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NetBSD/libexec/ftpd/extern.h

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/* $NetBSD: extern.h,v 1.49 2003/08/07 09:46:38 agc 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. 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) 1997-2001 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.
*/
#ifdef NO_LONG_LONG
# define LLF "%ld"
# define LLFP(x) "%" x "ld"
# define LLT long
# define ULLF "%lu"
# define ULLFP(x) "%" x "lu"
# define ULLT unsigned long
# define STRTOLL(x,y,z) strtol(x,y,z)
# define LLTMIN LONG_MIN
# define LLTMAX LONG_MAX
#else
# define LLF "%lld"
# define LLFP(x) "%" x "lld"
# define LLT long long
# define ULLF "%llu"
# define ULLFP(x) "%" x "llu"
# define ULLT unsigned long long
# define STRTOLL(x,y,z) strtoll(x,y,z)
# define LLTMIN LLONG_MIN
# define LLTMAX LLONG_MAX
#endif
#define FTP_BUFLEN 512
void abor(void);
void blkfree(char **);
void closedataconn(FILE *);
char *conffilename(const char *);
char **copyblk(char **);
void count_users(void);
void cprintf(FILE *, const char *, ...)
__attribute__((__format__(__printf__, 2, 3)));
void cwd(const char *);
FILE *dataconn(const char *, off_t, const char *);
void delete(const char *);
int display_file(const char *, int);
char **do_conversion(const char *);
void dologout(int);
void fatal(const char *);
void feat(void);
void format_path(char *, const char *);
int ftpd_pclose(FILE *);
FILE *ftpd_popen(char *[], const char *, int);
char *getline(char *, int, FILE *);
void init_curclass(void);
void logxfer(const char *, off_t, const char *, const char *,
const struct timeval *, const char *);
struct tab *lookup(struct tab *, const char *);
void makedir(const char *);
void mlsd(const char *);
void mlst(const char *);
void opts(const char *);
void parse_conf(const char *);
void pass(const char *);
void passive(void);
int lpsvproto2af(int);
int af2lpsvproto(int);
int epsvproto2af(int);
int af2epsvproto(int);
void long_passive(char *, int);
int extended_port(const char *);
void epsv_protounsupp(const char *);
void perror_reply(int, const char *);
void pwd(void);
void removedir(const char *);
void renamecmd(const char *, const char *);
char *renamefrom(const char *);
void reply(int, const char *, ...)
__attribute__((__format__(__printf__, 2, 3)));
void retrieve(char *[], const char *);
void send_file_list(const char *);
void show_chdir_messages(int);
void sizecmd(const char *);
void statcmd(void);
void statfilecmd(const char *);
void statxfer(void);
void store(const char *, const char *, int);
void user(const char *);
char *xstrdup(const char *);
void yyerror(char *);
#ifdef SUPPORT_UTMP
struct utmp;
void ftpd_logwtmp(const char *, const char *, const char *);
void ftpd_login(const struct utmp *ut);
int ftpd_logout(const char *line);
#endif
#ifdef SUPPORT_UTMPX
struct utmpx;
void ftpd_loginx(const struct utmpx *);
void ftpd_logwtmpx(const char *, const char *, const char *, int, int);
#endif
#include <netinet/in.h>
#if defined(__NetBSD__)
# define HAVE_SETPROCTITLE 1
# define HAVE_SOCKADDR_SA_LEN 1
#endif
struct sockinet {
union sockunion {
struct sockaddr_in su_sin;
#ifdef INET6
struct sockaddr_in6 su_sin6;
#endif
} si_su;
#if !HAVE_SOCKADDR_SA_LEN
int si_len;
#endif
};
#if !HAVE_SOCKADDR_SA_LEN
# define su_len si_len
#else
# define su_len si_su.su_sin.sin_len
#endif
#define su_addr si_su.su_sin.sin_addr
#define su_family si_su.su_sin.sin_family
#define su_port si_su.su_sin.sin_port
#ifdef INET6
# define su_6addr si_su.su_sin6.sin6_addr
# define su_scope_id si_su.su_sin6.sin6_scope_id
#endif
struct tab {
char *name;
short token;
short state;
short flags; /* 1 if command implemented, 2 if has options,
4 if can occur OOB */
char *help;
char *options;
};
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 */
};
typedef enum {
CLASS_GUEST,
CLASS_CHROOT,
CLASS_REAL
} class_ft;
typedef enum {
FLAG_checkportcmd = 1<<0, /* Check port commands */
FLAG_denyquick = 1<<1, /* Check ftpusers(5) before PASS */
