when command completes */
  char c_conn;			/* must be connected to use command */
  char c_proxy;			/* proxy server may execute */
  void (*c_handler) (int, char **);	/* function to call */
};

struct macel
{
  char mac_name[9];		/* macro name */
  char *mac_start;		/* start of macro in macbuf */
  char *mac_end;		/* end of macro in macbuf */
};

FTP_EXTERN int macnum;		/* number of defined macros */
FTP_EXTERN struct macel macros[16];
FTP_EXTERN char macbuf[4096];

#include "extern.h"
