xref: /src/libexec/ftpd/extern.h

/*	$NetBSD: extern.h,v 1.23 2000/01/12 22:39:28 lukem Exp $	*/

/*-
 * Copyright (c) 1992, 1993
 *	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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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.
 *
 *	@(#)extern.h	8.2 (Berkeley) 4/4/94
 */

/*-
 * Copyright (c) 1997-2000 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Luke Mewburn.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

/*
 * Copyright (C) 1997 and 1998 WIDE Project.
 * 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 project 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 PROJECT 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 PROJECT 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.
 */

void	blkfree __P((char **));
char   *conffilename __P((const char *));
char  **copyblk __P((char **));
void	count_users __P((void));
void	cwd __P((const char *));
void	delete __P((const char *));
char  **do_conversion __P((const char *));
void	dologout __P((int));
void	fatal __P((const char *));
int	format_file __P((const char *, int));
int	ftpd_pclose __P((FILE *));
FILE   *ftpd_popen __P((char *[], const char *, int));
char   *getline __P((char *, int, FILE *));
void	init_curclass __P((void));
void	logcmd __P((const char *, off_t, const char *, const char *,
	    const struct timeval *, const char *));
void	logwtmp __P((const char *, const char *, const char *));
void	lreply __P((int, const char *, ...));
void	makedir __P((const char *));
void	parse_conf __P((char *));
void	pass __P((const char *));
void	passive __P((void));
void	long_passive __P((char *, int));
void	perror_reply __P((int, const char *));
void	pwd __P((void));
void	removedir __P((const char *));
void	renamecmd __P((const char *, const char *));
char   *renamefrom __P((char *));
void	reply __P((int, const char *, ...));
void	retrieve __P((char *[], const char *));
void	send_file_list __P((const char *));
void	show_chdir_messages __P((int));
void	statcmd __P((void));
void	statfilecmd __P((const char *));
void	store __P((const char *, const char *, int));
int	strsuftoi __P((const char *));
void	user __P((const char *));
char   *xstrdup __P((const char *));
void	yyerror __P((char *));

typedef long long qdfmt_t;
typedef unsigned long long qufmt_t;

typedef enum {
	CLASS_GUEST,
	CLASS_CHROOT,
	CLASS_REAL
} class_t;

struct ftpconv {
	struct ftpconv	*next;
	char		*suffix;	/* Suffix of requested name */
	char		*types;		/* Valid file types */
	char		*disable;	/* File to disable conversions */
	char		*command;	/* Command to do the conversion */
};

struct ftpclass {
	int		 checkportcmd;	/* Check PORT commands are valid */
	char		*classname;	/* Current class */
	struct ftpconv	*conversions;	/* List of conversions */
	char		*display;	/* Files to display upon chdir */
	int	 	 limit;		/* Max connections (-1 = unlimited) */
	char		*limitfile;	/* File to display if limit reached */
	int		 maxrateget;	/* Maximum get transfer rate throttle */
	int		 maxrateput;	/* Maximum put transfer rate throttle */
	unsigned int	 maxtimeout;	/* Maximum permitted timeout */
	int		 modify;	/* Allow CHMOD, DELE, MKD, RMD, RNFR,
					   UMASK */
	char		*motd;		/* MotD file to display after login */
	char		*notify;	/* Files to notify about upon chdir */
	int		 passive;	/* Allow PASV mode */
	int		 portmin;	/* Minumum port for passive mode */
	int		 portmax;	/* Maximum port for passive mode */
	int		 rateget;	/* Get (RETR) transfer rate throttle */
	int		 rateput;	/* Put (STOR) transfer rate throttle */
	unsigned int	 timeout;	/* Default timeout */
	class_t		 type;		/* Class type */
	mode_t		 umask;		/* Umask to use */
	int		 upload;	/* As per modify, but also allow
					   APPE, STOR, STOU */
};

#include <netinet/in.h>

union sockunion {
	struct sockinet {
		u_char si_len;
		u_char si_family;
		u_short si_port;
	} su_si;
	struct sockaddr_in  su_sin;
	struct sockaddr_in6 su_sin6;
};
#define su_len		su_si.si_len
#define su_family	su_si.si_family
#define su_port		su_si.si_port

extern  int		yyparse __P((void));

#ifndef	GLOBAL
#define	GLOBAL	extern
#endif

GLOBAL	int		connections;
GLOBAL	struct ftpclass	curclass;
GLOBAL	union sockunion data_dest;
GLOBAL	int		debug;
GLOBAL	jmp_buf		errcatch;
GLOBAL	int		form;
GLOBAL	int		hasyyerrored;
GLOBAL	union sockunion his_addr;
GLOBAL	char		hostname[];
#ifdef KERBEROS5
GLOBAL	krb5_context	kcontext;
#endif
GLOBAL	int		logged_in;
GLOBAL	int		logging;
GLOBAL	int		pdata;
GLOBAL	char		proctitle[];
GLOBAL	struct passwd  *pw;
GLOBAL	char		remotehost[];
GLOBAL	off_t		restart_point;
GLOBAL	char		tmpline[];
GLOBAL	sig_atomic_t	transflag;
GLOBAL	int		type;
GLOBAL	int		usedefault;
GLOBAL	const char	version[];

GLOBAL	off_t		total_data_in,  total_data_out,  total_data;
GLOBAL	off_t		total_files_in, total_files_out, total_files;
GLOBAL	off_t		total_bytes_in, total_bytes_out, total_bytes;
GLOBAL	off_t		total_xfers_in, total_xfers_out, total_xfers;


#define EMPTYSTR(p)	((p) == NULL || *(p) == '\0')
#define NEXTWORD(P, W)	do { \
				(W) = strsep(&(P), " \t"); \
			} while ((W) != NULL && *(W) == '\0')
#define PLURAL(s)	((s) == 1 ? "" : "s")
#define REASSIGN(X,Y)	do { if (X) free(X); (X)=(Y); } while (0)

#define	INTERNAL_LS	"/bin/ls"