FLAG_modify = 1<<2, /* Allow CHMOD, DELE, MKD, RMD, RNFR,
UMASK */
FLAG_passive = 1<<3, /* Allow PASV mode */
FLAG_private = 1<<4, /* Don't publish class info in STAT */
FLAG_sanenames = 1<<5, /* Restrict names of uploaded files */
FLAG_upload = 1<<6, /* As per modify, but also allow
APPE, STOR, STOU */
} classflag_t;
#define CURCLASS_FLAGS_SET(x) (curclass.flags |= (FLAG_ ## x))
#define CURCLASS_FLAGS_CLR(x) (curclass.flags &= ~(FLAG_ ## x))
#define CURCLASS_FLAGS_ISSET(x) (curclass.flags & (FLAG_ ## x))
struct ftpclass {
struct sockinet advertise; /* PASV address to advertise as */
char *chroot; /* Directory to chroot(2) to at login */
char *classname; /* Current class */
struct ftpconv *conversions; /* List of conversions */
char *display; /* File to display upon chdir */
char *homedir; /* Directory to chdir(2) to at login */
classflag_t flags; /* Flags; see classflag_t above */
LLT limit; /* Max connections (-1 = unlimited) */
char *limitfile; /* File to display if limit reached */
LLT maxfilesize; /* Maximum file size of uploads */
LLT maxrateget; /* Maximum get transfer rate throttle */
LLT maxrateput; /* Maximum put transfer rate throttle */
LLT maxtimeout; /* Maximum permitted timeout */
char *motd; /* MotD file to display after login */
char *notify; /* Files to notify about upon chdir */
LLT portmin; /* Minumum port for passive mode */
LLT portmax; /* Maximum port for passive mode */
LLT rateget; /* Get (RETR) transfer rate throttle */
LLT rateput; /* Put (STOR) transfer rate throttle */
LLT timeout; /* Default timeout */
class_ft type; /* Class type */
mode_t umask; /* Umask to use */
LLT mmapsize; /* mmap window size */
LLT readsize; /* data read size */
LLT writesize; /* data write size */
LLT sendbufsize; /* SO_SNDBUF size */
LLT sendlowat; /* SO_SNDLOWAT size */
};
extern void ftp_loop(void) __attribute__ ((noreturn));
extern void ftp_handle_line(char *);
#ifndef GLOBAL
#define GLOBAL extern
#endif
GLOBAL struct sockinet ctrl_addr;
GLOBAL struct sockinet data_dest;
GLOBAL struct sockinet data_source;
GLOBAL struct sockinet his_addr;
GLOBAL struct sockinet pasv_addr;
GLOBAL int connections;
GLOBAL struct ftpclass curclass;
GLOBAL int debug;
GLOBAL jmp_buf errcatch;
GLOBAL char *emailaddr;
GLOBAL int form;
GLOBAL int gidcount; /* number of entries in gidlist[] */
GLOBAL gid_t *gidlist;
GLOBAL int hasyyerrored;
GLOBAL char hostname[MAXHOSTNAMELEN+1];
GLOBAL char homedir[MAXPATHLEN];
#ifdef KERBEROS5
GLOBAL krb5_context kcontext;
#endif
GLOBAL int logged_in;
GLOBAL int logging;
GLOBAL int pdata; /* for passive mode */
#if HAVE_SETPROCTITLE
GLOBAL char proctitle[BUFSIZ]; /* initial part of title */
#endif
GLOBAL struct passwd *pw;
GLOBAL int quietmessages;
GLOBAL char remotehost[MAXHOSTNAMELEN+1];
GLOBAL off_t restart_point;
GLOBAL char tmpline[FTP_BUFLEN];
GLOBAL sig_atomic_t transflag;
GLOBAL int type;
GLOBAL int usedefault; /* for data transfers */
GLOBAL const char *version;
GLOBAL int is_oob;
/* total file data bytes */
GLOBAL off_t total_data_in, total_data_out, total_data;
/* total number of data files */
GLOBAL off_t total_files_in, total_files_out, total_files;
/* total bytes */
GLOBAL off_t total_bytes_in, total_bytes_out, total_bytes;
/* total number of xfers */
GLOBAL off_t total_xfers_in, total_xfers_out, total_xfers;
extern struct tab cmdtab[];
#define INTERNAL_LS "/bin/ls"
#define CMD_IMPLEMENTED(x) ((x)->flags != 0)
#define CMD_HAS_OPTIONS(x) ((x)->flags & 0x2)
#define CMD_OOB(x) ((x)->flags & 0x4)
#define CPUTC(c, f) do { \
putc(c, f); total_bytes++; total_bytes_out++; \
} while (0);
#define CURCLASSTYPE curclass.type == CLASS_GUEST ? "GUEST" : \
curclass.type == CLASS_CHROOT ? "CHROOT" : \
curclass.type == CLASS_REAL ? "REAL" : \
"<unknown>"
#define ISDOTDIR(x) (x[0] == '.' && x[1] == '\0')
#define ISDOTDOTDIR(x) (x[0] == '.' && x[1] == '.' && x[2] == '\0')
#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 (/*CONSTCOND*/0)
#ifndef IPPORT_ANONMAX
# define IPPORT_ANONMAX 65535
#endif
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